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* [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters
@ 2021-07-26 11:47 Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 01/12] xfsprogs: Move extent count limits to xfs_format.h Chandan Babu R
                   ` (11 more replies)
  0 siblings, 12 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This patchset implements the changes to userspace programs that are
required to support extending inode's data and attr fork extent
counter fields. It adds the following capabilities to xfsprogs,
1. Add support to programs in xfsprogs to be able to create and work
   with filesystem instances with 64-bit data fork extent counter and
   32-bit attr fork extent counter fields.
2. Enable support for the newly introduced XFS_IOC_BULKSTAT_V6 ioctl.

The patchset is based on Darrick's btree-dynamic-depth branch.
These patches can also be obtained from
https://github.com/chandanr/xfsprogs-dev.git at branch
xfs-incompat-extend-extcnt-v2.

Changelog:
V1 -> V2:
1. Rebase patches on top of Darrick's btree-dynamic-depth branch.
2. Add support for using the new bulkstat ioctl version to support
   64-bit data fork extent counter field.
   
Chandan Babu R (12):
  xfsprogs: Move extent count limits to xfs_format.h
  xfsprogs: Rename MAXEXTNUM, MAXAEXTNUM to XFS_IFORK_EXTCNT_MAXS32,
    XFS_IFORK_EXTCNT_MAXS16
  xfsprogs: Introduce xfs_iext_max() helper
  xfsprogs: Use xfs_extnum_t instead of basic data types
  xfsprogs: Introduce xfs_dfork_nextents() helper
  xfsprogs: xfs_dfork_nextents: Return extent count via an out argument
  xfsprogs: Rename inode's extent counter fields based on their width
  xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits
    respectively
  xfsprogs: Rename XFS_IOC_BULKSTAT to XFS_IOC_BULKSTAT_V5
  xfsprogs: Enable bulkstat ioctl to support 64-bit extent counters
  xfsprogs: Extend per-inode extent counter widths
  xfsprogs: Add extcnt64bit mkfs option

 db/bmap.c                  |  21 +--
 db/btdump.c                |  11 +-
 db/check.c                 |  44 +++++--
 db/field.c                 |   4 -
 db/field.h                 |   2 -
 db/frag.c                  |  11 +-
 db/inode.c                 |  62 +++++++--
 db/metadump.c              |  12 +-
 fsr/xfs_fsr.c              |   9 +-
 include/libxlog.h          |   6 +-
 io/bulkstat.c              |  10 +-
 libfrog/bulkstat.c         | 264 +++++++++++++++++++++----------------
 libfrog/bulkstat.h         |   7 +-
 libfrog/fsgeom.h           |   5 +-
 libxfs/xfs_bmap.c          |  19 ++-
 libxfs/xfs_format.h        |  30 +++--
 libxfs/xfs_fs.h            |   9 +-
 libxfs/xfs_inode_buf.c     |  86 ++++++++++--
 libxfs/xfs_inode_buf.h     |   2 +
 libxfs/xfs_inode_fork.c    |  38 ++++--
 libxfs/xfs_inode_fork.h    |  18 +++
 libxfs/xfs_log_format.h    |   7 +-
 libxfs/xfs_types.h         |  11 +-
 logprint/log_misc.c        |  23 +++-
 logprint/log_print_all.c   |  34 ++++-
 logprint/log_print_trans.c |   2 +-
 man/man8/mkfs.xfs.8        |   7 +
 mkfs/xfs_mkfs.c            |  23 ++++
 repair/attr_repair.c       |  11 +-
 repair/bmap_repair.c       |  22 +++-
 repair/dinode.c            | 139 ++++++++++++-------
 repair/dinode.h            |   4 +-
 repair/prefetch.c          |   7 +-
 repair/scan.c              |   6 +-
 34 files changed, 665 insertions(+), 301 deletions(-)

-- 
2.30.2


^ permalink raw reply	[flat|nested] 19+ messages in thread

* [PATCH V2 01/12] xfsprogs: Move extent count limits to xfs_format.h
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 02/12] xfsprogs: Rename MAXEXTNUM, MAXAEXTNUM to XFS_IFORK_EXTCNT_MAXS32, XFS_IFORK_EXTCNT_MAXS16 Chandan Babu R
                   ` (10 subsequent siblings)
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

Maximum values associated with extent counters i.e. Maximum extent length,
Maximum data extents and Maximum xattr extents are dictated by the on-disk
format. Hence move these definitions over to xfs_format.h.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 libxfs/xfs_format.h | 7 +++++++
 libxfs/xfs_types.h  | 7 -------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index b7704620c..24277f45a 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -1109,6 +1109,13 @@ enum xfs_dinode_fmt {
 	{ XFS_DINODE_FMT_BTREE,		"btree" }, \
 	{ XFS_DINODE_FMT_UUID,		"uuid" }
 
+/*
+ * Max values for extlen, extnum, aextnum.
+ */
+#define	MAXEXTLEN	((uint32_t)0x001fffff)	/* 21 bits */
+#define	MAXEXTNUM	((int32_t)0x7fffffff)	/* signed int */
+#define	MAXAEXTNUM	((int16_t)0x7fff)	/* signed short */
+
 /*
  * Inode minimum and maximum sizes.
  */
diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h
index 5c0cc8060..8908346b1 100644
--- a/libxfs/xfs_types.h
+++ b/libxfs/xfs_types.h
@@ -56,13 +56,6 @@ typedef void *		xfs_failaddr_t;
 #define	NULLFSINO	((xfs_ino_t)-1)
 #define	NULLAGINO	((xfs_agino_t)-1)
 
-/*
- * Max values for extlen, extnum, aextnum.
- */
-#define	MAXEXTLEN	((xfs_extlen_t)0x001fffff)	/* 21 bits */
-#define	MAXEXTNUM	((xfs_extnum_t)0x7fffffff)	/* signed int */
-#define	MAXAEXTNUM	((xfs_aextnum_t)0x7fff)		/* signed short */
-
 /*
  * Minimum and maximum blocksize and sectorsize.
  * The blocksize upper limit is pretty much arbitrary.
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 02/12] xfsprogs: Rename MAXEXTNUM, MAXAEXTNUM to XFS_IFORK_EXTCNT_MAXS32, XFS_IFORK_EXTCNT_MAXS16
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 01/12] xfsprogs: Move extent count limits to xfs_format.h Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 03/12] xfsprogs: Introduce xfs_iext_max() helper Chandan Babu R
                   ` (9 subsequent siblings)
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

In preparation for introducing larger extent count limits, this commit renames
existing extent count limits based on their signedness and width.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 libxfs/xfs_bmap.c       | 4 ++--
 libxfs/xfs_format.h     | 8 ++++----
 libxfs/xfs_inode_buf.c  | 4 ++--
 libxfs/xfs_inode_fork.c | 3 ++-
 repair/dinode.c         | 4 ++--
 5 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 277727a1a..7927e2712 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -69,10 +69,10 @@ xfs_bmap_compute_maxlevels(
 	 * available.
 	 */
 	if (whichfork == XFS_DATA_FORK) {
-		maxleafents = MAXEXTNUM;
+		maxleafents = XFS_IFORK_EXTCNT_MAXS32;
 		sz = xfs_bmdr_space_calc(MINDBTPTRS);
 	} else {
-		maxleafents = MAXAEXTNUM;
+		maxleafents = XFS_IFORK_EXTCNT_MAXS16;
 		sz = xfs_bmdr_space_calc(MINABTPTRS);
 	}
 	maxrootrecs = xfs_bmdr_maxrecs(sz, 0);
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index 24277f45a..84b3aefe2 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -1110,11 +1110,11 @@ enum xfs_dinode_fmt {
 	{ XFS_DINODE_FMT_UUID,		"uuid" }
 
 /*
- * Max values for extlen, extnum, aextnum.
+ * Max values for extlen, disk inode's extent counters.
  */
-#define	MAXEXTLEN	((uint32_t)0x001fffff)	/* 21 bits */
-#define	MAXEXTNUM	((int32_t)0x7fffffff)	/* signed int */
-#define	MAXAEXTNUM	((int16_t)0x7fff)	/* signed short */
+#define	MAXEXTLEN		((uint32_t)0x1fffff) /* 21 bits */
+#define XFS_IFORK_EXTCNT_MAXS32 ((int32_t)0x7fffffff)  /* Signed 32-bits */
+#define XFS_IFORK_EXTCNT_MAXS16 ((int16_t)0x7fff)      /* Signed 16-bits */
 
 /*
  * Inode minimum and maximum sizes.
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 3d1805e4c..855cb0b85 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -362,9 +362,9 @@ xfs_dinode_verify_fork(
 		break;
 	case XFS_DINODE_FMT_BTREE:
 		if (whichfork == XFS_ATTR_FORK) {
-			if (di_nextents > MAXAEXTNUM)
+			if (di_nextents > XFS_IFORK_EXTCNT_MAXS16)
 				return __this_address;
-		} else if (di_nextents > MAXEXTNUM) {
+		} else if (di_nextents > XFS_IFORK_EXTCNT_MAXS32) {
 			return __this_address;
 		}
 		break;
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index e3979ceef..36e8bf702 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -734,7 +734,8 @@ xfs_iext_count_may_overflow(
 	if (whichfork == XFS_COW_FORK)
 		return 0;
 
-	max_exts = (whichfork == XFS_ATTR_FORK) ? MAXAEXTNUM : MAXEXTNUM;
+	max_exts = (whichfork == XFS_ATTR_FORK) ?
+		XFS_IFORK_EXTCNT_MAXS16 : XFS_IFORK_EXTCNT_MAXS32;
 
 	if (XFS_TEST_ERROR(false, ip->i_mount, XFS_ERRTAG_REDUCE_MAX_IEXTENTS))
 		max_exts = 10;
diff --git a/repair/dinode.c b/repair/dinode.c
index ffd409646..45c8174cf 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -1831,7 +1831,7 @@ _("bad nblocks %llu for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
 		}
 	}
 
-	if (nextents > MAXEXTNUM)  {
+	if (nextents > XFS_IFORK_EXTCNT_MAXS32)  {
 		do_warn(
 _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			nextents, lino);
@@ -1854,7 +1854,7 @@ _("bad nextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
 		}
 	}
 
-	if (anextents > MAXAEXTNUM)  {
+	if (anextents > XFS_IFORK_EXTCNT_MAXS16)  {
 		do_warn(
 _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			anextents, lino);
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 03/12] xfsprogs: Introduce xfs_iext_max() helper
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 01/12] xfsprogs: Move extent count limits to xfs_format.h Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 02/12] xfsprogs: Rename MAXEXTNUM, MAXAEXTNUM to XFS_IFORK_EXTCNT_MAXS32, XFS_IFORK_EXTCNT_MAXS16 Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 04/12] xfsprogs: Use xfs_extnum_t instead of basic data types Chandan Babu R
                   ` (8 subsequent siblings)
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

xfs_iext_max() returns the maximum number of extents possible for one of
data, cow or attribute fork. This helper will be extended further in a
future commit when maximum extent counts associated with data/attribute
forks are increased.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 libxfs/xfs_bmap.c       | 9 ++++-----
 libxfs/xfs_inode_buf.c  | 8 +++-----
 libxfs/xfs_inode_fork.c | 6 +++---
 libxfs/xfs_inode_fork.h | 8 ++++++++
 repair/dinode.c         | 7 ++++---
 5 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 7927e2712..608ae5b83 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -68,13 +68,12 @@ xfs_bmap_compute_maxlevels(
 	 * ATTR2 we have to assume the worst case scenario of a minimum size
 	 * available.
 	 */
-	if (whichfork == XFS_DATA_FORK) {
-		maxleafents = XFS_IFORK_EXTCNT_MAXS32;
+	maxleafents = xfs_iext_max(mp, whichfork);
+	if (whichfork == XFS_DATA_FORK)
 		sz = xfs_bmdr_space_calc(MINDBTPTRS);
-	} else {
-		maxleafents = XFS_IFORK_EXTCNT_MAXS16;
+	else
 		sz = xfs_bmdr_space_calc(MINABTPTRS);
-	}
+
 	maxrootrecs = xfs_bmdr_maxrecs(sz, 0);
 	minleafrecs = mp->m_bmap_dmnr[0];
 	minnoderecs = mp->m_bmap_dmnr[1];
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 855cb0b85..056fe252b 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -340,6 +340,7 @@ xfs_dinode_verify_fork(
 	int			whichfork)
 {
 	uint32_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
+	xfs_extnum_t		max_extents;
 
 	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
 	case XFS_DINODE_FMT_LOCAL:
@@ -361,12 +362,9 @@ xfs_dinode_verify_fork(
 			return __this_address;
 		break;
 	case XFS_DINODE_FMT_BTREE:
-		if (whichfork == XFS_ATTR_FORK) {
-			if (di_nextents > XFS_IFORK_EXTCNT_MAXS16)
-				return __this_address;
-		} else if (di_nextents > XFS_IFORK_EXTCNT_MAXS32) {
+		max_extents = xfs_iext_max(mp, whichfork);
+		if (di_nextents > max_extents)
 			return __this_address;
-		}
 		break;
 	default:
 		return __this_address;
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index 36e8bf702..4cd117382 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -727,6 +727,7 @@ xfs_iext_count_may_overflow(
 	int			whichfork,
 	int			nr_to_add)
 {
+	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
 	uint64_t		max_exts;
 	uint64_t		nr_exts;
@@ -734,10 +735,9 @@ xfs_iext_count_may_overflow(
 	if (whichfork == XFS_COW_FORK)
 		return 0;
 
-	max_exts = (whichfork == XFS_ATTR_FORK) ?
-		XFS_IFORK_EXTCNT_MAXS16 : XFS_IFORK_EXTCNT_MAXS32;
+	max_exts = xfs_iext_max(mp, whichfork);
 
-	if (XFS_TEST_ERROR(false, ip->i_mount, XFS_ERRTAG_REDUCE_MAX_IEXTENTS))
+	if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_REDUCE_MAX_IEXTENTS))
 		max_exts = 10;
 
 	nr_exts = ifp->if_nextents + nr_to_add;
diff --git a/libxfs/xfs_inode_fork.h b/libxfs/xfs_inode_fork.h
index cf82be263..1eda21636 100644
--- a/libxfs/xfs_inode_fork.h
+++ b/libxfs/xfs_inode_fork.h
@@ -133,6 +133,14 @@ static inline int8_t xfs_ifork_format(struct xfs_ifork *ifp)
 	return ifp->if_format;
 }
 
+static inline xfs_extnum_t xfs_iext_max(struct xfs_mount *mp, int whichfork)
+{
+	if (whichfork == XFS_DATA_FORK || whichfork == XFS_COW_FORK)
+		return XFS_IFORK_EXTCNT_MAXS32;
+	else
+		return XFS_IFORK_EXTCNT_MAXS16;
+}
+
 struct xfs_ifork *xfs_ifork_alloc(enum xfs_dinode_fmt format,
 				xfs_extnum_t nextents);
 struct xfs_ifork *xfs_iext_state_to_fork(struct xfs_inode *ip, int state);
diff --git a/repair/dinode.c b/repair/dinode.c
index 45c8174cf..a0c5be7c3 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -1808,6 +1808,7 @@ _("bad attr fork offset %d in inode %" PRIu64 ", max=%zu\n"),
  */
 static int
 process_inode_blocks_and_extents(
+	struct xfs_mount *mp,
 	xfs_dinode_t	*dino,
 	xfs_rfsblock_t	nblocks,
 	uint64_t	nextents,
@@ -1831,7 +1832,7 @@ _("bad nblocks %llu for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
 		}
 	}
 
-	if (nextents > XFS_IFORK_EXTCNT_MAXS32)  {
+	if (nextents > xfs_iext_max(mp, XFS_DATA_FORK)) {
 		do_warn(
 _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			nextents, lino);
@@ -1854,7 +1855,7 @@ _("bad nextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
 		}
 	}
 
-	if (anextents > XFS_IFORK_EXTCNT_MAXS16)  {
+	if (anextents > xfs_iext_max(mp, XFS_ATTR_FORK))  {
 		do_warn(
 _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			anextents, lino);
@@ -2961,7 +2962,7 @@ _("Bad CoW extent size %u on inode %" PRIu64 ", "),
 	/*
 	 * correct space counters if required
 	 */
-	if (process_inode_blocks_and_extents(dino, totblocks + atotblocks,
+	if (process_inode_blocks_and_extents(mp, dino, totblocks + atotblocks,
 			nextents, anextents, lino, dirty) != 0)
 		goto clear_bad_out;
 
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 04/12] xfsprogs: Use xfs_extnum_t instead of basic data types
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (2 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 03/12] xfsprogs: Introduce xfs_iext_max() helper Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-27 23:11   ` Darrick J. Wong
  2021-07-26 11:47 ` [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper Chandan Babu R
                   ` (7 subsequent siblings)
  11 siblings, 1 reply; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

xfs_extnum_t is the type to use to declare variables which have values
obtained from xfs_dinode->di_[a]nextents. This commit replaces basic
types (e.g. uint32_t) with xfs_extnum_t for such variables.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 db/bmap.c               | 2 +-
 db/frag.c               | 2 +-
 libxfs/xfs_bmap.c       | 2 +-
 libxfs/xfs_inode_buf.c  | 2 +-
 libxfs/xfs_inode_fork.c | 2 +-
 repair/dinode.c         | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/db/bmap.c b/db/bmap.c
index 5f81d2b52..50f0474bc 100644
--- a/db/bmap.c
+++ b/db/bmap.c
@@ -47,7 +47,7 @@ bmap(
 	int			n;
 	int			nex;
 	xfs_fsblock_t		nextbno;
-	int			nextents;
+	xfs_extnum_t		nextents;
 	xfs_bmbt_ptr_t		*pp;
 	xfs_bmdr_block_t	*rblock;
 	typnm_t			typ;
diff --git a/db/frag.c b/db/frag.c
index 570ad3b74..90fa2131c 100644
--- a/db/frag.c
+++ b/db/frag.c
@@ -273,7 +273,7 @@ process_fork(
 	int		whichfork)
 {
 	extmap_t	*extmap;
-	int		nex;
+	xfs_extnum_t	nex;
 
 	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
 	if (!nex)
diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 608ae5b83..dd60d8105 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -46,9 +46,9 @@ xfs_bmap_compute_maxlevels(
 	xfs_mount_t	*mp,		/* file system mount structure */
 	int		whichfork)	/* data or attr fork */
 {
+	xfs_extnum_t	maxleafents;	/* max leaf entries possible */
 	int		level;		/* btree level */
 	uint		maxblocks;	/* max blocks at this level */
-	uint		maxleafents;	/* max leaf entries possible */
 	int		maxrootrecs;	/* max records in root block */
 	int		minleafrecs;	/* min records in leaf block */
 	int		minnoderecs;	/* min records in node block */
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 056fe252b..b2e8e431a 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -339,7 +339,7 @@ xfs_dinode_verify_fork(
 	struct xfs_mount	*mp,
 	int			whichfork)
 {
-	uint32_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
+	xfs_extnum_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
 	xfs_extnum_t		max_extents;
 
 	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index 4cd117382..48afaaeec 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -105,7 +105,7 @@ xfs_iformat_extents(
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
 	int			state = xfs_bmap_fork_to_state(whichfork);
-	int			nex = XFS_DFORK_NEXTENTS(dip, whichfork);
+	xfs_extnum_t		nex = XFS_DFORK_NEXTENTS(dip, whichfork);
 	int			size = nex * sizeof(xfs_bmbt_rec_t);
 	struct xfs_iext_cursor	icur;
 	struct xfs_bmbt_rec	*dp;
diff --git a/repair/dinode.c b/repair/dinode.c
index a0c5be7c3..a034b5e86 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -967,7 +967,7 @@ process_exinode(
 	xfs_bmbt_rec_t		*rp;
 	xfs_fileoff_t		first_key;
 	xfs_fileoff_t		last_key;
-	int32_t			numrecs;
+	xfs_extnum_t		numrecs;
 	int			ret;
 
 	lino = XFS_AGINO_TO_INO(mp, agno, ino);
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (3 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 04/12] xfsprogs: Use xfs_extnum_t instead of basic data types Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-27 23:14   ` Darrick J. Wong
  2021-07-26 11:47 ` [PATCH V2 06/12] xfsprogs: xfs_dfork_nextents: Return extent count via an out argument Chandan Babu R
                   ` (6 subsequent siblings)
  11 siblings, 1 reply; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This commit replaces the macro XFS_DFORK_NEXTENTS() with the helper function
xfs_dfork_nextents(). As of this commit, xfs_dfork_nextents() returns the same
value as XFS_DFORK_NEXTENTS(). A future commit which extends inode's extent
counter fields will add more logic to this helper.

This commit also replaces direct accesses to xfs_dinode->di_[a]nextents
with calls to xfs_dfork_nextents().

No functional changes have been made.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 db/bmap.c               |  6 ++--
 db/btdump.c             |  4 +--
 db/check.c              | 27 ++++++++++-------
 db/frag.c               |  6 ++--
 db/inode.c              | 14 +++++----
 db/metadump.c           |  4 +--
 libxfs/xfs_format.h     |  4 ---
 libxfs/xfs_inode_buf.c  | 43 +++++++++++++++++++++++----
 libxfs/xfs_inode_buf.h  |  2 ++
 libxfs/xfs_inode_fork.c | 11 ++++---
 repair/attr_repair.c    |  2 +-
 repair/bmap_repair.c    |  4 +--
 repair/dinode.c         | 66 ++++++++++++++++++++++++-----------------
 repair/prefetch.c       |  2 +-
 14 files changed, 123 insertions(+), 72 deletions(-)

diff --git a/db/bmap.c b/db/bmap.c
index 50f0474bc..5e1ab9258 100644
--- a/db/bmap.c
+++ b/db/bmap.c
@@ -68,7 +68,7 @@ bmap(
 	ASSERT(fmt == XFS_DINODE_FMT_LOCAL || fmt == XFS_DINODE_FMT_EXTENTS ||
 		fmt == XFS_DINODE_FMT_BTREE);
 	if (fmt == XFS_DINODE_FMT_EXTENTS) {
-		nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
+		nextents = xfs_dfork_nextents(mp, dip, whichfork);
 		xp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
 		for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
 			if (!bmap_one_extent(ep, &curoffset, eoffset, &n, bep))
@@ -158,9 +158,9 @@ bmap_f(
 		push_cur();
 		set_cur_inode(iocur_top->ino);
 		dip = iocur_top->data;
-		if (be32_to_cpu(dip->di_nextents))
+		if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK))
 			dfork = 1;
-		if (be16_to_cpu(dip->di_anextents))
+		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
 			afork = 1;
 		pop_cur();
 	}
diff --git a/db/btdump.c b/db/btdump.c
index 920f595b4..59609fd2d 100644
--- a/db/btdump.c
+++ b/db/btdump.c
@@ -166,13 +166,13 @@ dump_inode(
 
 	dip = iocur_top->data;
 	if (attrfork) {
-		if (!dip->di_anextents ||
+		if (!xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) ||
 		    dip->di_aformat != XFS_DINODE_FMT_BTREE) {
 			dbprintf(_("attr fork not in btree format\n"));
 			return 0;
 		}
 	} else {
-		if (!dip->di_nextents ||
+		if (!xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) ||
 		    dip->di_format != XFS_DINODE_FMT_BTREE) {
 			dbprintf(_("data fork not in btree format\n"));
 			return 0;
diff --git a/db/check.c b/db/check.c
index 0d923e3ae..fe422e0ca 100644
--- a/db/check.c
+++ b/db/check.c
@@ -2720,7 +2720,7 @@ process_exinode(
 	xfs_bmbt_rec_t		*rp;
 
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
-	*nex = XFS_DFORK_NEXTENTS(dip, whichfork);
+	*nex = xfs_dfork_nextents(mp, dip, whichfork);
 	if (*nex < 0 || *nex > XFS_DFORK_SIZE(dip, mp, whichfork) /
 						sizeof(xfs_bmbt_rec_t)) {
 		if (!sflag || id->ilist)
@@ -2744,12 +2744,14 @@ process_inode(
 	inodata_t		*id = NULL;
 	xfs_ino_t		ino;
 	xfs_extnum_t		nextents = 0;
+	xfs_extnum_t		dnextents;
 	int			security;
 	xfs_rfsblock_t		totblocks;
 	xfs_rfsblock_t		totdblocks = 0;
 	xfs_rfsblock_t		totiblocks = 0;
 	dbm_t			type;
 	xfs_extnum_t		anextents = 0;
+	xfs_extnum_t		danextents;
 	xfs_rfsblock_t		atotdblocks = 0;
 	xfs_rfsblock_t		atotiblocks = 0;
 	xfs_qcnt_t		bc = 0;
@@ -2878,14 +2880,17 @@ process_inode(
 		error++;
 		return;
 	}
+
+	dnextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
+	danextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+
 	if (verbose || (id && id->ilist) || CHECK_BLIST(bno))
 		dbprintf(_("inode %lld mode %#o fmt %s "
 			 "afmt %s "
 			 "nex %d anex %d nblk %lld sz %lld%s%s%s%s%s%s%s\n"),
 			id->ino, mode, fmtnames[(int)dip->di_format],
 			fmtnames[(int)dip->di_aformat],
-			be32_to_cpu(dip->di_nextents),
-			be16_to_cpu(dip->di_anextents),
+			dnextents, danextents,
 			be64_to_cpu(dip->di_nblocks), be64_to_cpu(dip->di_size),
 			diflags & XFS_DIFLAG_REALTIME ? " rt" : "",
 			diflags & XFS_DIFLAG_PREALLOC ? " pre" : "",
@@ -2903,19 +2908,19 @@ process_inode(
 		if (xfs_sb_version_hasmetadir(&mp->m_sb) &&
 		    id->ino == mp->m_sb.sb_metadirino)
 			addlink_inode(id);
-		blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
+		blkmap = blkmap_alloc(dnextents);
 		break;
 	case S_IFREG:
 		if (diflags & XFS_DIFLAG_REALTIME)
 			type = DBM_RTDATA;
 		else if (id->ino == mp->m_sb.sb_rbmino) {
 			type = DBM_RTBITMAP;
-			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
+			blkmap = blkmap_alloc(dnextents);
 			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
 				addlink_inode(id);
 		} else if (id->ino == mp->m_sb.sb_rsumino) {
 			type = DBM_RTSUM;
-			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
+			blkmap = blkmap_alloc(dnextents);
 			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
 				addlink_inode(id);
 		}
@@ -2923,7 +2928,7 @@ process_inode(
 			 id->ino == mp->m_sb.sb_gquotino ||
 			 id->ino == mp->m_sb.sb_pquotino) {
 			type = DBM_QUOTA;
-			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
+			blkmap = blkmap_alloc(dnextents);
 			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
 				addlink_inode(id);
 		}
@@ -3006,17 +3011,17 @@ process_inode(
 				be64_to_cpu(dip->di_nblocks), id->ino, totblocks);
 		error++;
 	}
-	if (nextents != be32_to_cpu(dip->di_nextents)) {
+	if (nextents != dnextents) {
 		if (v)
 			dbprintf(_("bad nextents %d for inode %lld, counted %d\n"),
-				be32_to_cpu(dip->di_nextents), id->ino, nextents);
+				dnextents, id->ino, nextents);
 		error++;
 	}
-	if (anextents != be16_to_cpu(dip->di_anextents)) {
+	if (anextents != danextents) {
 		if (v)
 			dbprintf(_("bad anextents %d for inode %lld, counted "
 				 "%d\n"),
-				be16_to_cpu(dip->di_anextents), id->ino, anextents);
+				danextents, id->ino, anextents);
 		error++;
 	}
 	if (type == DBM_DIR)
diff --git a/db/frag.c b/db/frag.c
index 90fa2131c..3e43a9a21 100644
--- a/db/frag.c
+++ b/db/frag.c
@@ -262,9 +262,11 @@ process_exinode(
 	int			whichfork)
 {
 	xfs_bmbt_rec_t		*rp;
+	xfs_extnum_t		nextents;
 
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
-	process_bmbt_reclist(rp, XFS_DFORK_NEXTENTS(dip, whichfork), extmapp);
+	nextents = xfs_dfork_nextents(mp, dip, whichfork);
+	process_bmbt_reclist(rp, nextents, extmapp);
 }
 
 static void
@@ -275,7 +277,7 @@ process_fork(
 	extmap_t	*extmap;
 	xfs_extnum_t	nex;
 
-	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
+	nex = xfs_dfork_nextents(mp, dip, whichfork);
 	if (!nex)
 		return;
 	extmap = extmap_alloc(nex);
diff --git a/db/inode.c b/db/inode.c
index e59cff451..681f4f98a 100644
--- a/db/inode.c
+++ b/db/inode.c
@@ -278,7 +278,7 @@ inode_a_bmx_count(
 		return 0;
 	ASSERT((char *)XFS_DFORK_APTR(dip) - (char *)dip == byteize(startoff));
 	return dip->di_aformat == XFS_DINODE_FMT_EXTENTS ?
-		be16_to_cpu(dip->di_anextents) : 0;
+		xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) : 0;
 }
 
 static int
@@ -332,6 +332,7 @@ inode_a_size(
 {
 	struct xfs_attr_shortform	*asf;
 	xfs_dinode_t			*dip;
+	xfs_extnum_t			nextents;
 
 	ASSERT(startoff == 0);
 	ASSERT(idx == 0);
@@ -341,8 +342,8 @@ inode_a_size(
 		asf = (struct xfs_attr_shortform *)XFS_DFORK_APTR(dip);
 		return bitize(be16_to_cpu(asf->hdr.totsize));
 	case XFS_DINODE_FMT_EXTENTS:
-		return (int)be16_to_cpu(dip->di_anextents) *
-							bitsz(xfs_bmbt_rec_t);
+		nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+		return (int)nextents * bitsz(xfs_bmbt_rec_t);
 	case XFS_DINODE_FMT_BTREE:
 		return bitize((int)XFS_DFORK_ASIZE(dip, mp));
 	default:
@@ -503,7 +504,7 @@ inode_u_bmx_count(
 	dip = obj;
 	ASSERT((char *)XFS_DFORK_DPTR(dip) - (char *)dip == byteize(startoff));
 	return dip->di_format == XFS_DINODE_FMT_EXTENTS ?
-		be32_to_cpu(dip->di_nextents) : 0;
+		xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) : 0;
 }
 
 static int
@@ -589,6 +590,7 @@ inode_u_size(
 	int		idx)
 {
 	xfs_dinode_t	*dip;
+	xfs_extnum_t	nextents;
 
 	ASSERT(startoff == 0);
 	ASSERT(idx == 0);
@@ -599,8 +601,8 @@ inode_u_size(
 	case XFS_DINODE_FMT_LOCAL:
 		return bitize((int)be64_to_cpu(dip->di_size));
 	case XFS_DINODE_FMT_EXTENTS:
-		return (int)be32_to_cpu(dip->di_nextents) *
-						bitsz(xfs_bmbt_rec_t);
+		nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
+		return (int)nextents * bitsz(xfs_bmbt_rec_t);
 	case XFS_DINODE_FMT_BTREE:
 		return bitize((int)XFS_DFORK_DSIZE(dip, mp));
 	case XFS_DINODE_FMT_UUID:
diff --git a/db/metadump.c b/db/metadump.c
index 332e43a8e..c194501d0 100644
--- a/db/metadump.c
+++ b/db/metadump.c
@@ -2314,7 +2314,7 @@ process_exinode(
 
 	whichfork = (itype == TYP_ATTR) ? XFS_ATTR_FORK : XFS_DATA_FORK;
 
-	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
+	nex = xfs_dfork_nextents(mp, dip, whichfork);
 	used = nex * sizeof(xfs_bmbt_rec_t);
 	if (nex < 0 || used > XFS_DFORK_SIZE(dip, mp, whichfork)) {
 		if (show_warnings)
@@ -2369,7 +2369,7 @@ static int
 process_dev_inode(
 	xfs_dinode_t		*dip)
 {
-	if (XFS_DFORK_NEXTENTS(dip, XFS_DATA_FORK)) {
+	if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK)) {
 		if (show_warnings)
 			print_warning("inode %llu has unexpected extents",
 				      (unsigned long long)cur_ino);
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index 84b3aefe2..2a5e7e3a3 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -1166,10 +1166,6 @@ enum xfs_dinode_fmt {
 	((w) == XFS_DATA_FORK ? \
 		(dip)->di_format : \
 		(dip)->di_aformat)
-#define XFS_DFORK_NEXTENTS(dip,w) \
-	((w) == XFS_DATA_FORK ? \
-		be32_to_cpu((dip)->di_nextents) : \
-		be16_to_cpu((dip)->di_anextents))
 
 /*
  * For block and character special files the 32bit dev_t is stored at the
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index b2e8e431a..8d52ce186 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -339,9 +339,11 @@ xfs_dinode_verify_fork(
 	struct xfs_mount	*mp,
 	int			whichfork)
 {
-	xfs_extnum_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
+	xfs_extnum_t		di_nextents;
 	xfs_extnum_t		max_extents;
 
+	di_nextents = xfs_dfork_nextents(mp, dip, whichfork);
+
 	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
 	case XFS_DINODE_FMT_LOCAL:
 		/*
@@ -372,6 +374,31 @@ xfs_dinode_verify_fork(
 	return NULL;
 }
 
+xfs_extnum_t
+xfs_dfork_nextents(
+	struct xfs_mount	*mp,
+	struct xfs_dinode	*dip,
+	int			whichfork)
+{
+	xfs_extnum_t		nextents = 0;
+
+	switch (whichfork) {
+	case XFS_DATA_FORK:
+		nextents = be32_to_cpu(dip->di_nextents);
+		break;
+
+	case XFS_ATTR_FORK:
+		nextents = be16_to_cpu(dip->di_anextents);
+		break;
+
+	default:
+		ASSERT(0);
+		break;
+	}
+
+	return nextents;
+}
+
 static xfs_failaddr_t
 xfs_dinode_verify_forkoff(
 	struct xfs_dinode	*dip,
@@ -471,6 +498,8 @@ xfs_dinode_verify(
 	uint16_t		flags;
 	uint64_t		flags2;
 	uint64_t		di_size;
+	uint64_t		nblocks;
+	xfs_extnum_t            nextents;
 
 	if (dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))
 		return __this_address;
@@ -501,10 +530,12 @@ xfs_dinode_verify(
 	if ((S_ISLNK(mode) || S_ISDIR(mode)) && di_size == 0)
 		return __this_address;
 
-	/* Fork checks carried over from xfs_iformat_fork */
-	if (mode &&
-	    be32_to_cpu(dip->di_nextents) + be16_to_cpu(dip->di_anextents) >
-			be64_to_cpu(dip->di_nblocks))
+	nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
+	nextents += xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+	nblocks = be64_to_cpu(dip->di_nblocks);
+
+        /* Fork checks carried over from xfs_iformat_fork */
+	if (mode && nextents > nblocks)
 		return __this_address;
 
 	if (mode && XFS_DFORK_BOFF(dip) > mp->m_sb.sb_inodesize)
@@ -561,7 +592,7 @@ xfs_dinode_verify(
 		default:
 			return __this_address;
 		}
-		if (dip->di_anextents)
+		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
 			return __this_address;
 	}
 
diff --git a/libxfs/xfs_inode_buf.h b/libxfs/xfs_inode_buf.h
index a30b76760..ea2c35091 100644
--- a/libxfs/xfs_inode_buf.h
+++ b/libxfs/xfs_inode_buf.h
@@ -36,6 +36,8 @@ xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
 xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
 		uint32_t cowextsize, uint16_t mode, uint16_t flags,
 		uint64_t flags2);
+xfs_extnum_t xfs_dfork_nextents(struct xfs_mount *mp, struct xfs_dinode *dip,
+		int whichfork);
 
 static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
 {
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index 48afaaeec..831313e3a 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -105,7 +105,7 @@ xfs_iformat_extents(
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
 	int			state = xfs_bmap_fork_to_state(whichfork);
-	xfs_extnum_t		nex = XFS_DFORK_NEXTENTS(dip, whichfork);
+	xfs_extnum_t		nex = xfs_dfork_nextents(mp, dip, whichfork);
 	int			size = nex * sizeof(xfs_bmbt_rec_t);
 	struct xfs_iext_cursor	icur;
 	struct xfs_bmbt_rec	*dp;
@@ -224,6 +224,7 @@ xfs_iformat_data_fork(
 	struct xfs_inode	*ip,
 	struct xfs_dinode	*dip)
 {
+	struct xfs_mount	*mp = ip->i_mount;
 	struct inode		*inode = VFS_I(ip);
 	int			error;
 
@@ -232,7 +233,7 @@ xfs_iformat_data_fork(
 	 * depend on it.
 	 */
 	ip->i_df.if_format = dip->di_format;
-	ip->i_df.if_nextents = be32_to_cpu(dip->di_nextents);
+	ip->i_df.if_nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
 
 	switch (inode->i_mode & S_IFMT) {
 	case S_IFIFO:
@@ -299,14 +300,16 @@ xfs_iformat_attr_fork(
 	struct xfs_inode	*ip,
 	struct xfs_dinode	*dip)
 {
+	struct xfs_mount	*mp = ip->i_mount;
+	xfs_extnum_t		nextents;
 	int			error = 0;
 
 	/*
 	 * Initialize the extent count early, as the per-format routines may
 	 * depend on it.
 	 */
-	ip->i_afp = xfs_ifork_alloc(dip->di_aformat,
-				be16_to_cpu(dip->di_anextents));
+	nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+	ip->i_afp = xfs_ifork_alloc(dip->di_aformat, nextents);
 
 	switch (ip->i_afp->if_format) {
 	case XFS_DINODE_FMT_LOCAL:
diff --git a/repair/attr_repair.c b/repair/attr_repair.c
index bc3c2bef7..0a461b675 100644
--- a/repair/attr_repair.c
+++ b/repair/attr_repair.c
@@ -1083,7 +1083,7 @@ process_longform_attr(
 	bno = blkmap_get(blkmap, 0);
 	if (bno == NULLFSBLOCK) {
 		if (dip->di_aformat == XFS_DINODE_FMT_EXTENTS &&
-				be16_to_cpu(dip->di_anextents) == 0)
+			xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) == 0)
 			return(0); /* the kernel can handle this state */
 		do_warn(
 	_("block 0 of inode %" PRIu64 " attribute fork is missing\n"),
diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
index 699089791..2e0475db1 100644
--- a/repair/bmap_repair.c
+++ b/repair/bmap_repair.c
@@ -528,7 +528,7 @@ rebuild_bmap(
 	 */
 	switch (whichfork) {
 	case XFS_DATA_FORK:
-		if ((*dinop)->di_nextents == 0)
+		if (!xfs_dfork_nextents(mp, *dinop, XFS_DATA_FORK))
 			return 0;
 		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
 		(*dinop)->di_nextents = 0;
@@ -536,7 +536,7 @@ rebuild_bmap(
 		*dirty = 1;
 		break;
 	case XFS_ATTR_FORK:
-		if ((*dinop)->di_anextents == 0)
+		if (!xfs_dfork_nextents(mp, *dinop, XFS_ATTR_FORK))
 			return 0;
 		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
 		(*dinop)->di_anextents = 0;
diff --git a/repair/dinode.c b/repair/dinode.c
index a034b5e86..6cc5bce5c 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -69,7 +69,7 @@ _("clearing inode %" PRIu64 " attributes\n"), ino_num);
 		fprintf(stderr,
 _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
 
-	if (be16_to_cpu(dino->di_anextents) != 0)  {
+	if (xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK) != 0) {
 		if (no_modify)
 			return(1);
 		dino->di_anextents = cpu_to_be16(0);
@@ -973,7 +973,7 @@ process_exinode(
 	lino = XFS_AGINO_TO_INO(mp, agno, ino);
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
 	*tot = 0;
-	numrecs = XFS_DFORK_NEXTENTS(dip, whichfork);
+	numrecs = xfs_dfork_nextents(mp, dip, whichfork);
 
 	/*
 	 * We've already decided on the maximum number of extents on the inode,
@@ -1050,7 +1050,7 @@ process_symlink_extlist(xfs_mount_t *mp, xfs_ino_t lino, xfs_dinode_t *dino)
 	xfs_fileoff_t		expected_offset;
 	xfs_bmbt_rec_t		*rp;
 	xfs_bmbt_irec_t		irec;
-	int			numrecs;
+	xfs_extnum_t		numrecs;
 	int			i;
 	int			max_blocks;
 
@@ -1072,7 +1072,7 @@ _("mismatch between format (%d) and size (%" PRId64 ") in symlink inode %" PRIu6
 	}
 
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino);
-	numrecs = be32_to_cpu(dino->di_nextents);
+	numrecs = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
 
 	/*
 	 * the max # of extents in a symlink inode is equal to the
@@ -1578,6 +1578,8 @@ process_check_sb_inodes(
 	int		*type,
 	int		*dirty)
 {
+	xfs_extnum_t	nextents;
+
 	if (lino == mp->m_sb.sb_rootino) {
 		if (*type != XR_INO_DIR)  {
 			do_warn(_("root inode %" PRIu64 " has bad type 0x%x\n"),
@@ -1632,10 +1634,12 @@ _("realtime summary inode %" PRIu64 " has bad type 0x%x, "),
 				do_warn(_("would reset to regular file\n"));
 			}
 		}
-		if (mp->m_sb.sb_rblocks == 0 && dinoc->di_nextents != 0)  {
+
+		nextents = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK);
+		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
 			do_warn(
-_("bad # of extents (%u) for realtime summary inode %" PRIu64 "\n"),
-				be32_to_cpu(dinoc->di_nextents), lino);
+_("bad # of extents (%d) for realtime summary inode %" PRIu64 "\n"),
+				nextents, lino);
 			return 1;
 		}
 		return 0;
@@ -1653,10 +1657,12 @@ _("realtime bitmap inode %" PRIu64 " has bad type 0x%x, "),
 				do_warn(_("would reset to regular file\n"));
 			}
 		}
-		if (mp->m_sb.sb_rblocks == 0 && dinoc->di_nextents != 0)  {
+
+		nextents = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK);
+		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
 			do_warn(
-_("bad # of extents (%u) for realtime bitmap inode %" PRIu64 "\n"),
-				be32_to_cpu(dinoc->di_nextents), lino);
+_("bad # of extents (%d) for realtime bitmap inode %" PRIu64 "\n"),
+				nextents, lino);
 			return 1;
 		}
 		return 0;
@@ -1816,6 +1822,8 @@ process_inode_blocks_and_extents(
 	xfs_ino_t	lino,
 	int		*dirty)
 {
+	xfs_extnum_t		dnextents;
+
 	if (nblocks != be64_to_cpu(dino->di_nblocks))  {
 		if (!no_modify)  {
 			do_warn(
@@ -1838,20 +1846,19 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			nextents, lino);
 		return 1;
 	}
-	if (nextents != be32_to_cpu(dino->di_nextents))  {
+
+	dnextents = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
+	if (nextents != dnextents)  {
 		if (!no_modify)  {
 			do_warn(
 _("correcting nextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
-				lino,
-				be32_to_cpu(dino->di_nextents),
-				nextents);
+				lino, dnextents, nextents);
 			dino->di_nextents = cpu_to_be32(nextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
 _("bad nextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
-				be32_to_cpu(dino->di_nextents),
-				lino, nextents);
+				dnextents, lino, nextents);
 		}
 	}
 
@@ -1861,19 +1868,19 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			anextents, lino);
 		return 1;
 	}
-	if (anextents != be16_to_cpu(dino->di_anextents))  {
+
+	dnextents = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK);
+	if (anextents != dnextents)  {
 		if (!no_modify)  {
 			do_warn(
 _("correcting anextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
-				lino,
-				be16_to_cpu(dino->di_anextents), anextents);
+				lino, dnextents, anextents);
 			dino->di_anextents = cpu_to_be16(anextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
 _("bad anextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
-				be16_to_cpu(dino->di_anextents),
-				lino, anextents);
+				dnextents, lino, anextents);
 		}
 	}
 
@@ -1910,8 +1917,8 @@ process_inode_data_fork(
 {
 	struct xfs_dinode	*dino = *dinop;
 	xfs_ino_t		lino = XFS_AGINO_TO_INO(mp, agno, ino);
+	xfs_extnum_t		nex;
 	int			err = 0;
-	int			nex;
 	int			try_rebuild = -1; /* don't know yet */
 
 retry:
@@ -1920,7 +1927,7 @@ retry:
 	 * uses negative values in memory. hence if we see negative numbers
 	 * here, trash it!
 	 */
-	nex = be32_to_cpu(dino->di_nextents);
+	nex = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
 	if (nex < 0)
 		*nextents = 1;
 	else
@@ -1970,8 +1977,7 @@ _("rebuilding inode %"PRIu64" data fork\n"),
 					lino);
 				try_rebuild = 0;
 				err = rebuild_bmap(mp, lino, XFS_DATA_FORK,
-						be32_to_cpu(dino->di_nextents),
-						ino_bpp, dinop, dirty);
+						nex, ino_bpp, dinop, dirty);
 				dino = *dinop;
 				if (!err)
 					goto retry;
@@ -2070,7 +2076,7 @@ retry:
 		return 0;
 	}
 
-	*anextents = be16_to_cpu(dino->di_anextents);
+	*anextents = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK);
 	if (*anextents > be64_to_cpu(dino->di_nblocks))
 		*anextents = 1;
 
@@ -2118,13 +2124,17 @@ retry:
 
 		if (!no_modify)  {
 			if (try_rebuild == 1) {
+				xfs_extnum_t danextents;
+
+				danextents = xfs_dfork_nextents(mp, dino,
+						XFS_ATTR_FORK);
 				do_warn(
 _("rebuilding inode %"PRIu64" attr fork\n"),
 					lino);
 				try_rebuild = 0;
 				err = rebuild_bmap(mp, lino, XFS_ATTR_FORK,
-						be16_to_cpu(dino->di_anextents),
-						ino_bpp, dinop, dirty);
+						danextents, ino_bpp, dinop,
+						dirty);
 				dino = *dinop;
 				if (!err)
 					goto retry;
diff --git a/repair/prefetch.c b/repair/prefetch.c
index 9e5ced94a..b8d11ead0 100644
--- a/repair/prefetch.c
+++ b/repair/prefetch.c
@@ -393,7 +393,7 @@ pf_read_exinode(
 	xfs_dinode_t		*dino)
 {
 	pf_read_bmbt_reclist(args, (xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino),
-			be32_to_cpu(dino->di_nextents));
+			xfs_dfork_nextents(mp, dino, XFS_DATA_FORK));
 }
 
 static void
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 06/12] xfsprogs: xfs_dfork_nextents: Return extent count via an out argument
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (4 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 07/12] xfsprogs: Rename inode's extent counter fields based on their width Chandan Babu R
                   ` (5 subsequent siblings)
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This commit changes xfs_dfork_nextents() to return an error code. The extent
count itself is now returned through an out argument. This facility will be
used by a future commit to indicate an inconsistent ondisk extent count.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 db/bmap.c               | 19 +++++++++-----
 db/btdump.c             | 11 +++++---
 db/check.c              | 23 ++++++++++++++---
 db/frag.c               |  7 ++---
 db/inode.c              | 28 +++++++++++++++-----
 db/metadump.c           | 12 +++++++--
 libxfs/xfs_inode_buf.c  | 29 +++++++++++++--------
 libxfs/xfs_inode_buf.h  |  4 +--
 libxfs/xfs_inode_fork.c | 26 ++++++++++++++-----
 repair/attr_repair.c    | 11 +++++---
 repair/bmap_repair.c    | 12 +++++++--
 repair/dinode.c         | 57 +++++++++++++++++++++++++++++++----------
 repair/prefetch.c       |  7 +++--
 13 files changed, 181 insertions(+), 65 deletions(-)

diff --git a/db/bmap.c b/db/bmap.c
index 5e1ab9258..5846e2c83 100644
--- a/db/bmap.c
+++ b/db/bmap.c
@@ -68,11 +68,13 @@ bmap(
 	ASSERT(fmt == XFS_DINODE_FMT_LOCAL || fmt == XFS_DINODE_FMT_EXTENTS ||
 		fmt == XFS_DINODE_FMT_BTREE);
 	if (fmt == XFS_DINODE_FMT_EXTENTS) {
-		nextents = xfs_dfork_nextents(mp, dip, whichfork);
-		xp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
-		for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
-			if (!bmap_one_extent(ep, &curoffset, eoffset, &n, bep))
-				break;
+		if (!xfs_dfork_nextents(mp, dip, whichfork, &nextents)) {
+			xp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
+			for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
+				if (!bmap_one_extent(ep, &curoffset, eoffset,
+						&n, bep))
+					break;
+			}
 		}
 	} else if (fmt == XFS_DINODE_FMT_BTREE) {
 		push_cur();
@@ -155,12 +157,15 @@ bmap_f(
 		}
 	}
 	if (afork + dfork == 0) {
+		xfs_extnum_t nextents;
 		push_cur();
 		set_cur_inode(iocur_top->ino);
 		dip = iocur_top->data;
-		if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK))
+		if (!xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &nextents) &&
+		    nextents)
 			dfork = 1;
-		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
+		if (!xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &nextents) &&
+		    nextents)
 			afork = 1;
 		pop_cur();
 	}
diff --git a/db/btdump.c b/db/btdump.c
index 59609fd2d..b1d16d919 100644
--- a/db/btdump.c
+++ b/db/btdump.c
@@ -153,6 +153,7 @@ dump_inode(
 	bool			dump_node_blocks,
 	bool			attrfork)
 {
+	xfs_extnum_t		nextents;
 	char			*prefix;
 	struct xfs_dinode	*dip;
 	int			ret = 0;
@@ -166,14 +167,16 @@ dump_inode(
 
 	dip = iocur_top->data;
 	if (attrfork) {
-		if (!xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) ||
-		    dip->di_aformat != XFS_DINODE_FMT_BTREE) {
+		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &nextents))
+			return -1;
+		if (!nextents || dip->di_aformat != XFS_DINODE_FMT_BTREE) {
 			dbprintf(_("attr fork not in btree format\n"));
 			return 0;
 		}
 	} else {
-		if (!xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) ||
-		    dip->di_format != XFS_DINODE_FMT_BTREE) {
+		if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &nextents))
+			return -1;
+		if (!nextents || dip->di_format != XFS_DINODE_FMT_BTREE) {
 			dbprintf(_("data fork not in btree format\n"));
 			return 0;
 		}
diff --git a/db/check.c b/db/check.c
index fe422e0ca..45aaa8445 100644
--- a/db/check.c
+++ b/db/check.c
@@ -2718,10 +2718,17 @@ process_exinode(
 	int			whichfork)
 {
 	xfs_bmbt_rec_t		*rp;
+	int			ret;
 
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
-	*nex = xfs_dfork_nextents(mp, dip, whichfork);
-	if (*nex < 0 || *nex > XFS_DFORK_SIZE(dip, mp, whichfork) /
+	ret = xfs_dfork_nextents(mp, dip, whichfork, nex);
+	if (ret) {
+		if (!sflag || id->ilist)
+			dbprintf(_("Corrupt extent count for inode %lld\n"),
+				id->ino);
+		error++;
+		return;
+	} else if (*nex < 0 || *nex > XFS_DFORK_SIZE(dip, mp, whichfork) /
 						sizeof(xfs_bmbt_rec_t)) {
 		if (!sflag || id->ilist)
 			dbprintf(_("bad number of extents %d for inode %lld\n"),
@@ -2881,8 +2888,16 @@ process_inode(
 		return;
 	}
 
-	dnextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
-	danextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+	if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &dnextents)) {
+		if (v)
+			dbprintf(_("Corrupt extent count for inode %lld\n"),
+				id->ino);
+		error++;
+		return;
+	}
+
+	if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &danextents))
+		ASSERT(0);
 
 	if (verbose || (id && id->ilist) || CHECK_BLIST(bno))
 		dbprintf(_("inode %lld mode %#o fmt %s "
diff --git a/db/frag.c b/db/frag.c
index 3e43a9a21..f1816b32f 100644
--- a/db/frag.c
+++ b/db/frag.c
@@ -263,9 +263,11 @@ process_exinode(
 {
 	xfs_bmbt_rec_t		*rp;
 	xfs_extnum_t		nextents;
+	int			error;
 
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
-	nextents = xfs_dfork_nextents(mp, dip, whichfork);
+	error = xfs_dfork_nextents(mp, dip, whichfork, &nextents);
+	ASSERT(error == 0);
 	process_bmbt_reclist(rp, nextents, extmapp);
 }
 
@@ -277,8 +279,7 @@ process_fork(
 	extmap_t	*extmap;
 	xfs_extnum_t	nex;
 
-	nex = xfs_dfork_nextents(mp, dip, whichfork);
-	if (!nex)
+	if (xfs_dfork_nextents(mp, dip, whichfork, &nex) || !nex)
 		return;
 	extmap = extmap_alloc(nex);
 	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
diff --git a/db/inode.c b/db/inode.c
index 681f4f98a..e3b7d04c0 100644
--- a/db/inode.c
+++ b/db/inode.c
@@ -269,6 +269,7 @@ inode_a_bmx_count(
 	void		*obj,
 	int		startoff)
 {
+	xfs_extnum_t	nextents;
 	xfs_dinode_t	*dip;
 
 	ASSERT(bitoffs(startoff) == 0);
@@ -277,8 +278,13 @@ inode_a_bmx_count(
 	if (!dip->di_forkoff)
 		return 0;
 	ASSERT((char *)XFS_DFORK_APTR(dip) - (char *)dip == byteize(startoff));
-	return dip->di_aformat == XFS_DINODE_FMT_EXTENTS ?
-		xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) : 0;
+
+	if (dip->di_aformat != XFS_DINODE_FMT_EXTENTS ||
+		xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &nextents)) {
+			nextents = 0;
+	}
+
+        return nextents;
 }
 
 static int
@@ -342,7 +348,8 @@ inode_a_size(
 		asf = (struct xfs_attr_shortform *)XFS_DFORK_APTR(dip);
 		return bitize(be16_to_cpu(asf->hdr.totsize));
 	case XFS_DINODE_FMT_EXTENTS:
-		nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &nextents))
+			nextents = 0;
 		return (int)nextents * bitsz(xfs_bmbt_rec_t);
 	case XFS_DINODE_FMT_BTREE:
 		return bitize((int)XFS_DFORK_ASIZE(dip, mp));
@@ -497,14 +504,20 @@ inode_u_bmx_count(
 	void		*obj,
 	int		startoff)
 {
+	xfs_extnum_t	nextents;
 	xfs_dinode_t	*dip;
 
 	ASSERT(bitoffs(startoff) == 0);
 	ASSERT(obj == iocur_top->data);
 	dip = obj;
 	ASSERT((char *)XFS_DFORK_DPTR(dip) - (char *)dip == byteize(startoff));
-	return dip->di_format == XFS_DINODE_FMT_EXTENTS ?
-		xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) : 0;
+
+	if (dip->di_format != XFS_DINODE_FMT_EXTENTS ||
+		xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &nextents)) {
+		nextents = 0;
+	}
+
+        return nextents;
 }
 
 static int
@@ -590,7 +603,7 @@ inode_u_size(
 	int		idx)
 {
 	xfs_dinode_t	*dip;
-	xfs_extnum_t	nextents;
+	xfs_extnum_t	nextents = 0;
 
 	ASSERT(startoff == 0);
 	ASSERT(idx == 0);
@@ -601,7 +614,8 @@ inode_u_size(
 	case XFS_DINODE_FMT_LOCAL:
 		return bitize((int)be64_to_cpu(dip->di_size));
 	case XFS_DINODE_FMT_EXTENTS:
-		nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
+		if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &nextents))
+			nextents = 0;
 		return (int)nextents * bitsz(xfs_bmbt_rec_t);
 	case XFS_DINODE_FMT_BTREE:
 		return bitize((int)XFS_DFORK_DSIZE(dip, mp));
diff --git a/db/metadump.c b/db/metadump.c
index c194501d0..1b63b3179 100644
--- a/db/metadump.c
+++ b/db/metadump.c
@@ -2314,7 +2314,13 @@ process_exinode(
 
 	whichfork = (itype == TYP_ATTR) ? XFS_ATTR_FORK : XFS_DATA_FORK;
 
-	nex = xfs_dfork_nextents(mp, dip, whichfork);
+	if (xfs_dfork_nextents(mp, dip, whichfork, &nex)) {
+		if (show_warnings)
+			print_warning("Corrupt extent count for inode %lld\n",
+				(long long)cur_ino);
+		return 1;
+	}
+
 	used = nex * sizeof(xfs_bmbt_rec_t);
 	if (nex < 0 || used > XFS_DFORK_SIZE(dip, mp, whichfork)) {
 		if (show_warnings)
@@ -2369,7 +2375,9 @@ static int
 process_dev_inode(
 	xfs_dinode_t		*dip)
 {
-	if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK)) {
+	xfs_extnum_t		nextents;
+
+	if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &nextents) || nextents) {
 		if (show_warnings)
 			print_warning("inode %llu has unexpected extents",
 				      (unsigned long long)cur_ino);
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 8d52ce186..353050365 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -342,7 +342,8 @@ xfs_dinode_verify_fork(
 	xfs_extnum_t		di_nextents;
 	xfs_extnum_t		max_extents;
 
-	di_nextents = xfs_dfork_nextents(mp, dip, whichfork);
+        if (xfs_dfork_nextents(mp, dip, whichfork, &di_nextents))
+		return __this_address;
 
 	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
 	case XFS_DINODE_FMT_LOCAL:
@@ -374,29 +375,31 @@ xfs_dinode_verify_fork(
 	return NULL;
 }
 
-xfs_extnum_t
+int
 xfs_dfork_nextents(
 	struct xfs_mount	*mp,
 	struct xfs_dinode	*dip,
-	int			whichfork)
+	int			whichfork,
+	xfs_extnum_t		*nextents)
 {
-	xfs_extnum_t		nextents = 0;
+	int			error = 0;
 
 	switch (whichfork) {
 	case XFS_DATA_FORK:
-		nextents = be32_to_cpu(dip->di_nextents);
+		*nextents = be32_to_cpu(dip->di_nextents);
 		break;
 
 	case XFS_ATTR_FORK:
-		nextents = be16_to_cpu(dip->di_anextents);
+		*nextents = be16_to_cpu(dip->di_anextents);
 		break;
 
 	default:
 		ASSERT(0);
+		error = -EINVAL;
 		break;
 	}
 
-	return nextents;
+	return error;
 }
 
 static xfs_failaddr_t
@@ -500,6 +503,7 @@ xfs_dinode_verify(
 	uint64_t		di_size;
 	uint64_t		nblocks;
 	xfs_extnum_t            nextents;
+	xfs_extnum_t            naextents;
 
 	if (dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))
 		return __this_address;
@@ -530,8 +534,13 @@ xfs_dinode_verify(
 	if ((S_ISLNK(mode) || S_ISDIR(mode)) && di_size == 0)
 		return __this_address;
 
-	nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
-	nextents += xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
+	if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK, &nextents))
+		return __this_address;
+
+	if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &naextents))
+		return __this_address;
+
+	nextents += naextents;
 	nblocks = be64_to_cpu(dip->di_nblocks);
 
         /* Fork checks carried over from xfs_iformat_fork */
@@ -592,7 +601,7 @@ xfs_dinode_verify(
 		default:
 			return __this_address;
 		}
-		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
+		if (naextents)
 			return __this_address;
 	}
 
diff --git a/libxfs/xfs_inode_buf.h b/libxfs/xfs_inode_buf.h
index ea2c35091..20f796610 100644
--- a/libxfs/xfs_inode_buf.h
+++ b/libxfs/xfs_inode_buf.h
@@ -36,8 +36,8 @@ xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
 xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
 		uint32_t cowextsize, uint16_t mode, uint16_t flags,
 		uint64_t flags2);
-xfs_extnum_t xfs_dfork_nextents(struct xfs_mount *mp, struct xfs_dinode *dip,
-		int whichfork);
+int xfs_dfork_nextents(struct xfs_mount *mp, struct xfs_dinode *dip,
+		int whichfork, xfs_extnum_t *nextents);
 
 static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
 {
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index 831313e3a..699bac823 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -105,12 +105,19 @@ xfs_iformat_extents(
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
 	int			state = xfs_bmap_fork_to_state(whichfork);
-	xfs_extnum_t		nex = xfs_dfork_nextents(mp, dip, whichfork);
-	int			size = nex * sizeof(xfs_bmbt_rec_t);
+	xfs_extnum_t		nex;
+	int			size;
 	struct xfs_iext_cursor	icur;
 	struct xfs_bmbt_rec	*dp;
 	struct xfs_bmbt_irec	new;
-	int			i;
+	int			error;
+	xfs_extnum_t		i;
+
+	error = xfs_dfork_nextents(mp, dip, whichfork, &nex);
+	if (error)
+		return error;
+
+	size = nex * sizeof(xfs_bmbt_rec_t);
 
 	/*
 	 * If the number of extents is unreasonable, then something is wrong and
@@ -233,7 +240,11 @@ xfs_iformat_data_fork(
 	 * depend on it.
 	 */
 	ip->i_df.if_format = dip->di_format;
-	ip->i_df.if_nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
+
+	error = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK,
+		&ip->i_df.if_nextents);
+	if (error)
+		return error;
 
 	switch (inode->i_mode & S_IFMT) {
 	case S_IFIFO:
@@ -304,11 +315,14 @@ xfs_iformat_attr_fork(
 	xfs_extnum_t		nextents;
 	int			error = 0;
 
-	/*
+	error = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK, &nextents);
+	if (error)
+		return error;
+
+        /*
 	 * Initialize the extent count early, as the per-format routines may
 	 * depend on it.
 	 */
-	nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
 	ip->i_afp = xfs_ifork_alloc(dip->di_aformat, nextents);
 
 	switch (ip->i_afp->if_format) {
diff --git a/repair/attr_repair.c b/repair/attr_repair.c
index 0a461b675..c6c30210f 100644
--- a/repair/attr_repair.c
+++ b/repair/attr_repair.c
@@ -1073,6 +1073,7 @@ process_longform_attr(
 	struct blkmap		*blkmap,
 	int			*repair) /* out - 1 if something was fixed */
 {
+	xfs_extnum_t		anextents;
 	xfs_fsblock_t		bno;
 	struct xfs_buf		*bp;
 	struct xfs_da_blkinfo	*info;
@@ -1082,9 +1083,13 @@ process_longform_attr(
 
 	bno = blkmap_get(blkmap, 0);
 	if (bno == NULLFSBLOCK) {
-		if (dip->di_aformat == XFS_DINODE_FMT_EXTENTS &&
-			xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) == 0)
-			return(0); /* the kernel can handle this state */
+		if (dip->di_aformat == XFS_DINODE_FMT_EXTENTS) {
+			error = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK,
+					&anextents);
+			ASSERT(error == 0);
+			if (anextents == 0)
+				return(0); /* the kernel can handle this state */
+		}
 		do_warn(
 	_("block 0 of inode %" PRIu64 " attribute fork is missing\n"),
 			ino);
diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
index 2e0475db1..84f3a7048 100644
--- a/repair/bmap_repair.c
+++ b/repair/bmap_repair.c
@@ -14,6 +14,7 @@
 #include "rmap.h"
 #include "bulkload.h"
 #include "bmap_repair.h"
+#include "xfs_inode_buf.h"
 
 #define min_t(type, x, y) ( ((type)(x)) > ((type)(y)) ? ((type)(y)) : ((type)(x)) )
 
@@ -516,6 +517,7 @@ rebuild_bmap(
 	struct xfs_buf		*bp;
 	unsigned long long	resblks;
 	xfs_daddr_t		bp_bn;
+	xfs_extnum_t		nextents;
 	int			bp_length;
 	int			error;
 
@@ -528,7 +530,10 @@ rebuild_bmap(
 	 */
 	switch (whichfork) {
 	case XFS_DATA_FORK:
-		if (!xfs_dfork_nextents(mp, *dinop, XFS_DATA_FORK))
+		error = xfs_dfork_nextents(mp, *dinop, whichfork, &nextents);
+		if (error)
+			return error;
+		if (nextents == 0)
 			return 0;
 		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
 		(*dinop)->di_nextents = 0;
@@ -536,7 +541,10 @@ rebuild_bmap(
 		*dirty = 1;
 		break;
 	case XFS_ATTR_FORK:
-		if (!xfs_dfork_nextents(mp, *dinop, XFS_ATTR_FORK))
+		error = xfs_dfork_nextents(mp, *dinop, whichfork, &nextents);
+		if (error)
+			return error;
+		if (nextents == 0)
 			return 0;
 		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
 		(*dinop)->di_anextents = 0;
diff --git a/repair/dinode.c b/repair/dinode.c
index 6cc5bce5c..096335191 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -60,6 +60,9 @@ get_forkname(int whichfork)
 static int
 clear_dinode_attr(xfs_mount_t *mp, xfs_dinode_t *dino, xfs_ino_t ino_num)
 {
+	xfs_extnum_t anextents;
+	int err;
+
 	ASSERT(dino->di_forkoff != 0);
 
 	if (!no_modify)
@@ -69,7 +72,10 @@ _("clearing inode %" PRIu64 " attributes\n"), ino_num);
 		fprintf(stderr,
 _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
 
-	if (xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK) != 0) {
+	err = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK, &anextents);
+	ASSERT(err == 0);
+
+	if (anextents != 0) {
 		if (no_modify)
 			return(1);
 		dino->di_anextents = cpu_to_be16(0);
@@ -973,7 +979,8 @@ process_exinode(
 	lino = XFS_AGINO_TO_INO(mp, agno, ino);
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
 	*tot = 0;
-	numrecs = xfs_dfork_nextents(mp, dip, whichfork);
+	ret = xfs_dfork_nextents(mp, dip, whichfork, &numrecs);
+	ASSERT(ret == 0);
 
 	/*
 	 * We've already decided on the maximum number of extents on the inode,
@@ -1053,6 +1060,7 @@ process_symlink_extlist(xfs_mount_t *mp, xfs_ino_t lino, xfs_dinode_t *dino)
 	xfs_extnum_t		numrecs;
 	int			i;
 	int			max_blocks;
+	int			ret;
 
 	if (be64_to_cpu(dino->di_size) <= XFS_DFORK_DSIZE(dino, mp)) {
 		if (dino->di_format == XFS_DINODE_FMT_LOCAL)
@@ -1072,7 +1080,8 @@ _("mismatch between format (%d) and size (%" PRId64 ") in symlink inode %" PRIu6
 	}
 
 	rp = (xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino);
-	numrecs = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
+	ret = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK, &numrecs);
+	ASSERT(ret == 0);
 
 	/*
 	 * the max # of extents in a symlink inode is equal to the
@@ -1579,6 +1588,7 @@ process_check_sb_inodes(
 	int		*dirty)
 {
 	xfs_extnum_t	nextents;
+	int		ret;
 
 	if (lino == mp->m_sb.sb_rootino) {
 		if (*type != XR_INO_DIR)  {
@@ -1635,7 +1645,9 @@ _("realtime summary inode %" PRIu64 " has bad type 0x%x, "),
 			}
 		}
 
-		nextents = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK);
+		ret = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK, &nextents);
+		ASSERT(ret == 0);
+
 		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
 			do_warn(
 _("bad # of extents (%d) for realtime summary inode %" PRIu64 "\n"),
@@ -1658,8 +1670,10 @@ _("realtime bitmap inode %" PRIu64 " has bad type 0x%x, "),
 			}
 		}
 
-		nextents = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK);
-		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
+		ret = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK, &nextents);
+		ASSERT(ret == 0);
+
+                if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
 			do_warn(
 _("bad # of extents (%d) for realtime bitmap inode %" PRIu64 "\n"),
 				nextents, lino);
@@ -1823,6 +1837,7 @@ process_inode_blocks_and_extents(
 	int		*dirty)
 {
 	xfs_extnum_t		dnextents;
+	int			ret;
 
 	if (nblocks != be64_to_cpu(dino->di_nblocks))  {
 		if (!no_modify)  {
@@ -1847,7 +1862,9 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 		return 1;
 	}
 
-	dnextents = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
+	ret = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK, &dnextents);
+	ASSERT(ret == 0);
+
 	if (nextents != dnextents)  {
 		if (!no_modify)  {
 			do_warn(
@@ -1869,7 +1886,9 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 		return 1;
 	}
 
-	dnextents = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK);
+	ret = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK, &dnextents);
+	ASSERT(ret == 0);
+
 	if (anextents != dnextents)  {
 		if (!no_modify)  {
 			do_warn(
@@ -1920,6 +1939,7 @@ process_inode_data_fork(
 	xfs_extnum_t		nex;
 	int			err = 0;
 	int			try_rebuild = -1; /* don't know yet */
+	int			ret;
 
 retry:
 	/*
@@ -1927,7 +1947,9 @@ retry:
 	 * uses negative values in memory. hence if we see negative numbers
 	 * here, trash it!
 	 */
-	nex = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
+	ret = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK, &nex);
+	ASSERT(ret == 0);
+
 	if (nex < 0)
 		*nextents = 1;
 	else
@@ -2076,8 +2098,11 @@ retry:
 		return 0;
 	}
 
-	*anextents = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK);
-	if (*anextents > be64_to_cpu(dino->di_nblocks))
+	err = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK,
+			(xfs_extnum_t *)anextents);
+	ASSERT(err == 0);
+
+        if (*anextents > be64_to_cpu(dino->di_nblocks))
 		*anextents = 1;
 
 	switch (dino->di_aformat) {
@@ -2126,8 +2151,10 @@ retry:
 			if (try_rebuild == 1) {
 				xfs_extnum_t danextents;
 
-				danextents = xfs_dfork_nextents(mp, dino,
-						XFS_ATTR_FORK);
+				err = xfs_dfork_nextents(mp, dino,
+						XFS_ATTR_FORK, &danextents);
+				ASSERT(err == 0);
+
 				do_warn(
 _("rebuilding inode %"PRIu64" attr fork\n"),
 					lino);
@@ -2831,6 +2858,10 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"),
 		goto clear_bad_out;
 	}
 
+	if (xfs_dfork_nextents(mp, dino, XFS_DATA_FORK,
+		(xfs_extnum_t *)&nextents))
+		goto clear_bad_out;
+
 	/*
 	 * type checks for superblock inodes
 	 */
diff --git a/repair/prefetch.c b/repair/prefetch.c
index b8d11ead0..5ba0ecaa9 100644
--- a/repair/prefetch.c
+++ b/repair/prefetch.c
@@ -392,8 +392,11 @@ pf_read_exinode(
 	prefetch_args_t		*args,
 	xfs_dinode_t		*dino)
 {
-	pf_read_bmbt_reclist(args, (xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino),
-			xfs_dfork_nextents(mp, dino, XFS_DATA_FORK));
+	xfs_extnum_t		nextents;
+
+	if (!xfs_dfork_nextents(mp, dino, XFS_DATA_FORK, &nextents))
+		pf_read_bmbt_reclist(args,
+			(xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino), nextents);
 }
 
 static void
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 07/12] xfsprogs: Rename inode's extent counter fields based on their width
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (5 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 06/12] xfsprogs: xfs_dfork_nextents: Return extent count via an out argument Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 08/12] xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively Chandan Babu R
                   ` (4 subsequent siblings)
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This commit renames extent counter fields in "struct xfs_dinode" and "struct
xfs_log_dinode" based on the width of the fields. As of this commit, the
32-bit field will be used to count data fork extents and the 16-bit field will
be used to count attr fork extents.

This change is done to enable a future commit to introduce a new 64-bit extent
counter field.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 db/inode.c               | 4 ++--
 libxfs/xfs_format.h      | 4 ++--
 libxfs/xfs_inode_buf.c   | 8 ++++----
 libxfs/xfs_log_format.h  | 4 ++--
 logprint/log_misc.c      | 4 ++--
 logprint/log_print_all.c | 2 +-
 repair/bmap_repair.c     | 4 ++--
 repair/dinode.c          | 6 +++---
 8 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/db/inode.c b/db/inode.c
index e3b7d04c0..27251f02f 100644
--- a/db/inode.c
+++ b/db/inode.c
@@ -100,8 +100,8 @@ const field_t	inode_core_flds[] = {
 	{ "size", FLDT_FSIZE, OI(COFF(size)), C1, 0, TYP_NONE },
 	{ "nblocks", FLDT_DRFSBNO, OI(COFF(nblocks)), C1, 0, TYP_NONE },
 	{ "extsize", FLDT_EXTLEN, OI(COFF(extsize)), C1, 0, TYP_NONE },
-	{ "nextents", FLDT_EXTNUM, OI(COFF(nextents)), C1, 0, TYP_NONE },
-	{ "naextents", FLDT_AEXTNUM, OI(COFF(anextents)), C1, 0, TYP_NONE },
+	{ "nextents32", FLDT_EXTNUM, OI(COFF(nextents32)), C1, 0, TYP_NONE },
+	{ "nextents16", FLDT_AEXTNUM, OI(COFF(nextents16)), C1, 0, TYP_NONE },
 	{ "forkoff", FLDT_UINT8D, OI(COFF(forkoff)), C1, 0, TYP_NONE },
 	{ "aformat", FLDT_DINODE_FMT, OI(COFF(aformat)), C1, 0, TYP_NONE },
 	{ "dmevmask", FLDT_UINT32X, OI(COFF(dmevmask)), C1, 0, TYP_NONE },
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index 2a5e7e3a3..6564bc135 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -1039,8 +1039,8 @@ typedef struct xfs_dinode {
 	__be64		di_size;	/* number of bytes in file */
 	__be64		di_nblocks;	/* # of direct & btree blocks used */
 	__be32		di_extsize;	/* basic/minimum extent size for file */
-	__be32		di_nextents;	/* number of extents in data fork */
-	__be16		di_anextents;	/* number of extents in attribute fork*/
+	__be32		di_nextents32;	/* 32-bit extent counter */
+	__be16		di_nextents16;	/* 16-bit extent counter */
 	__u8		di_forkoff;	/* attr fork offs, <<3 for 64b align */
 	__s8		di_aformat;	/* format of attr fork's data */
 	__be32		di_dmevmask;	/* DMIG event mask */
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 353050365..95fd95cc0 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -310,8 +310,8 @@ xfs_inode_to_disk(
 	to->di_size = cpu_to_be64(ip->i_disk_size);
 	to->di_nblocks = cpu_to_be64(ip->i_nblocks);
 	to->di_extsize = cpu_to_be32(ip->i_extsize);
-	to->di_nextents = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
-	to->di_anextents = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
+	to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
+	to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
 	to->di_forkoff = ip->i_forkoff;
 	to->di_aformat = xfs_ifork_format(ip->i_afp);
 	to->di_flags = cpu_to_be16(ip->i_diflags);
@@ -386,11 +386,11 @@ xfs_dfork_nextents(
 
 	switch (whichfork) {
 	case XFS_DATA_FORK:
-		*nextents = be32_to_cpu(dip->di_nextents);
+		*nextents = be32_to_cpu(dip->di_nextents32);
 		break;
 
 	case XFS_ATTR_FORK:
-		*nextents = be16_to_cpu(dip->di_anextents);
+		*nextents = be16_to_cpu(dip->di_nextents16);
 		break;
 
 	default:
diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
index 0c888f921..ca8e4ad83 100644
--- a/libxfs/xfs_log_format.h
+++ b/libxfs/xfs_log_format.h
@@ -402,8 +402,8 @@ struct xfs_log_dinode {
 	xfs_fsize_t	di_size;	/* number of bytes in file */
 	xfs_rfsblock_t	di_nblocks;	/* # of direct & btree blocks used */
 	xfs_extlen_t	di_extsize;	/* basic/minimum extent size for file */
-	xfs_extnum_t	di_nextents;	/* number of extents in data fork */
-	xfs_aextnum_t	di_anextents;	/* number of extents in attribute fork*/
+	uint32_t	di_nextents32;	/* number of extents in data fork */
+	uint16_t	di_nextents16;	/* number of extents in attribute fork*/
 	uint8_t		di_forkoff;	/* attr fork offs, <<3 for 64b align */
 	int8_t		di_aformat;	/* format of attr fork's data */
 	uint32_t	di_dmevmask;	/* DMIG event mask */
diff --git a/logprint/log_misc.c b/logprint/log_misc.c
index c06fd233b..4e8760c43 100644
--- a/logprint/log_misc.c
+++ b/logprint/log_misc.c
@@ -452,9 +452,9 @@ xlog_print_trans_inode_core(
 		xlog_extract_dinode_ts(ip->di_ctime));
     printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%x\n"),
 	   (unsigned long long)ip->di_size, (unsigned long long)ip->di_nblocks,
-	   ip->di_extsize, ip->di_nextents);
+	   ip->di_extsize, ip->di_nextents32);
     printf(_("naextents 0x%x forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
-	   ip->di_anextents, (int)ip->di_forkoff, ip->di_dmevmask,
+	   ip->di_nextents16, (int)ip->di_forkoff, ip->di_dmevmask,
 	   ip->di_dmstate);
     printf(_("flags 0x%x gen 0x%x\n"),
 	   ip->di_flags, ip->di_gen);
diff --git a/logprint/log_print_all.c b/logprint/log_print_all.c
index 37669372e..403c56372 100644
--- a/logprint/log_print_all.c
+++ b/logprint/log_print_all.c
@@ -257,7 +257,7 @@ xlog_recover_print_inode_core(
 	printf(_("		size:0x%llx  nblks:0x%llx  exsize:%d  "
 	     "nextents:%d  anextents:%d\n"), (unsigned long long)
 	       di->di_size, (unsigned long long)di->di_nblocks,
-	       di->di_extsize, di->di_nextents, (int)di->di_anextents);
+	       di->di_extsize, di->di_nextents32, (int)di->di_nextents16);
 	printf(_("		forkoff:%d  dmevmask:0x%x  dmstate:%d  flags:0x%x  "
 	     "gen:%u\n"),
 	       (int)di->di_forkoff, di->di_dmevmask, (int)di->di_dmstate,
diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
index 84f3a7048..f41a18f00 100644
--- a/repair/bmap_repair.c
+++ b/repair/bmap_repair.c
@@ -536,7 +536,7 @@ rebuild_bmap(
 		if (nextents == 0)
 			return 0;
 		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
-		(*dinop)->di_nextents = 0;
+		(*dinop)->di_nextents32 = 0;
 		libxfs_dinode_calc_crc(mp, *dinop);
 		*dirty = 1;
 		break;
@@ -547,7 +547,7 @@ rebuild_bmap(
 		if (nextents == 0)
 			return 0;
 		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
-		(*dinop)->di_anextents = 0;
+		(*dinop)->di_nextents16 = 0;
 		libxfs_dinode_calc_crc(mp, *dinop);
 		*dirty = 1;
 		break;
diff --git a/repair/dinode.c b/repair/dinode.c
index 096335191..efff83ef9 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -78,7 +78,7 @@ _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
 	if (anextents != 0) {
 		if (no_modify)
 			return(1);
-		dino->di_anextents = cpu_to_be16(0);
+		dino->di_nextents16 = cpu_to_be16(0);
 	}
 
 	if (dino->di_aformat != XFS_DINODE_FMT_EXTENTS)  {
@@ -1870,7 +1870,7 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			do_warn(
 _("correcting nextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
 				lino, dnextents, nextents);
-			dino->di_nextents = cpu_to_be32(nextents);
+			dino->di_nextents32 = cpu_to_be32(nextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
@@ -1894,7 +1894,7 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			do_warn(
 _("correcting anextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
 				lino, dnextents, anextents);
-			dino->di_anextents = cpu_to_be16(anextents);
+			dino->di_nextents16 = cpu_to_be16(anextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 08/12] xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (6 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 07/12] xfsprogs: Rename inode's extent counter fields based on their width Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-27 23:15   ` Darrick J. Wong
  2021-07-26 11:47 ` [PATCH V2 09/12] xfsprogs: Rename XFS_IOC_BULKSTAT to XFS_IOC_BULKSTAT_V5 Chandan Babu R
                   ` (3 subsequent siblings)
  11 siblings, 1 reply; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

A future commit will introduce a 64-bit on-disk data extent counter and a
32-bit on-disk attr extent counter. This commit promotes xfs_extnum_t and
xfs_aextnum_t to 64 and 32-bits in order to correctly handle in-core versions
of these quantities.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 libxfs/xfs_inode_fork.c |  2 +-
 libxfs/xfs_types.h      |  4 ++--
 repair/dinode.c         | 20 ++++++++++----------
 repair/dinode.h         |  4 ++--
 repair/scan.c           |  6 +++---
 5 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index 699bac823..8e2da89c7 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -124,7 +124,7 @@ xfs_iformat_extents(
 	 * we just bail out rather than crash in kmem_alloc() or memcpy() below.
 	 */
 	if (unlikely(size < 0 || size > XFS_DFORK_SIZE(dip, mp, whichfork))) {
-		xfs_warn(ip->i_mount, "corrupt inode %Lu ((a)extents = %d).",
+		xfs_warn(ip->i_mount, "corrupt inode %Lu ((a)extents = %llu).",
 			(unsigned long long) ip->i_ino, nex);
 		xfs_inode_verifier_error(ip, -EFSCORRUPTED,
 				"xfs_iformat_extents(1)", dip, sizeof(*dip),
diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h
index 8908346b1..584fa61e3 100644
--- a/libxfs/xfs_types.h
+++ b/libxfs/xfs_types.h
@@ -12,8 +12,8 @@ typedef uint32_t	xfs_agblock_t;	/* blockno in alloc. group */
 typedef uint32_t	xfs_agino_t;	/* inode # within allocation grp */
 typedef uint32_t	xfs_extlen_t;	/* extent length in blocks */
 typedef uint32_t	xfs_agnumber_t;	/* allocation group number */
-typedef int32_t		xfs_extnum_t;	/* # of extents in a file */
-typedef int16_t		xfs_aextnum_t;	/* # extents in an attribute fork */
+typedef uint64_t	xfs_extnum_t;	/* # of extents in a file */
+typedef uint32_t	xfs_aextnum_t;	/* # extents in an attribute fork */
 typedef int64_t		xfs_fsize_t;	/* bytes in a file */
 typedef uint64_t	xfs_ufsize_t;	/* unsigned bytes in a file */
 
diff --git a/repair/dinode.c b/repair/dinode.c
index efff83ef9..beeb9ed07 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -357,7 +357,7 @@ static int
 process_bmbt_reclist_int(
 	xfs_mount_t		*mp,
 	xfs_bmbt_rec_t		*rp,
-	int			*numrecs,
+	xfs_extnum_t		*numrecs,
 	int			type,
 	xfs_ino_t		ino,
 	xfs_rfsblock_t		*tot,
@@ -680,7 +680,7 @@ int
 process_bmbt_reclist(
 	xfs_mount_t		*mp,
 	xfs_bmbt_rec_t		*rp,
-	int			*numrecs,
+	xfs_extnum_t		*numrecs,
 	int			type,
 	xfs_ino_t		ino,
 	xfs_rfsblock_t		*tot,
@@ -703,7 +703,7 @@ int
 scan_bmbt_reclist(
 	xfs_mount_t		*mp,
 	xfs_bmbt_rec_t		*rp,
-	int			*numrecs,
+	xfs_extnum_t		*numrecs,
 	int			type,
 	xfs_ino_t		ino,
 	xfs_rfsblock_t		*tot,
@@ -1089,7 +1089,7 @@ _("mismatch between format (%d) and size (%" PRId64 ") in symlink inode %" PRIu6
 	 */
 	if (numrecs > max_symlink_blocks)  {
 		do_warn(
-_("bad number of extents (%d) in symlink %" PRIu64 " data fork\n"),
+_("bad number of extents (%lu) in symlink %" PRIu64 " data fork\n"),
 			numrecs, lino);
 		return(1);
 	}
@@ -1650,7 +1650,7 @@ _("realtime summary inode %" PRIu64 " has bad type 0x%x, "),
 
 		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
 			do_warn(
-_("bad # of extents (%d) for realtime summary inode %" PRIu64 "\n"),
+_("bad # of extents (%lu) for realtime summary inode %" PRIu64 "\n"),
 				nextents, lino);
 			return 1;
 		}
@@ -1675,7 +1675,7 @@ _("realtime bitmap inode %" PRIu64 " has bad type 0x%x, "),
 
                 if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
 			do_warn(
-_("bad # of extents (%d) for realtime bitmap inode %" PRIu64 "\n"),
+_("bad # of extents (%lu) for realtime bitmap inode %" PRIu64 "\n"),
 				nextents, lino);
 			return 1;
 		}
@@ -1868,13 +1868,13 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 	if (nextents != dnextents)  {
 		if (!no_modify)  {
 			do_warn(
-_("correcting nextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
+_("correcting nextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
 				lino, dnextents, nextents);
 			dino->di_nextents32 = cpu_to_be32(nextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
-_("bad nextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
+_("bad nextents %lu for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
 				dnextents, lino, nextents);
 		}
 	}
@@ -1892,13 +1892,13 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 	if (anextents != dnextents)  {
 		if (!no_modify)  {
 			do_warn(
-_("correcting anextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
+_("correcting anextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
 				lino, dnextents, anextents);
 			dino->di_nextents16 = cpu_to_be16(anextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
-_("bad anextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
+_("bad anextents %lu for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
 				dnextents, lino, anextents);
 		}
 	}
diff --git a/repair/dinode.h b/repair/dinode.h
index e190b7435..09129e7b5 100644
--- a/repair/dinode.h
+++ b/repair/dinode.h
@@ -20,7 +20,7 @@ convert_extent(
 int
 process_bmbt_reclist(xfs_mount_t	*mp,
 		xfs_bmbt_rec_t		*rp,
-		int			*numrecs,
+		xfs_extnum_t		*numrecs,
 		int			type,
 		xfs_ino_t		ino,
 		xfs_rfsblock_t		*tot,
@@ -34,7 +34,7 @@ int
 scan_bmbt_reclist(
 	xfs_mount_t		*mp,
 	xfs_bmbt_rec_t		*rp,
-	int			*numrecs,
+	xfs_extnum_t		*numrecs,
 	int			type,
 	xfs_ino_t		ino,
 	xfs_rfsblock_t		*tot,
diff --git a/repair/scan.c b/repair/scan.c
index 86fa8b4dd..76021cff0 100644
--- a/repair/scan.c
+++ b/repair/scan.c
@@ -223,7 +223,7 @@ scan_bmapbt(
 	xfs_fileoff_t		first_key;
 	xfs_fileoff_t		last_key;
 	char			*forkname = get_forkname(whichfork);
-	int			numrecs;
+	xfs_extnum_t		numrecs;
 	xfs_agnumber_t		agno;
 	xfs_agblock_t		agbno;
 	int			state;
@@ -443,7 +443,7 @@ _("couldn't add inode %"PRIu64" bmbt block %"PRIu64" reverse-mapping data."),
 		if (numrecs > mp->m_bmap_dmxr[0] || (isroot == 0 && numrecs <
 							mp->m_bmap_dmnr[0])) {
 				do_warn(
-_("inode %" PRIu64 " bad # of bmap records (%u, min - %u, max - %u)\n"),
+_("inode %" PRIu64 " bad # of bmap records (%lu, min - %u, max - %u)\n"),
 					ino, numrecs, mp->m_bmap_dmnr[0],
 					mp->m_bmap_dmxr[0]);
 			return(1);
@@ -495,7 +495,7 @@ _("out-of-order bmap key (file offset) in inode %" PRIu64 ", %s fork, fsbno %" P
 	if (numrecs > mp->m_bmap_dmxr[1] || (isroot == 0 && numrecs <
 							mp->m_bmap_dmnr[1])) {
 		do_warn(
-_("inode %" PRIu64 " bad # of bmap records (%u, min - %u, max - %u)\n"),
+_("inode %" PRIu64 " bad # of bmap records (%lu, min - %u, max - %u)\n"),
 			ino, numrecs, mp->m_bmap_dmnr[1], mp->m_bmap_dmxr[1]);
 		return(1);
 	}
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 09/12] xfsprogs: Rename XFS_IOC_BULKSTAT to XFS_IOC_BULKSTAT_V5
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (7 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 08/12] xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 10/12] xfsprogs: Enable bulkstat ioctl to support 64-bit extent counters Chandan Babu R
                   ` (2 subsequent siblings)
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This commit renames XFS_IOC_BULKSTAT to XFS_IOC_BULKSTAT_V5 to allow a future
commit to extend bulkstat facility to support 64-bit extent counters. To this
end, this commit also renames xfs_bulkstat->bs_extents field to
xfs_bulkstat->bs_extents32.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 fsr/xfs_fsr.c      | 4 ++--
 io/bulkstat.c      | 2 +-
 libfrog/bulkstat.c | 8 ++++----
 libxfs/xfs_fs.h    | 4 ++--
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c
index bb5d4a2c0..3446944cb 100644
--- a/fsr/xfs_fsr.c
+++ b/fsr/xfs_fsr.c
@@ -606,7 +606,7 @@ cmp(const void *s1, const void *s2)
 		(bs1->bs_version == XFS_BULKSTAT_VERSION_V5 &&
 		bs2->bs_version == XFS_BULKSTAT_VERSION_V5));
 
-	return (bs2->bs_extents - bs1->bs_extents);
+	return (bs2->bs_extents32 - bs1->bs_extents32);
 }
 
 /*
@@ -670,7 +670,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange)
 		for (p = buf, endp = (buf + buflenout); p < endp ; p++) {
 			/* Do some obvious checks now */
 			if (((p->bs_mode & S_IFMT) != S_IFREG) ||
-			     (p->bs_extents < 2))
+			     (p->bs_extents32 < 2))
 				continue;
 
 			ret = open_handle(&file_fd, fshandlep, p,
diff --git a/io/bulkstat.c b/io/bulkstat.c
index 4ae275864..378048379 100644
--- a/io/bulkstat.c
+++ b/io/bulkstat.c
@@ -49,7 +49,7 @@ dump_bulkstat(
 	printf("\tbs_extsize_blks = %"PRIu32"\n", bstat->bs_extsize_blks);
 
 	printf("\tbs_nlink = %"PRIu32"\n", bstat->bs_nlink);
-	printf("\tbs_extents = %"PRIu32"\n", bstat->bs_extents);
+	printf("\tbs_extents = %"PRIu32"\n", bstat->bs_extents32);
 	printf("\tbs_aextents = %"PRIu32"\n", bstat->bs_aextents);
 	printf("\tbs_version = %"PRIu16"\n", bstat->bs_version);
 	printf("\tbs_forkoff = %"PRIu16"\n", bstat->bs_forkoff);
diff --git a/libfrog/bulkstat.c b/libfrog/bulkstat.c
index 195f6ea05..5a967d4b1 100644
--- a/libfrog/bulkstat.c
+++ b/libfrog/bulkstat.c
@@ -61,7 +61,7 @@ xfrog_bulkstat_single5(
 		return ret;
 
 	req->hdr.flags = flags;
-	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT, req);
+	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT_V5, req);
 	if (ret) {
 		ret = -errno;
 		goto free;
@@ -260,7 +260,7 @@ xfrog_bulkstat5(
 {
 	int			ret;
 
-	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT, req);
+	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT_V5, req);
 	if (ret)
 		return -errno;
 	return 0;
@@ -366,7 +366,7 @@ xfrog_bulkstat_v5_to_v1(
 	bs1->bs_blocks = bs5->bs_blocks;
 	bs1->bs_xflags = bs5->bs_xflags;
 	bs1->bs_extsize = cvt_off_fsb_to_b(xfd, bs5->bs_extsize_blks);
-	bs1->bs_extents = bs5->bs_extents;
+	bs1->bs_extents = bs5->bs_extents32;
 	bs1->bs_gen = bs5->bs_gen;
 	bs1->bs_projid_lo = bs5->bs_projectid & 0xFFFF;
 	bs1->bs_forkoff = bs5->bs_forkoff;
@@ -407,7 +407,7 @@ xfrog_bulkstat_v1_to_v5(
 	bs5->bs_blocks = bs1->bs_blocks;
 	bs5->bs_xflags = bs1->bs_xflags;
 	bs5->bs_extsize_blks = cvt_b_to_off_fsbt(xfd, bs1->bs_extsize);
-	bs5->bs_extents = bs1->bs_extents;
+	bs5->bs_extents32 = bs1->bs_extents;
 	bs5->bs_gen = bs1->bs_gen;
 	bs5->bs_projectid = bstat_get_projid(bs1);
 	bs5->bs_forkoff = bs1->bs_forkoff;
diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index 2594fb647..d760a9695 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -394,7 +394,7 @@ struct xfs_bulkstat {
 	uint32_t	bs_extsize_blks; /* extent size hint, blocks	*/
 
 	uint32_t	bs_nlink;	/* number of links		*/
-	uint32_t	bs_extents;	/* number of extents		*/
+	uint32_t	bs_extents32;	/* number of extents		*/
 	uint32_t	bs_aextents;	/* attribute number of extents	*/
 	uint16_t	bs_version;	/* structure version		*/
 	uint16_t	bs_forkoff;	/* inode fork offset in bytes	*/
@@ -853,7 +853,7 @@ struct xfs_scrub_metadata {
 #define XFS_IOC_FSGEOMETRY_V4	     _IOR ('X', 124, struct xfs_fsop_geom_v4)
 #define XFS_IOC_GOINGDOWN	     _IOR ('X', 125, uint32_t)
 #define XFS_IOC_FSGEOMETRY	     _IOR ('X', 126, struct xfs_fsop_geom)
-#define XFS_IOC_BULKSTAT	     _IOR ('X', 127, struct xfs_bulkstat_req)
+#define XFS_IOC_BULKSTAT_V5	     _IOR ('X', 127, struct xfs_bulkstat_req)
 #define XFS_IOC_INUMBERS	     _IOR ('X', 128, struct xfs_inumbers_req)
 /*	FIEXCHANGE_RANGE ----------- hoisted 129	 */
 /*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 10/12] xfsprogs: Enable bulkstat ioctl to support 64-bit extent counters
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (8 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 09/12] xfsprogs: Rename XFS_IOC_BULKSTAT to XFS_IOC_BULKSTAT_V5 Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths Chandan Babu R
  2021-07-26 11:47 ` [PATCH V2 12/12] xfsprogs: Add extcnt64bit mkfs option Chandan Babu R
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This commit adds XFS_IOC_BULKSTAT_V6 to support 64-bit inode extent
counters. The new field xfs_bulkstat->bs_extents64 is added to hold data
extent count for filesystems supporting 64-bit data extent counters.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 fsr/xfs_fsr.c      |   9 +-
 io/bulkstat.c      |  10 +-
 libfrog/bulkstat.c | 260 ++++++++++++++++++++++++++-------------------
 libfrog/bulkstat.h |   7 +-
 libfrog/fsgeom.h   |   5 +-
 libxfs/xfs_fs.h    |   7 +-
 6 files changed, 175 insertions(+), 123 deletions(-)

diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c
index 3446944cb..db917d015 100644
--- a/fsr/xfs_fsr.c
+++ b/fsr/xfs_fsr.c
@@ -6,6 +6,7 @@
 
 #include "libxfs.h"
 #include "xfs.h"
+#include "xfs/xfs_fs.h"
 #include "xfs_types.h"
 #include "jdm.h"
 #include "xfs_bmap_btree.h"
@@ -604,9 +605,11 @@ cmp(const void *s1, const void *s2)
 	ASSERT((bs1->bs_version == XFS_BULKSTAT_VERSION_V1 &&
 		bs2->bs_version == XFS_BULKSTAT_VERSION_V1) ||
 		(bs1->bs_version == XFS_BULKSTAT_VERSION_V5 &&
-		bs2->bs_version == XFS_BULKSTAT_VERSION_V5));
+		bs2->bs_version == XFS_BULKSTAT_VERSION_V5) ||
+		(bs1->bs_version == XFS_BULKSTAT_VERSION_V6 &&
+		bs2->bs_version == XFS_BULKSTAT_VERSION_V6));
 
-	return (bs2->bs_extents32 - bs1->bs_extents32);
+	return (bs2->bs_extents64 - bs1->bs_extents64);
 }
 
 /*
@@ -670,7 +673,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange)
 		for (p = buf, endp = (buf + buflenout); p < endp ; p++) {
 			/* Do some obvious checks now */
 			if (((p->bs_mode & S_IFMT) != S_IFREG) ||
-			     (p->bs_extents32 < 2))
+			     (p->bs_extents64 < 2))
 				continue;
 
 			ret = open_handle(&file_fd, fshandlep, p,
diff --git a/io/bulkstat.c b/io/bulkstat.c
index 378048379..92fbbaadb 100644
--- a/io/bulkstat.c
+++ b/io/bulkstat.c
@@ -49,7 +49,7 @@ dump_bulkstat(
 	printf("\tbs_extsize_blks = %"PRIu32"\n", bstat->bs_extsize_blks);
 
 	printf("\tbs_nlink = %"PRIu32"\n", bstat->bs_nlink);
-	printf("\tbs_extents = %"PRIu32"\n", bstat->bs_extents32);
+	printf("\tbs_extents = %"PRIu64"\n", bstat->bs_extents64);
 	printf("\tbs_aextents = %"PRIu32"\n", bstat->bs_aextents);
 	printf("\tbs_version = %"PRIu16"\n", bstat->bs_version);
 	printf("\tbs_forkoff = %"PRIu16"\n", bstat->bs_forkoff);
@@ -86,6 +86,9 @@ set_xfd_flags(
 	case 5:
 		xfd->flags |= XFROG_FLAG_BULKSTAT_FORCE_V5;
 		break;
+	case 6:
+		xfd->flags |= XFROG_FLAG_BULKSTAT_FORCE_V6;
+		break;
 	default:
 		break;
 	}
@@ -153,8 +156,9 @@ bulkstat_f(
 				perror(optarg);
 				return 1;
 			}
-			if (ver != 1 && ver != 5) {
-				fprintf(stderr, "version must be 1 or 5.\n");
+			if (ver != 1 && ver != 5 && ver != 6) {
+				fprintf(stderr,
+					"version must be 1 or 5 or 6.\n");
 				return 1;
 			}
 			break;
diff --git a/libfrog/bulkstat.c b/libfrog/bulkstat.c
index 5a967d4b1..b169a1334 100644
--- a/libfrog/bulkstat.c
+++ b/libfrog/bulkstat.c
@@ -5,6 +5,7 @@
  */
 #include <string.h>
 #include <strings.h>
+#include <assert.h>
 #include "xfs.h"
 #include "fsgeom.h"
 #include "bulkstat.h"
@@ -42,6 +43,42 @@ xfrog_bulkstat_prep_v1_emulation(
 	return xfd_prepare_geometry(xfd);
 }
 
+/* Bulkstat a single inode using v6 ioctl. */
+static int
+xfrog_bulkstat_single6(
+	struct xfs_fd			*xfd,
+	uint64_t			ino,
+	unsigned int			flags,
+	struct xfs_bulkstat		*bulkstat)
+{
+	struct xfs_bulkstat_req		*req;
+	int				ret;
+
+	if (flags & ~(XFS_BULK_IREQ_SPECIAL))
+		return -EINVAL;
+
+	ret = xfrog_bulkstat_alloc_req(1, ino, &req);
+	if (ret)
+		return ret;
+
+	req->hdr.flags = flags;
+	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT_V6, req);
+	if (ret) {
+		ret = -errno;
+		goto free;
+	}
+
+	if (req->hdr.ocount == 0) {
+		ret = -ENOENT;
+		goto free;
+	}
+
+	memcpy(bulkstat, req->bulkstat, sizeof(struct xfs_bulkstat));
+free:
+	free(req);
+	return ret;
+}
+
 /* Bulkstat a single inode using v5 ioctl. */
 static int
 xfrog_bulkstat_single5(
@@ -73,6 +110,9 @@ xfrog_bulkstat_single5(
 	}
 
 	memcpy(bulkstat, req->bulkstat, sizeof(struct xfs_bulkstat));
+
+	xfrog_bulkstat_v5_to_v6(bulkstat);
+
 free:
 	free(req);
 	return ret;
@@ -104,34 +144,46 @@ xfrog_bulkstat_single1(
 	if (error)
 		return -errno;
 
-	xfrog_bulkstat_v1_to_v5(xfd, bulkstat, &bstat);
+	xfrog_bulkstat_v1_to_v6(xfd, bulkstat, &bstat);
 	return 0;
 }
 
 /* Bulkstat a single inode.  Returns zero or a negative error code. */
 int
 xfrog_bulkstat_single(
-	struct xfs_fd			*xfd,
-	uint64_t			ino,
-	unsigned int			flags,
-	struct xfs_bulkstat		*bulkstat)
+	struct xfs_fd		*xfd,
+	uint64_t		ino,
+	unsigned int		flags,
+	struct xfs_bulkstat	*bulkstat)
 {
-	int				error;
+	unsigned int		xfd_flags = 0;
+	int			error;
 
 	if (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V1)
 		goto try_v1;
 
+	if (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V5)
+		goto try_v5;
+
+	error = xfrog_bulkstat_single6(xfd, ino, flags, bulkstat);
+	if (error == 0 || xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V6)
+		return error;
+
+        if (error == -EOPNOTSUPP && error == -ENOTTY)
+		xfd_flags = XFROG_FLAG_BULKSTAT_FORCE_V5;
+
+try_v5:
 	error = xfrog_bulkstat_single5(xfd, ino, flags, bulkstat);
-	if (error == 0 || (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V5))
+	if (error == 0) {
+		xfd->flags |= xfd_flags;
+		return 0;
+	}
+
+	if (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V5)
 		return error;
 
-	/* If the v5 ioctl wasn't found, we punt to v1. */
-	switch (error) {
-	case -EOPNOTSUPP:
-	case -ENOTTY:
+	if (error == -EOPNOTSUPP && error == -ENOTTY)
 		xfd->flags |= XFROG_FLAG_BULKSTAT_FORCE_V1;
-		break;
-	}
 
 try_v1:
 	return xfrog_bulkstat_single1(xfd, ino, flags, bulkstat);
@@ -200,14 +252,14 @@ xfrog_bulk_req_v1_cleanup(
 	struct xfs_fsop_bulkreq	*bulkreq,
 	size_t			v1_rec_size,
 	uint64_t		(*v1_ino)(void *v1_rec),
-	void			*v5_records,
-	size_t			v5_rec_size,
+	void			*v6_records,
+	size_t			v6_rec_size,
 	void			(*cvt)(struct xfs_fd *xfd, void *v5, void *v1),
 	unsigned int		startino_adj,
 	int			error)
 {
 	void			*v1_rec = bulkreq->ubuffer;
-	void			*v5_rec = v5_records;
+	void			*v6_rec = v6_records;
 	unsigned int		i;
 
 	if (error == -ECANCELED) {
@@ -224,7 +276,7 @@ xfrog_bulk_req_v1_cleanup(
 	 */
 	for (i = 0;
 	     i < hdr->ocount;
-	     i++, v1_rec += v1_rec_size, v5_rec += v5_rec_size) {
+	     i++, v1_rec += v1_rec_size, v6_rec += v6_rec_size) {
 		uint64_t	ino = v1_ino(v1_rec);
 
 		/* Stop if we hit a different AG. */
@@ -233,7 +285,7 @@ xfrog_bulk_req_v1_cleanup(
 			hdr->ocount = i;
 			break;
 		}
-		cvt(xfd, v5_rec, v1_rec);
+		cvt(xfd, v6_rec, v1_rec);
 		hdr->ino = ino + startino_adj;
 	}
 
@@ -247,9 +299,23 @@ static uint64_t xfrog_bstat_ino(void *v1_rec)
 	return ((struct xfs_bstat *)v1_rec)->bs_ino;
 }
 
-static void xfrog_bstat_cvt(struct xfs_fd *xfd, void *v5, void *v1)
+static void xfrog_bstat_cvt(struct xfs_fd *xfd, void *v6, void *v1)
 {
-	xfrog_bulkstat_v1_to_v5(xfd, v5, v1);
+	xfrog_bulkstat_v1_to_v6(xfd, v6, v1);
+}
+
+/* Bulkstat a bunch of inodes using the v6 interface. */
+static int
+xfrog_bulkstat6(
+	struct xfs_fd		*xfd,
+	struct xfs_bulkstat_req	*req)
+{
+	int			ret;
+
+	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT_V6, req);
+	if (ret)
+		return -errno;
+	return 0;
 }
 
 /* Bulkstat a bunch of inodes using the v5 interface. */
@@ -258,11 +324,17 @@ xfrog_bulkstat5(
 	struct xfs_fd		*xfd,
 	struct xfs_bulkstat_req	*req)
 {
+	struct xfs_bulk_ireq	*hdr = &req->hdr;
 	int			ret;
+	int			i;
 
 	ret = ioctl(xfd->fd, XFS_IOC_BULKSTAT_V5, req);
 	if (ret)
 		return -errno;
+
+	for (i = 0; i < hdr->ocount; i++)
+		xfrog_bulkstat_v5_to_v6(&req->bulkstat[i]);
+
 	return 0;
 }
 
@@ -303,118 +375,86 @@ xfrog_bulkstat(
 	struct xfs_fd		*xfd,
 	struct xfs_bulkstat_req	*req)
 {
+	unsigned int		xfd_flags = 0;
 	int			error;
 
 	if (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V1)
 		goto try_v1;
 
-	error = xfrog_bulkstat5(xfd, req);
-	if (error == 0 || (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V5))
+	if (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V5)
+		goto try_v5;
+
+        error = xfrog_bulkstat6(xfd, req);
+	if (error == 0 || xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V6)
 		return error;
 
-	/* If the v5 ioctl wasn't found, we punt to v1. */
-	switch (error) {
-	case -EOPNOTSUPP:
-	case -ENOTTY:
-		xfd->flags |= XFROG_FLAG_BULKSTAT_FORCE_V1;
-		break;
+	if (error == -EOPNOTSUPP || error == -ENOTTY)
+		xfd_flags = XFROG_FLAG_BULKSTAT_FORCE_V5;
+
+try_v5:
+        error = xfrog_bulkstat5(xfd, req);
+	if (error == 0) {
+		xfd->flags |= xfd_flags;
+		return 0;
 	}
 
+	if (xfd->flags & XFROG_FLAG_BULKSTAT_FORCE_V5)
+		return error;
+
+	if (error == -EOPNOTSUPP || error == -ENOTTY)
+		xfd->flags |= XFROG_FLAG_BULKSTAT_FORCE_V1;
+
 try_v1:
 	return xfrog_bulkstat1(xfd, req);
 }
 
-static bool
-time_too_big(
-	uint64_t	time)
+/* Convert bulkstat data from v5 format to v6 format. */
+void
+xfrog_bulkstat_v5_to_v6(
+	struct xfs_bulkstat		*bs)
 {
-	time_t		TIME_MAX;
+	bs->bs_version = XFS_BULKSTAT_VERSION_V5;
 
-	memset(&TIME_MAX, 0xFF, sizeof(TIME_MAX));
-	return time > TIME_MAX;
-}
-
-/* Convert bulkstat data from v5 format to v1 format. */
-int
-xfrog_bulkstat_v5_to_v1(
-	struct xfs_fd			*xfd,
-	struct xfs_bstat		*bs1,
-	const struct xfs_bulkstat	*bs5)
-{
-	if (bs5->bs_aextents > UINT16_MAX ||
-	    cvt_off_fsb_to_b(xfd, bs5->bs_extsize_blks) > UINT32_MAX ||
-	    cvt_off_fsb_to_b(xfd, bs5->bs_cowextsize_blks) > UINT32_MAX ||
-	    time_too_big(bs5->bs_atime) ||
-	    time_too_big(bs5->bs_ctime) ||
-	    time_too_big(bs5->bs_mtime))
-		return -ERANGE;
-
-	bs1->bs_ino = bs5->bs_ino;
-	bs1->bs_mode = bs5->bs_mode;
-	bs1->bs_nlink = bs5->bs_nlink;
-	bs1->bs_uid = bs5->bs_uid;
-	bs1->bs_gid = bs5->bs_gid;
-	bs1->bs_rdev = bs5->bs_rdev;
-	bs1->bs_blksize = bs5->bs_blksize;
-	bs1->bs_size = bs5->bs_size;
-	bs1->bs_atime.tv_sec = bs5->bs_atime;
-	bs1->bs_mtime.tv_sec = bs5->bs_mtime;
-	bs1->bs_ctime.tv_sec = bs5->bs_ctime;
-	bs1->bs_atime.tv_nsec = bs5->bs_atime_nsec;
-	bs1->bs_mtime.tv_nsec = bs5->bs_mtime_nsec;
-	bs1->bs_ctime.tv_nsec = bs5->bs_ctime_nsec;
-	bs1->bs_blocks = bs5->bs_blocks;
-	bs1->bs_xflags = bs5->bs_xflags;
-	bs1->bs_extsize = cvt_off_fsb_to_b(xfd, bs5->bs_extsize_blks);
-	bs1->bs_extents = bs5->bs_extents32;
-	bs1->bs_gen = bs5->bs_gen;
-	bs1->bs_projid_lo = bs5->bs_projectid & 0xFFFF;
-	bs1->bs_forkoff = bs5->bs_forkoff;
-	bs1->bs_projid_hi = bs5->bs_projectid >> 16;
-	bs1->bs_sick = bs5->bs_sick;
-	bs1->bs_checked = bs5->bs_checked;
-	bs1->bs_cowextsize = cvt_off_fsb_to_b(xfd, bs5->bs_cowextsize_blks);
-	bs1->bs_dmevmask = 0;
-	bs1->bs_dmstate = 0;
-	bs1->bs_aextents = bs5->bs_aextents;
-	return 0;
+        assert(bs->bs_extents64 == 0);
+	bs->bs_extents64 = bs->bs_extents32;
+	bs->bs_extents32 = 0;
 }
 
 /* Convert bulkstat data from v1 format to v5 format. */
 void
-xfrog_bulkstat_v1_to_v5(
+xfrog_bulkstat_v1_to_v6(
 	struct xfs_fd			*xfd,
-	struct xfs_bulkstat		*bs5,
+	struct xfs_bulkstat		*bs6,
 	const struct xfs_bstat		*bs1)
 {
-	memset(bs5, 0, sizeof(*bs5));
-	bs5->bs_version = XFS_BULKSTAT_VERSION_V1;
-
-	bs5->bs_ino = bs1->bs_ino;
-	bs5->bs_mode = bs1->bs_mode;
-	bs5->bs_nlink = bs1->bs_nlink;
-	bs5->bs_uid = bs1->bs_uid;
-	bs5->bs_gid = bs1->bs_gid;
-	bs5->bs_rdev = bs1->bs_rdev;
-	bs5->bs_blksize = bs1->bs_blksize;
-	bs5->bs_size = bs1->bs_size;
-	bs5->bs_atime = bs1->bs_atime.tv_sec;
-	bs5->bs_mtime = bs1->bs_mtime.tv_sec;
-	bs5->bs_ctime = bs1->bs_ctime.tv_sec;
-	bs5->bs_atime_nsec = bs1->bs_atime.tv_nsec;
-	bs5->bs_mtime_nsec = bs1->bs_mtime.tv_nsec;
-	bs5->bs_ctime_nsec = bs1->bs_ctime.tv_nsec;
-	bs5->bs_blocks = bs1->bs_blocks;
-	bs5->bs_xflags = bs1->bs_xflags;
-	bs5->bs_extsize_blks = cvt_b_to_off_fsbt(xfd, bs1->bs_extsize);
-	bs5->bs_extents32 = bs1->bs_extents;
-	bs5->bs_gen = bs1->bs_gen;
-	bs5->bs_projectid = bstat_get_projid(bs1);
-	bs5->bs_forkoff = bs1->bs_forkoff;
-	bs5->bs_sick = bs1->bs_sick;
-	bs5->bs_checked = bs1->bs_checked;
-	bs5->bs_cowextsize_blks = cvt_b_to_off_fsbt(xfd, bs1->bs_cowextsize);
-	bs5->bs_aextents = bs1->bs_aextents;
+	memset(bs6, 0, sizeof(*bs6));
+	bs6->bs_version = XFS_BULKSTAT_VERSION_V1;
+
+	bs6->bs_ino = bs1->bs_ino;
+	bs6->bs_mode = bs1->bs_mode;
+	bs6->bs_nlink = bs1->bs_nlink;
+	bs6->bs_uid = bs1->bs_uid;
+	bs6->bs_gid = bs1->bs_gid;
+	bs6->bs_rdev = bs1->bs_rdev;
+	bs6->bs_blksize = bs1->bs_blksize;
+	bs6->bs_size = bs1->bs_size;
+	bs6->bs_atime = bs1->bs_atime.tv_sec;
+	bs6->bs_mtime = bs1->bs_mtime.tv_sec;
+	bs6->bs_ctime = bs1->bs_ctime.tv_sec;
+	bs6->bs_atime_nsec = bs1->bs_atime.tv_nsec;
+	bs6->bs_mtime_nsec = bs1->bs_mtime.tv_nsec;
+	bs6->bs_ctime_nsec = bs1->bs_ctime.tv_nsec;
+	bs6->bs_blocks = bs1->bs_blocks;
+	bs6->bs_xflags = bs1->bs_xflags;
+	bs6->bs_extsize_blks = cvt_b_to_off_fsbt(xfd, bs1->bs_extsize);
+	bs6->bs_extents64 = bs1->bs_extents;
+	bs6->bs_gen = bs1->bs_gen;
+	bs6->bs_projectid = bstat_get_projid(bs1);
+	bs6->bs_forkoff = bs1->bs_forkoff;
+	bs6->bs_sick = bs1->bs_sick;
+	bs6->bs_checked = bs1->bs_checked;
+	bs6->bs_cowextsize_blks = cvt_b_to_off_fsbt(xfd, bs1->bs_cowextsize);
+	bs6->bs_aextents = bs1->bs_aextents;
 }
 
 /* Allocate a bulkstat request.  Returns zero or a negative error code. */
diff --git a/libfrog/bulkstat.h b/libfrog/bulkstat.h
index 2f440b14f..504ceda9c 100644
--- a/libfrog/bulkstat.h
+++ b/libfrog/bulkstat.h
@@ -18,10 +18,9 @@ int xfrog_bulkstat(struct xfs_fd *xfd, struct xfs_bulkstat_req *req);
 
 int xfrog_bulkstat_alloc_req(uint32_t nr, uint64_t startino,
 		struct xfs_bulkstat_req **preq);
-int xfrog_bulkstat_v5_to_v1(struct xfs_fd *xfd, struct xfs_bstat *bs1,
-		const struct xfs_bulkstat *bstat);
-void xfrog_bulkstat_v1_to_v5(struct xfs_fd *xfd, struct xfs_bulkstat *bstat,
-		const struct xfs_bstat *bs1);
+void xfrog_bulkstat_v1_to_v6(struct xfs_fd *xfd, struct xfs_bulkstat *bstat,
+                             const struct xfs_bstat *bs1);
+void xfrog_bulkstat_v5_to_v6(struct xfs_bulkstat *bs);
 
 void xfrog_bulkstat_set_ag(struct xfs_bulkstat_req *req, uint32_t agno);
 
diff --git a/libfrog/fsgeom.h b/libfrog/fsgeom.h
index bef864fce..423b14ea9 100644
--- a/libfrog/fsgeom.h
+++ b/libfrog/fsgeom.h
@@ -48,7 +48,10 @@ struct xfs_fd {
 #define XFROG_FLAG_BULKSTAT_FORCE_V1	(1 << 0)
 
 /* Only use v5 bulkstat/inumbers ioctls. */
-#define XFROG_FLAG_BULKSTAT_FORCE_V5	(1 << 1)
+#define XFROG_FLAG_BULKSTAT_FORCE_V5 (1 << 1)
+
+/* Only use v6 bulkstat ioctls. */
+#define XFROG_FLAG_BULKSTAT_FORCE_V6	(1 << 2)
 
 /* Only use the old XFS swapext ioctl for file data exchanges. */
 #define XFROG_FLAG_FORCE_SWAPEXT	(1 << 2)
diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index d760a9695..bfa81af82 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -394,7 +394,7 @@ struct xfs_bulkstat {
 	uint32_t	bs_extsize_blks; /* extent size hint, blocks	*/
 
 	uint32_t	bs_nlink;	/* number of links		*/
-	uint32_t	bs_extents32;	/* number of extents		*/
+	uint32_t	bs_extents32;	/* number of extents; v5 only	*/
 	uint32_t	bs_aextents;	/* attribute number of extents	*/
 	uint16_t	bs_version;	/* structure version		*/
 	uint16_t	bs_forkoff;	/* inode fork offset in bytes	*/
@@ -403,12 +403,14 @@ struct xfs_bulkstat {
 	uint16_t	bs_checked;	/* checked inode metadata	*/
 	uint16_t	bs_mode;	/* type and mode		*/
 	uint16_t	bs_pad2;	/* zeroed			*/
+	uint64_t	bs_extents64;	/* number of extents; v6 only	*/
 
-	uint64_t	bs_pad[7];	/* zeroed			*/
+	uint64_t	bs_pad[6];	/* zeroed			*/
 };
 
 #define XFS_BULKSTAT_VERSION_V1	(1)
 #define XFS_BULKSTAT_VERSION_V5	(5)
+#define XFS_BULKSTAT_VERSION_V6 (6)
 
 /* bs_sick flags */
 #define XFS_BS_SICK_INODE	(1 << 0)  /* inode core */
@@ -856,6 +858,7 @@ struct xfs_scrub_metadata {
 #define XFS_IOC_BULKSTAT_V5	     _IOR ('X', 127, struct xfs_bulkstat_req)
 #define XFS_IOC_INUMBERS	     _IOR ('X', 128, struct xfs_inumbers_req)
 /*	FIEXCHANGE_RANGE ----------- hoisted 129	 */
+#define XFS_IOC_BULKSTAT_V6	     _IOR ('X', 130, struct xfs_bulkstat_req)
 /*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */
 
 
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (9 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 10/12] xfsprogs: Enable bulkstat ioctl to support 64-bit extent counters Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  2021-07-28 19:11   ` Darrick J. Wong
  2021-07-26 11:47 ` [PATCH V2 12/12] xfsprogs: Add extcnt64bit mkfs option Chandan Babu R
  11 siblings, 1 reply; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

This commit adds a new 64-bit per-inode data extent counter. However the
maximum number of extents that a data fork can hold is limited to 2^48
extents. This feature is available only when
XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT feature bit is enabled on the
filesystem. Also, enabling this feature bit causes attr fork extent counter to
use the 32-bit extent counter that was previously used to hold the data fork
extent counter. This implies that the attr fork can now occupy a maximum of
2^32 extents.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 db/field.c                 |  4 ----
 db/field.h                 |  2 --
 db/inode.c                 | 30 +++++++++++++++++++++++++++---
 include/libxlog.h          |  6 ++++--
 libxfs/xfs_bmap.c          |  8 +++-----
 libxfs/xfs_format.h        | 15 +++++++++++++--
 libxfs/xfs_inode_buf.c     | 30 +++++++++++++++++++++++++-----
 libxfs/xfs_inode_fork.h    | 18 ++++++++++++++----
 libxfs/xfs_log_format.h    |  3 ++-
 logprint/log_misc.c        | 23 ++++++++++++++++++-----
 logprint/log_print_all.c   | 34 +++++++++++++++++++++++++++-------
 logprint/log_print_trans.c |  2 +-
 repair/bmap_repair.c       | 10 ++++++++--
 repair/dinode.c            | 15 ++++++++++++---
 14 files changed, 154 insertions(+), 46 deletions(-)

diff --git a/db/field.c b/db/field.c
index 51268938a..1e274ffc4 100644
--- a/db/field.c
+++ b/db/field.c
@@ -25,8 +25,6 @@
 #include "symlink.h"
 
 const ftattr_t	ftattrtab[] = {
-	{ FLDT_AEXTNUM, "aextnum", fp_num, "%d", SI(bitsz(xfs_aextnum_t)),
-	  FTARG_SIGNED, NULL, NULL },
 	{ FLDT_AGBLOCK, "agblock", fp_num, "%u", SI(bitsz(xfs_agblock_t)),
 	  FTARG_DONULL, fa_agblock, NULL },
 	{ FLDT_AGBLOCKNZ, "agblocknz", fp_num, "%u", SI(bitsz(xfs_agblock_t)),
@@ -300,8 +298,6 @@ const ftattr_t	ftattrtab[] = {
 	  FTARG_DONULL, fa_drtbno, NULL },
 	{ FLDT_EXTLEN, "extlen", fp_num, "%u", SI(bitsz(xfs_extlen_t)), 0, NULL,
 	  NULL },
-	{ FLDT_EXTNUM, "extnum", fp_num, "%d", SI(bitsz(xfs_extnum_t)),
-	  FTARG_SIGNED, NULL, NULL },
 	{ FLDT_FSIZE, "fsize", fp_num, "%lld", SI(bitsz(xfs_fsize_t)),
 	  FTARG_SIGNED, NULL, NULL },
 	{ FLDT_INO, "ino", fp_num, "%llu", SI(bitsz(xfs_ino_t)), FTARG_DONULL,
diff --git a/db/field.h b/db/field.h
index 387c189ec..614fd0ab4 100644
--- a/db/field.h
+++ b/db/field.h
@@ -5,7 +5,6 @@
  */
 
 typedef enum fldt	{
-	FLDT_AEXTNUM,
 	FLDT_AGBLOCK,
 	FLDT_AGBLOCKNZ,
 	FLDT_AGF,
@@ -143,7 +142,6 @@ typedef enum fldt	{
 	FLDT_DRFSBNO,
 	FLDT_DRTBNO,
 	FLDT_EXTLEN,
-	FLDT_EXTNUM,
 	FLDT_FSIZE,
 	FLDT_INO,
 	FLDT_INOBT,
diff --git a/db/inode.c b/db/inode.c
index 27251f02f..6f941184c 100644
--- a/db/inode.c
+++ b/db/inode.c
@@ -37,6 +37,8 @@ static int	inode_u_muuid_count(void *obj, int startoff);
 static int	inode_u_sfdir2_count(void *obj, int startoff);
 static int	inode_u_sfdir3_count(void *obj, int startoff);
 static int	inode_u_symlink_count(void *obj, int startoff);
+static int	inode_v3_64bitext_count(void *obj, int startoff);
+static int	inode_v3_pad2_count(void *obj, int startoff);
 
 static const cmdinfo_t	inode_cmd =
 	{ "inode", NULL, inode_f, 0, 1, 1, "[inode#]",
@@ -100,8 +102,8 @@ const field_t	inode_core_flds[] = {
 	{ "size", FLDT_FSIZE, OI(COFF(size)), C1, 0, TYP_NONE },
 	{ "nblocks", FLDT_DRFSBNO, OI(COFF(nblocks)), C1, 0, TYP_NONE },
 	{ "extsize", FLDT_EXTLEN, OI(COFF(extsize)), C1, 0, TYP_NONE },
-	{ "nextents32", FLDT_EXTNUM, OI(COFF(nextents32)), C1, 0, TYP_NONE },
-	{ "nextents16", FLDT_AEXTNUM, OI(COFF(nextents16)), C1, 0, TYP_NONE },
+	{ "nextents32", FLDT_UINT32D, OI(COFF(nextents32)), C1, 0, TYP_NONE },
+	{ "nextents16", FLDT_UINT16D, OI(COFF(nextents16)), C1, 0, TYP_NONE },
 	{ "forkoff", FLDT_UINT8D, OI(COFF(forkoff)), C1, 0, TYP_NONE },
 	{ "aformat", FLDT_DINODE_FMT, OI(COFF(aformat)), C1, 0, TYP_NONE },
 	{ "dmevmask", FLDT_UINT32X, OI(COFF(dmevmask)), C1, 0, TYP_NONE },
@@ -162,7 +164,10 @@ const field_t	inode_v3_flds[] = {
 	{ "lsn", FLDT_UINT64X, OI(COFF(lsn)), C1, 0, TYP_NONE },
 	{ "flags2", FLDT_UINT64X, OI(COFF(flags2)), C1, 0, TYP_NONE },
 	{ "cowextsize", FLDT_EXTLEN, OI(COFF(cowextsize)), C1, 0, TYP_NONE },
-	{ "pad2", FLDT_UINT8X, OI(OFF(pad2)), CI(12), FLD_ARRAY|FLD_SKIPALL, TYP_NONE },
+	{ "nextents64", FLDT_UINT64D, OI(COFF(nextents64)),
+	  inode_v3_64bitext_count, FLD_COUNT, TYP_NONE },
+	{ "pad2", FLDT_UINT8X, OI(OFF(pad2)), inode_v3_pad2_count,
+	  FLD_ARRAY|FLD_COUNT|FLD_SKIPALL, TYP_NONE },
 	{ "crtime", FLDT_TIMESTAMP, OI(COFF(crtime)), C1, 0, TYP_NONE },
 	{ "inumber", FLDT_INO, OI(COFF(ino)), C1, 0, TYP_NONE },
 	{ "uuid", FLDT_UUID, OI(COFF(uuid)), C1, 0, TYP_NONE },
@@ -410,6 +415,25 @@ inode_core_projid_count(
 	return dic->di_version >= 2;
 }
 
+static int
+inode_v3_64bitext_count(
+	void		*obj,
+	int		startoff)
+{
+	return xfs_sb_version_hasextcount_64bit(&mp->m_sb);
+}
+
+static int
+inode_v3_pad2_count(
+	void		*obj,
+	int		startoff)
+{
+	if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+		return 4;
+	else
+		return 12;
+}
+
 static int
 inode_f(
 	int		argc,
diff --git a/include/libxlog.h b/include/libxlog.h
index adaa9963c..fe30481cf 100644
--- a/include/libxlog.h
+++ b/include/libxlog.h
@@ -89,13 +89,15 @@ extern int	xlog_find_tail(struct xlog *log, xfs_daddr_t *head_blk,
 
 extern int	xlog_recover(struct xlog *log, int readonly);
 extern void	xlog_recover_print_data(char *p, int len);
-extern void	xlog_recover_print_logitem(struct xlog_recover_item *item);
+extern void	xlog_recover_print_logitem(struct xlog *log,
+			struct xlog_recover_item *item);
 extern void	xlog_recover_print_trans_head(struct xlog_recover *tr);
 extern int	xlog_print_find_oldest(struct xlog *log, xfs_daddr_t *last_blk);
 
 /* for transactional view */
 extern void	xlog_recover_print_trans_head(struct xlog_recover *tr);
-extern void	xlog_recover_print_trans(struct xlog_recover *trans,
+extern void	xlog_recover_print_trans(struct xlog *log,
+				struct xlog_recover *trans,
 				struct list_head *itemq, int print);
 extern int	xlog_do_recovery_pass(struct xlog *log, xfs_daddr_t head_blk,
 				xfs_daddr_t tail_blk, int pass);
diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index dd60d8105..155d1e935 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -47,18 +47,16 @@ xfs_bmap_compute_maxlevels(
 	int		whichfork)	/* data or attr fork */
 {
 	xfs_extnum_t	maxleafents;	/* max leaf entries possible */
+	uint64_t	maxblocks;	/* max blocks at this level */
 	int		level;		/* btree level */
-	uint		maxblocks;	/* max blocks at this level */
 	int		maxrootrecs;	/* max records in root block */
 	int		minleafrecs;	/* min records in leaf block */
 	int		minnoderecs;	/* min records in node block */
 	int		sz;		/* root block size */
 
 	/*
-	 * The maximum number of extents in a file, hence the maximum number of
-	 * leaf entries, is controlled by the size of the on-disk extent count,
-	 * either a signed 32-bit number for the data fork, or a signed 16-bit
-	 * number for the attr fork.
+	 * The maximum number of extents in a fork, hence the maximum number of
+         * leaf entries, is controlled by the size of the on-disk extent count.
 	 *
 	 * Note that we can no longer assume that if we are in ATTR1 that the
 	 * fork offset of all the inodes will be
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index 6564bc135..db3085974 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -485,13 +485,15 @@ xfs_sb_has_ro_compat_feature(
 #define XFS_SB_FEAT_INCOMPAT_BIGTIME	(1 << 3)	/* large timestamps */
 #define XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR (1 << 4)	/* needs xfs_repair */
 #define XFS_SB_FEAT_INCOMPAT_METADIR	(1 << 5)	/* metadata dir tree */
+#define XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT (1 << 6) 	/* 64-bit inode fork extent counters */
 #define XFS_SB_FEAT_INCOMPAT_ALL \
 		(XFS_SB_FEAT_INCOMPAT_FTYPE|	\
 		 XFS_SB_FEAT_INCOMPAT_SPINODES|	\
 		 XFS_SB_FEAT_INCOMPAT_META_UUID| \
 		 XFS_SB_FEAT_INCOMPAT_BIGTIME| \
 		 XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR| \
-		 XFS_SB_FEAT_INCOMPAT_METADIR)
+		 XFS_SB_FEAT_INCOMPAT_METADIR| \
+		 XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT)
 
 #define XFS_SB_FEAT_INCOMPAT_UNKNOWN	~XFS_SB_FEAT_INCOMPAT_ALL
 static inline bool
@@ -591,6 +593,12 @@ static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp)
 		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID);
 }
 
+static inline bool xfs_sb_version_hasextcount_64bit(struct xfs_sb *sbp)
+{
+	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
+		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT);
+}
+
 static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
@@ -1057,7 +1065,8 @@ typedef struct xfs_dinode {
 	__be64		di_lsn;		/* flush sequence */
 	__be64		di_flags2;	/* more random flags */
 	__be32		di_cowextsize;	/* basic cow extent size for file */
-	__u8		di_pad2[12];	/* more padding for future expansion */
+	__u8		di_pad2[4];	/* more padding for future expansion */
+	__be64		di_nextents64;	/* 64-bit extent counter */
 
 	/* fields only written to during inode creation */
 	xfs_timestamp_t	di_crtime;	/* time created */
@@ -1113,6 +1122,8 @@ enum xfs_dinode_fmt {
  * Max values for extlen, disk inode's extent counters.
  */
 #define	MAXEXTLEN		((uint32_t)0x1fffff) /* 21 bits */
+#define XFS_IFORK_EXTCNT_MAXU48	((uint64_t)0xffffffffffff) /* Unsigned 48-bits */
+#define XFS_IFORK_EXTCNT_MAXU32	((uint32_t)0xffffffff) 	/* Unsigned 32-bits */
 #define XFS_IFORK_EXTCNT_MAXS32 ((int32_t)0x7fffffff)  /* Signed 32-bits */
 #define XFS_IFORK_EXTCNT_MAXS16 ((int16_t)0x7fff)      /* Signed 16-bits */
 
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 95fd95cc0..25877251f 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -288,6 +288,7 @@ xfs_inode_to_disk(
 	struct xfs_dinode	*to,
 	xfs_lsn_t		lsn)
 {
+	struct xfs_sb		*sbp = &ip->i_mount->m_sb;
 	struct inode		*inode = VFS_I(ip);
 
 	to->di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
@@ -307,11 +308,9 @@ xfs_inode_to_disk(
 	to->di_gen = cpu_to_be32(inode->i_generation);
 	to->di_mode = cpu_to_be16(inode->i_mode);
 
-	to->di_size = cpu_to_be64(ip->i_disk_size);
+        to->di_size = cpu_to_be64(ip->i_disk_size);
 	to->di_nblocks = cpu_to_be64(ip->i_nblocks);
 	to->di_extsize = cpu_to_be32(ip->i_extsize);
-	to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
-	to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
 	to->di_forkoff = ip->i_forkoff;
 	to->di_aformat = xfs_ifork_format(ip->i_afp);
 	to->di_flags = cpu_to_be16(ip->i_diflags);
@@ -331,6 +330,19 @@ xfs_inode_to_disk(
 		to->di_version = 2;
 		to->di_flushiter = cpu_to_be16(ip->i_flushiter);
 	}
+
+	if (xfs_sb_version_hasextcount_64bit(sbp)) {
+		to->di_nextents64 = cpu_to_be64(xfs_ifork_nextents(&ip->i_df));
+		to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(ip->i_afp));
+		/*
+		 * xchk_dinode() passes an uninitialized disk inode. Hence,
+		 * clear di_nextents16 field explicitly.
+		 */
+		to->di_nextents16 = cpu_to_be16(0);
+	} else {
+		to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
+		to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
+	}
 }
 
 static xfs_failaddr_t
@@ -383,14 +395,22 @@ xfs_dfork_nextents(
 	xfs_extnum_t		*nextents)
 {
 	int			error = 0;
+	bool			has_64bit_extcnt;
+
+	has_64bit_extcnt = xfs_sb_version_hasextcount_64bit(&mp->m_sb);
+
+	if (has_64bit_extcnt && dip->di_nextents16 != 0)
+		return -EFSCORRUPTED;
 
 	switch (whichfork) {
 	case XFS_DATA_FORK:
-		*nextents = be32_to_cpu(dip->di_nextents32);
+		*nextents = has_64bit_extcnt ? be64_to_cpu(dip->di_nextents64)
+			: be32_to_cpu(dip->di_nextents32);
 		break;
 
 	case XFS_ATTR_FORK:
-		*nextents = be16_to_cpu(dip->di_nextents16);
+		*nextents = has_64bit_extcnt ? be32_to_cpu(dip->di_nextents32)
+			: be16_to_cpu(dip->di_nextents16);
 		break;
 
 	default:
diff --git a/libxfs/xfs_inode_fork.h b/libxfs/xfs_inode_fork.h
index 1eda21636..cc8145941 100644
--- a/libxfs/xfs_inode_fork.h
+++ b/libxfs/xfs_inode_fork.h
@@ -135,10 +135,20 @@ static inline int8_t xfs_ifork_format(struct xfs_ifork *ifp)
 
 static inline xfs_extnum_t xfs_iext_max(struct xfs_mount *mp, int whichfork)
 {
-	if (whichfork == XFS_DATA_FORK || whichfork == XFS_COW_FORK)
-		return XFS_IFORK_EXTCNT_MAXS32;
-	else
-		return XFS_IFORK_EXTCNT_MAXS16;
+	bool has_64bit_extcnt = xfs_sb_version_hasextcount_64bit(&mp->m_sb);
+
+	switch (whichfork) {
+	case XFS_DATA_FORK:
+	case XFS_COW_FORK:
+		return has_64bit_extcnt ? XFS_IFORK_EXTCNT_MAXU48 : XFS_IFORK_EXTCNT_MAXS32;
+
+	case XFS_ATTR_FORK:
+		return has_64bit_extcnt ? XFS_IFORK_EXTCNT_MAXU32 : XFS_IFORK_EXTCNT_MAXS16;
+
+	default:
+		ASSERT(0);
+		return 0;
+	}
 }
 
 struct xfs_ifork *xfs_ifork_alloc(enum xfs_dinode_fmt format,
diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
index ca8e4ad83..9b5d64708 100644
--- a/libxfs/xfs_log_format.h
+++ b/libxfs/xfs_log_format.h
@@ -420,7 +420,8 @@ struct xfs_log_dinode {
 	xfs_lsn_t	di_lsn;		/* flush sequence */
 	uint64_t	di_flags2;	/* more random flags */
 	uint32_t	di_cowextsize;	/* basic cow extent size for file */
-	uint8_t		di_pad2[12];	/* more padding for future expansion */
+	uint8_t		di_pad2[4];	/* more padding for future expansion */
+	uint64_t	di_nextents64; /* higher part of data fork extent count */
 
 	/* fields only written to during inode creation */
 	xfs_log_timestamp_t di_crtime;	/* time created */
diff --git a/logprint/log_misc.c b/logprint/log_misc.c
index 4e8760c43..1fb580c58 100644
--- a/logprint/log_misc.c
+++ b/logprint/log_misc.c
@@ -438,8 +438,11 @@ xlog_print_trans_qoff(char **ptr, uint len)
 
 static void
 xlog_print_trans_inode_core(
+	struct xfs_mount	*mp,
 	struct xfs_log_dinode	*ip)
 {
+    xfs_extnum_t		nextents;
+
     printf(_("INODE CORE\n"));
     printf(_("magic 0x%hx mode 0%ho version %d format %d\n"),
 	   ip->di_magic, ip->di_mode, (int)ip->di_version,
@@ -450,11 +453,21 @@ xlog_print_trans_inode_core(
 		xlog_extract_dinode_ts(ip->di_atime),
 		xlog_extract_dinode_ts(ip->di_mtime),
 		xlog_extract_dinode_ts(ip->di_ctime));
-    printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%x\n"),
+
+    if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+	    nextents = ip->di_nextents64;
+    else
+	    nextents = ip->di_nextents32;
+    printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%lx\n"),
 	   (unsigned long long)ip->di_size, (unsigned long long)ip->di_nblocks,
-	   ip->di_extsize, ip->di_nextents32);
-    printf(_("naextents 0x%x forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
-	   ip->di_nextents16, (int)ip->di_forkoff, ip->di_dmevmask,
+	   ip->di_extsize, nextents);
+
+    if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+	    nextents = ip->di_nextents32;
+    else
+	    nextents = ip->di_nextents16;
+    printf(_("naextents 0x%lx forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
+	   nextents, (int)ip->di_forkoff, ip->di_dmevmask,
 	   ip->di_dmstate);
     printf(_("flags 0x%x gen 0x%x\n"),
 	   ip->di_flags, ip->di_gen);
@@ -564,7 +577,7 @@ xlog_print_trans_inode(
     memmove(&dino, *ptr, sizeof(dino));
     mode = dino.di_mode & S_IFMT;
     size = (int)dino.di_size;
-    xlog_print_trans_inode_core(&dino);
+    xlog_print_trans_inode_core(log->l_mp, &dino);
     *ptr += xfs_log_dinode_size(log->l_mp);
     skip_count--;
 
diff --git a/logprint/log_print_all.c b/logprint/log_print_all.c
index 403c56372..b528e1c57 100644
--- a/logprint/log_print_all.c
+++ b/logprint/log_print_all.c
@@ -238,9 +238,14 @@ xlog_recover_print_dquot(
 
 STATIC void
 xlog_recover_print_inode_core(
+	struct xlog		*log,
 	struct xfs_log_dinode	*di)
 {
-	printf(_("	CORE inode:\n"));
+	struct xfs_sb		*sbp = &log->l_mp->m_sb;
+	xfs_extnum_t		nextents;
+	xfs_aextnum_t		anextents;
+
+        printf(_("	CORE inode:\n"));
 	if (!print_inode)
 		return;
 	printf(_("		magic:%c%c  mode:0x%x  ver:%d  format:%d\n"),
@@ -254,10 +259,21 @@ xlog_recover_print_inode_core(
 			xlog_extract_dinode_ts(di->di_mtime),
 			xlog_extract_dinode_ts(di->di_ctime));
 	printf(_("		flushiter:%d\n"), di->di_flushiter);
+
+	if (xfs_sb_version_hasextcount_64bit(sbp))
+		nextents = di->di_nextents64;
+	else
+		nextents = di->di_nextents32;
+
+	if (xfs_sb_version_hasextcount_64bit(sbp))
+		anextents = di->di_nextents32;
+	else
+		anextents = di->di_nextents16;
+
 	printf(_("		size:0x%llx  nblks:0x%llx  exsize:%d  "
-	     "nextents:%d  anextents:%d\n"), (unsigned long long)
+	     "nextents:%lu  anextents:%u\n"), (unsigned long long)
 	       di->di_size, (unsigned long long)di->di_nblocks,
-	       di->di_extsize, di->di_nextents32, (int)di->di_nextents16);
+	       di->di_extsize, nextents, anextents);
 	printf(_("		forkoff:%d  dmevmask:0x%x  dmstate:%d  flags:0x%x  "
 	     "gen:%u\n"),
 	       (int)di->di_forkoff, di->di_dmevmask, (int)di->di_dmstate,
@@ -270,6 +286,7 @@ xlog_recover_print_inode_core(
 
 STATIC void
 xlog_recover_print_inode(
+	struct xlog		*log,
 	struct xlog_recover_item *item)
 {
 	struct xfs_inode_log_format	f_buf;
@@ -291,7 +308,7 @@ xlog_recover_print_inode(
 	ASSERT(item->ri_buf[1].i_len ==
 			offsetof(struct xfs_log_dinode, di_next_unlinked) ||
 	       item->ri_buf[1].i_len == sizeof(struct xfs_log_dinode));
-	xlog_recover_print_inode_core((struct xfs_log_dinode *)
+	xlog_recover_print_inode_core(log, (struct xfs_log_dinode *)
 				      item->ri_buf[1].i_addr);
 
 	hasdata = (f->ilf_fields & XFS_ILOG_DFORK) != 0;
@@ -386,6 +403,7 @@ xlog_recover_print_icreate(
 
 void
 xlog_recover_print_logitem(
+	struct xlog			*log,
 	struct xlog_recover_item	*item)
 {
 	switch (ITEM_TYPE(item)) {
@@ -396,7 +414,7 @@ xlog_recover_print_logitem(
 		xlog_recover_print_icreate(item);
 		break;
 	case XFS_LI_INODE:
-		xlog_recover_print_inode(item);
+		xlog_recover_print_inode(log, item);
 		break;
 	case XFS_LI_EFD:
 		xlog_recover_print_efd(item);
@@ -442,6 +460,7 @@ xlog_recover_print_logitem(
 
 static void
 xlog_recover_print_item(
+	struct xlog		*log,
 	struct xlog_recover_item *item)
 {
 	int			i;
@@ -507,11 +526,12 @@ xlog_recover_print_item(
 		       (long)item->ri_buf[i].i_addr, item->ri_buf[i].i_len);
 	}
 	printf("\n");
-	xlog_recover_print_logitem(item);
+	xlog_recover_print_logitem(log, item);
 }
 
 void
 xlog_recover_print_trans(
+	struct xlog		*log,
 	struct xlog_recover	*trans,
 	struct list_head	*itemq,
 	int			print)
@@ -524,5 +544,5 @@ xlog_recover_print_trans(
 	print_xlog_record_line();
 	xlog_recover_print_trans_head(trans);
 	list_for_each_entry(item, itemq, ri_list)
-		xlog_recover_print_item(item);
+		xlog_recover_print_item(log, item);
 }
diff --git a/logprint/log_print_trans.c b/logprint/log_print_trans.c
index 2004b5a0e..c6386fb0c 100644
--- a/logprint/log_print_trans.c
+++ b/logprint/log_print_trans.c
@@ -24,7 +24,7 @@ xlog_recover_do_trans(
 	struct xlog_recover	*trans,
 	int			pass)
 {
-	xlog_recover_print_trans(trans, &trans->r_itemq, 3);
+	xlog_recover_print_trans(log, trans, &trans->r_itemq, 3);
 	return 0;
 }
 
diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
index f41a18f00..a9fca82f1 100644
--- a/repair/bmap_repair.c
+++ b/repair/bmap_repair.c
@@ -536,7 +536,10 @@ rebuild_bmap(
 		if (nextents == 0)
 			return 0;
 		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
-		(*dinop)->di_nextents32 = 0;
+		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+			(*dinop)->di_nextents64 = cpu_to_be64(0);
+		else
+			(*dinop)->di_nextents32 = cpu_to_be32(0);
 		libxfs_dinode_calc_crc(mp, *dinop);
 		*dirty = 1;
 		break;
@@ -547,7 +550,10 @@ rebuild_bmap(
 		if (nextents == 0)
 			return 0;
 		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
-		(*dinop)->di_nextents16 = 0;
+		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+			(*dinop)->di_nextents32 = cpu_to_be32(0);
+		else
+			(*dinop)->di_nextents16 = cpu_to_be16(0);
 		libxfs_dinode_calc_crc(mp, *dinop);
 		*dirty = 1;
 		break;
diff --git a/repair/dinode.c b/repair/dinode.c
index beeb9ed07..5d2dff70a 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -78,7 +78,10 @@ _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
 	if (anextents != 0) {
 		if (no_modify)
 			return(1);
-		dino->di_nextents16 = cpu_to_be16(0);
+		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+			dino->di_nextents32 = cpu_to_be32(0);
+		else
+			dino->di_nextents16 = cpu_to_be16(0);
 	}
 
 	if (dino->di_aformat != XFS_DINODE_FMT_EXTENTS)  {
@@ -1870,7 +1873,10 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			do_warn(
 _("correcting nextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
 				lino, dnextents, nextents);
-			dino->di_nextents32 = cpu_to_be32(nextents);
+			if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+				dino->di_nextents64 = cpu_to_be64(nextents);
+			else
+				dino->di_nextents32 = cpu_to_be32(nextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
@@ -1894,7 +1900,10 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
 			do_warn(
 _("correcting anextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
 				lino, dnextents, anextents);
-			dino->di_nextents16 = cpu_to_be16(anextents);
+			if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
+				dino->di_nextents32 = cpu_to_be32(anextents);
+			else
+				dino->di_nextents16 = cpu_to_be16(anextents);
 			*dirty = 1;
 		} else  {
 			do_warn(
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH V2 12/12] xfsprogs: Add extcnt64bit mkfs option
  2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
                   ` (10 preceding siblings ...)
  2021-07-26 11:47 ` [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths Chandan Babu R
@ 2021-07-26 11:47 ` Chandan Babu R
  11 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-26 11:47 UTC (permalink / raw)
  To: linux-xfs; +Cc: Chandan Babu R, djwong

Enabling extcnt64bit option on mkfs.xfs command line extends the maximum
values of inode data and attr fork extent counters to 2^48 - 1 and 2^32 - 1
respectively.  This also sets the XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT incompat
flag on the superblock preventing older kernels from mounting such a
filesystem.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 man/man8/mkfs.xfs.8 |  7 +++++++
 mkfs/xfs_mkfs.c     | 23 +++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/man/man8/mkfs.xfs.8 b/man/man8/mkfs.xfs.8
index 0e06e5bea..e20f6f475 100644
--- a/man/man8/mkfs.xfs.8
+++ b/man/man8/mkfs.xfs.8
@@ -650,6 +650,13 @@ space over time such that no free extents are large enough to
 accommodate a chunk of 64 inodes. Without this feature enabled, inode
 allocations can fail with out of space errors under severe fragmented
 free space conditions.
+.TP
+.BI extcnt64bit[= value]
+Extend maximum values of inode data and attr fork extent counters from 2^31 -
+1 and 2^15 - 1 to 2^48 - 1 and 2^32 - 1 respectively. If the value is
+omitted, 1 is assumed. This feature is disabled by default. This feature is
+only available for filesystems formatted with -m crc=1.
+.TP
 .RE
 .PP
 .PD 0
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 33b27b1f5..ac2b43188 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -78,6 +78,7 @@ enum {
 	I_ATTR,
 	I_PROJID32BIT,
 	I_SPINODES,
+	I_EXTCNT_64BIT,
 	I_MAX_OPTS,
 };
 
@@ -433,6 +434,7 @@ static struct opt_params iopts = {
 		[I_ATTR] = "attr",
 		[I_PROJID32BIT] = "projid32bit",
 		[I_SPINODES] = "sparse",
+		[I_EXTCNT_64BIT] = "extcnt64bit",
 	},
 	.subopt_params = {
 		{ .index = I_ALIGN,
@@ -481,6 +483,12 @@ static struct opt_params iopts = {
 		  .maxval = 1,
 		  .defaultval = 1,
 		},
+		{ .index = I_EXTCNT_64BIT,
+		  .conflicts = { { NULL, LAST_CONFLICT } },
+		  .minval = 0,
+		  .maxval = 1,
+		  .defaultval = 1,
+		}
 	},
 };
 
@@ -813,6 +821,7 @@ struct sb_feat_args {
 	bool	metadir;		/* XFS_SB_FEAT_INCOMPAT_METADIR */
 	bool	nodalign;
 	bool	nortalign;
+	bool	extcnt64bit;
 };
 
 struct cli_params {
@@ -1594,6 +1603,9 @@ inode_opts_parser(
 	case I_SPINODES:
 		cli->sb_feat.spinodes = getnum(value, opts, subopt);
 		break;
+	case I_EXTCNT_64BIT:
+		cli->sb_feat.extcnt64bit = getnum(value, opts, subopt);
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -2172,6 +2184,14 @@ _("metadata directory not supported without CRC support\n"));
 			usage();
 		}
 		cli->sb_feat.metadir = false;
+
+		if (cli->sb_feat.extcnt64bit &&
+			cli_opt_set(&iopts, I_EXTCNT_64BIT)) {
+			fprintf(stderr,
+_("64 bit extent count not supported without CRC support\n"));
+			usage();
+		}
+		cli->sb_feat.extcnt64bit = false;
 	}
 
 	if (!cli->sb_feat.finobt) {
@@ -3166,6 +3186,8 @@ sb_set_features(
 		sbp->sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_SPINODES;
 	}
 
+	if (fp->extcnt64bit)
+		sbp->sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT;
 }
 
 /*
@@ -3876,6 +3898,7 @@ main(
 			.nodalign = false,
 			.nortalign = false,
 			.bigtime = false,
+			.extcnt64bit = false,
 		},
 	};
 
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* Re: [PATCH V2 04/12] xfsprogs: Use xfs_extnum_t instead of basic data types
  2021-07-26 11:47 ` [PATCH V2 04/12] xfsprogs: Use xfs_extnum_t instead of basic data types Chandan Babu R
@ 2021-07-27 23:11   ` Darrick J. Wong
  0 siblings, 0 replies; 19+ messages in thread
From: Darrick J. Wong @ 2021-07-27 23:11 UTC (permalink / raw)
  To: Chandan Babu R; +Cc: linux-xfs

On Mon, Jul 26, 2021 at 05:17:16PM +0530, Chandan Babu R wrote:
> xfs_extnum_t is the type to use to declare variables which have values
> obtained from xfs_dinode->di_[a]nextents. This commit replaces basic
> types (e.g. uint32_t) with xfs_extnum_t for such variables.
> 
> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
> ---
>  db/bmap.c               | 2 +-
>  db/frag.c               | 2 +-

For the db and repair parts,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

--D

>  libxfs/xfs_bmap.c       | 2 +-
>  libxfs/xfs_inode_buf.c  | 2 +-
>  libxfs/xfs_inode_fork.c | 2 +-
>  repair/dinode.c         | 2 +-
>  6 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/db/bmap.c b/db/bmap.c
> index 5f81d2b52..50f0474bc 100644
> --- a/db/bmap.c
> +++ b/db/bmap.c
> @@ -47,7 +47,7 @@ bmap(
>  	int			n;
>  	int			nex;
>  	xfs_fsblock_t		nextbno;
> -	int			nextents;
> +	xfs_extnum_t		nextents;
>  	xfs_bmbt_ptr_t		*pp;
>  	xfs_bmdr_block_t	*rblock;
>  	typnm_t			typ;
> diff --git a/db/frag.c b/db/frag.c
> index 570ad3b74..90fa2131c 100644
> --- a/db/frag.c
> +++ b/db/frag.c
> @@ -273,7 +273,7 @@ process_fork(
>  	int		whichfork)
>  {
>  	extmap_t	*extmap;
> -	int		nex;
> +	xfs_extnum_t	nex;
>  
>  	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>  	if (!nex)
> diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
> index 608ae5b83..dd60d8105 100644
> --- a/libxfs/xfs_bmap.c
> +++ b/libxfs/xfs_bmap.c
> @@ -46,9 +46,9 @@ xfs_bmap_compute_maxlevels(
>  	xfs_mount_t	*mp,		/* file system mount structure */
>  	int		whichfork)	/* data or attr fork */
>  {
> +	xfs_extnum_t	maxleafents;	/* max leaf entries possible */
>  	int		level;		/* btree level */
>  	uint		maxblocks;	/* max blocks at this level */
> -	uint		maxleafents;	/* max leaf entries possible */
>  	int		maxrootrecs;	/* max records in root block */
>  	int		minleafrecs;	/* min records in leaf block */
>  	int		minnoderecs;	/* min records in node block */
> diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
> index 056fe252b..b2e8e431a 100644
> --- a/libxfs/xfs_inode_buf.c
> +++ b/libxfs/xfs_inode_buf.c
> @@ -339,7 +339,7 @@ xfs_dinode_verify_fork(
>  	struct xfs_mount	*mp,
>  	int			whichfork)
>  {
> -	uint32_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	xfs_extnum_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
>  	xfs_extnum_t		max_extents;
>  
>  	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
> diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
> index 4cd117382..48afaaeec 100644
> --- a/libxfs/xfs_inode_fork.c
> +++ b/libxfs/xfs_inode_fork.c
> @@ -105,7 +105,7 @@ xfs_iformat_extents(
>  	struct xfs_mount	*mp = ip->i_mount;
>  	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
>  	int			state = xfs_bmap_fork_to_state(whichfork);
> -	int			nex = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	xfs_extnum_t		nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>  	int			size = nex * sizeof(xfs_bmbt_rec_t);
>  	struct xfs_iext_cursor	icur;
>  	struct xfs_bmbt_rec	*dp;
> diff --git a/repair/dinode.c b/repair/dinode.c
> index a0c5be7c3..a034b5e86 100644
> --- a/repair/dinode.c
> +++ b/repair/dinode.c
> @@ -967,7 +967,7 @@ process_exinode(
>  	xfs_bmbt_rec_t		*rp;
>  	xfs_fileoff_t		first_key;
>  	xfs_fileoff_t		last_key;
> -	int32_t			numrecs;
> +	xfs_extnum_t		numrecs;
>  	int			ret;
>  
>  	lino = XFS_AGINO_TO_INO(mp, agno, ino);
> -- 
> 2.30.2
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper
  2021-07-26 11:47 ` [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper Chandan Babu R
@ 2021-07-27 23:14   ` Darrick J. Wong
  2021-07-28  7:34     ` Chandan Babu R
  0 siblings, 1 reply; 19+ messages in thread
From: Darrick J. Wong @ 2021-07-27 23:14 UTC (permalink / raw)
  To: Chandan Babu R; +Cc: linux-xfs

On Mon, Jul 26, 2021 at 05:17:17PM +0530, Chandan Babu R wrote:
> This commit replaces the macro XFS_DFORK_NEXTENTS() with the helper function
> xfs_dfork_nextents(). As of this commit, xfs_dfork_nextents() returns the same
> value as XFS_DFORK_NEXTENTS(). A future commit which extends inode's extent
> counter fields will add more logic to this helper.
> 
> This commit also replaces direct accesses to xfs_dinode->di_[a]nextents
> with calls to xfs_dfork_nextents().
> 
> No functional changes have been made.
> 
> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
> ---
>  db/bmap.c               |  6 ++--
>  db/btdump.c             |  4 +--
>  db/check.c              | 27 ++++++++++-------
>  db/frag.c               |  6 ++--
>  db/inode.c              | 14 +++++----
>  db/metadump.c           |  4 +--
>  libxfs/xfs_format.h     |  4 ---
>  libxfs/xfs_inode_buf.c  | 43 +++++++++++++++++++++++----
>  libxfs/xfs_inode_buf.h  |  2 ++
>  libxfs/xfs_inode_fork.c | 11 ++++---
>  repair/attr_repair.c    |  2 +-
>  repair/bmap_repair.c    |  4 +--
>  repair/dinode.c         | 66 ++++++++++++++++++++++++-----------------
>  repair/prefetch.c       |  2 +-
>  14 files changed, 123 insertions(+), 72 deletions(-)
> 
> diff --git a/db/bmap.c b/db/bmap.c
> index 50f0474bc..5e1ab9258 100644
> --- a/db/bmap.c
> +++ b/db/bmap.c
> @@ -68,7 +68,7 @@ bmap(
>  	ASSERT(fmt == XFS_DINODE_FMT_LOCAL || fmt == XFS_DINODE_FMT_EXTENTS ||
>  		fmt == XFS_DINODE_FMT_BTREE);
>  	if (fmt == XFS_DINODE_FMT_EXTENTS) {
> -		nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
> +		nextents = xfs_dfork_nextents(mp, dip, whichfork);
>  		xp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
>  		for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
>  			if (!bmap_one_extent(ep, &curoffset, eoffset, &n, bep))
> @@ -158,9 +158,9 @@ bmap_f(
>  		push_cur();
>  		set_cur_inode(iocur_top->ino);
>  		dip = iocur_top->data;
> -		if (be32_to_cpu(dip->di_nextents))
> +		if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK))
>  			dfork = 1;
> -		if (be16_to_cpu(dip->di_anextents))
> +		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
>  			afork = 1;
>  		pop_cur();
>  	}
> diff --git a/db/btdump.c b/db/btdump.c
> index 920f595b4..59609fd2d 100644
> --- a/db/btdump.c
> +++ b/db/btdump.c
> @@ -166,13 +166,13 @@ dump_inode(
>  
>  	dip = iocur_top->data;
>  	if (attrfork) {
> -		if (!dip->di_anextents ||
> +		if (!xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) ||
>  		    dip->di_aformat != XFS_DINODE_FMT_BTREE) {
>  			dbprintf(_("attr fork not in btree format\n"));
>  			return 0;
>  		}
>  	} else {
> -		if (!dip->di_nextents ||
> +		if (!xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) ||
>  		    dip->di_format != XFS_DINODE_FMT_BTREE) {
>  			dbprintf(_("data fork not in btree format\n"));
>  			return 0;
> diff --git a/db/check.c b/db/check.c
> index 0d923e3ae..fe422e0ca 100644
> --- a/db/check.c
> +++ b/db/check.c
> @@ -2720,7 +2720,7 @@ process_exinode(
>  	xfs_bmbt_rec_t		*rp;
>  
>  	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
> -	*nex = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	*nex = xfs_dfork_nextents(mp, dip, whichfork);
>  	if (*nex < 0 || *nex > XFS_DFORK_SIZE(dip, mp, whichfork) /
>  						sizeof(xfs_bmbt_rec_t)) {
>  		if (!sflag || id->ilist)
> @@ -2744,12 +2744,14 @@ process_inode(
>  	inodata_t		*id = NULL;
>  	xfs_ino_t		ino;
>  	xfs_extnum_t		nextents = 0;
> +	xfs_extnum_t		dnextents;
>  	int			security;
>  	xfs_rfsblock_t		totblocks;
>  	xfs_rfsblock_t		totdblocks = 0;
>  	xfs_rfsblock_t		totiblocks = 0;
>  	dbm_t			type;
>  	xfs_extnum_t		anextents = 0;
> +	xfs_extnum_t		danextents;
>  	xfs_rfsblock_t		atotdblocks = 0;
>  	xfs_rfsblock_t		atotiblocks = 0;
>  	xfs_qcnt_t		bc = 0;
> @@ -2878,14 +2880,17 @@ process_inode(
>  		error++;
>  		return;
>  	}
> +
> +	dnextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
> +	danextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
> +
>  	if (verbose || (id && id->ilist) || CHECK_BLIST(bno))
>  		dbprintf(_("inode %lld mode %#o fmt %s "
>  			 "afmt %s "
>  			 "nex %d anex %d nblk %lld sz %lld%s%s%s%s%s%s%s\n"),
>  			id->ino, mode, fmtnames[(int)dip->di_format],
>  			fmtnames[(int)dip->di_aformat],
> -			be32_to_cpu(dip->di_nextents),
> -			be16_to_cpu(dip->di_anextents),
> +			dnextents, danextents,
>  			be64_to_cpu(dip->di_nblocks), be64_to_cpu(dip->di_size),
>  			diflags & XFS_DIFLAG_REALTIME ? " rt" : "",
>  			diflags & XFS_DIFLAG_PREALLOC ? " pre" : "",
> @@ -2903,19 +2908,19 @@ process_inode(
>  		if (xfs_sb_version_hasmetadir(&mp->m_sb) &&
>  		    id->ino == mp->m_sb.sb_metadirino)
>  			addlink_inode(id);
> -		blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
> +		blkmap = blkmap_alloc(dnextents);
>  		break;
>  	case S_IFREG:
>  		if (diflags & XFS_DIFLAG_REALTIME)
>  			type = DBM_RTDATA;
>  		else if (id->ino == mp->m_sb.sb_rbmino) {
>  			type = DBM_RTBITMAP;
> -			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
> +			blkmap = blkmap_alloc(dnextents);
>  			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
>  				addlink_inode(id);
>  		} else if (id->ino == mp->m_sb.sb_rsumino) {
>  			type = DBM_RTSUM;
> -			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
> +			blkmap = blkmap_alloc(dnextents);
>  			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
>  				addlink_inode(id);
>  		}
> @@ -2923,7 +2928,7 @@ process_inode(
>  			 id->ino == mp->m_sb.sb_gquotino ||
>  			 id->ino == mp->m_sb.sb_pquotino) {
>  			type = DBM_QUOTA;
> -			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
> +			blkmap = blkmap_alloc(dnextents);
>  			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
>  				addlink_inode(id);
>  		}
> @@ -3006,17 +3011,17 @@ process_inode(
>  				be64_to_cpu(dip->di_nblocks), id->ino, totblocks);
>  		error++;
>  	}
> -	if (nextents != be32_to_cpu(dip->di_nextents)) {
> +	if (nextents != dnextents) {
>  		if (v)
>  			dbprintf(_("bad nextents %d for inode %lld, counted %d\n"),
> -				be32_to_cpu(dip->di_nextents), id->ino, nextents);
> +				dnextents, id->ino, nextents);
>  		error++;
>  	}
> -	if (anextents != be16_to_cpu(dip->di_anextents)) {
> +	if (anextents != danextents) {
>  		if (v)
>  			dbprintf(_("bad anextents %d for inode %lld, counted "
>  				 "%d\n"),
> -				be16_to_cpu(dip->di_anextents), id->ino, anextents);
> +				danextents, id->ino, anextents);
>  		error++;
>  	}
>  	if (type == DBM_DIR)
> diff --git a/db/frag.c b/db/frag.c
> index 90fa2131c..3e43a9a21 100644
> --- a/db/frag.c
> +++ b/db/frag.c
> @@ -262,9 +262,11 @@ process_exinode(
>  	int			whichfork)
>  {
>  	xfs_bmbt_rec_t		*rp;
> +	xfs_extnum_t		nextents;
>  
>  	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
> -	process_bmbt_reclist(rp, XFS_DFORK_NEXTENTS(dip, whichfork), extmapp);
> +	nextents = xfs_dfork_nextents(mp, dip, whichfork);
> +	process_bmbt_reclist(rp, nextents, extmapp);
>  }
>  
>  static void
> @@ -275,7 +277,7 @@ process_fork(
>  	extmap_t	*extmap;
>  	xfs_extnum_t	nex;
>  
> -	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	nex = xfs_dfork_nextents(mp, dip, whichfork);
>  	if (!nex)
>  		return;
>  	extmap = extmap_alloc(nex);
> diff --git a/db/inode.c b/db/inode.c
> index e59cff451..681f4f98a 100644
> --- a/db/inode.c
> +++ b/db/inode.c
> @@ -278,7 +278,7 @@ inode_a_bmx_count(
>  		return 0;
>  	ASSERT((char *)XFS_DFORK_APTR(dip) - (char *)dip == byteize(startoff));
>  	return dip->di_aformat == XFS_DINODE_FMT_EXTENTS ?
> -		be16_to_cpu(dip->di_anextents) : 0;
> +		xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) : 0;
>  }
>  
>  static int
> @@ -332,6 +332,7 @@ inode_a_size(
>  {
>  	struct xfs_attr_shortform	*asf;
>  	xfs_dinode_t			*dip;
> +	xfs_extnum_t			nextents;
>  
>  	ASSERT(startoff == 0);
>  	ASSERT(idx == 0);
> @@ -341,8 +342,8 @@ inode_a_size(
>  		asf = (struct xfs_attr_shortform *)XFS_DFORK_APTR(dip);
>  		return bitize(be16_to_cpu(asf->hdr.totsize));
>  	case XFS_DINODE_FMT_EXTENTS:
> -		return (int)be16_to_cpu(dip->di_anextents) *
> -							bitsz(xfs_bmbt_rec_t);
> +		nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
> +		return (int)nextents * bitsz(xfs_bmbt_rec_t);

I think you can drop the cast (and convert the typedef) her.

>  	case XFS_DINODE_FMT_BTREE:
>  		return bitize((int)XFS_DFORK_ASIZE(dip, mp));
>  	default:
> @@ -503,7 +504,7 @@ inode_u_bmx_count(
>  	dip = obj;
>  	ASSERT((char *)XFS_DFORK_DPTR(dip) - (char *)dip == byteize(startoff));
>  	return dip->di_format == XFS_DINODE_FMT_EXTENTS ?
> -		be32_to_cpu(dip->di_nextents) : 0;
> +		xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) : 0;
>  }
>  
>  static int
> @@ -589,6 +590,7 @@ inode_u_size(
>  	int		idx)
>  {
>  	xfs_dinode_t	*dip;
> +	xfs_extnum_t	nextents;
>  
>  	ASSERT(startoff == 0);
>  	ASSERT(idx == 0);
> @@ -599,8 +601,8 @@ inode_u_size(
>  	case XFS_DINODE_FMT_LOCAL:
>  		return bitize((int)be64_to_cpu(dip->di_size));
>  	case XFS_DINODE_FMT_EXTENTS:
> -		return (int)be32_to_cpu(dip->di_nextents) *
> -						bitsz(xfs_bmbt_rec_t);
> +		nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
> +		return (int)nextents * bitsz(xfs_bmbt_rec_t);

...and here.

The rest of the db/repair changes look good.

--D

>  	case XFS_DINODE_FMT_BTREE:
>  		return bitize((int)XFS_DFORK_DSIZE(dip, mp));
>  	case XFS_DINODE_FMT_UUID:
> diff --git a/db/metadump.c b/db/metadump.c
> index 332e43a8e..c194501d0 100644
> --- a/db/metadump.c
> +++ b/db/metadump.c
> @@ -2314,7 +2314,7 @@ process_exinode(
>  
>  	whichfork = (itype == TYP_ATTR) ? XFS_ATTR_FORK : XFS_DATA_FORK;
>  
> -	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	nex = xfs_dfork_nextents(mp, dip, whichfork);
>  	used = nex * sizeof(xfs_bmbt_rec_t);
>  	if (nex < 0 || used > XFS_DFORK_SIZE(dip, mp, whichfork)) {
>  		if (show_warnings)
> @@ -2369,7 +2369,7 @@ static int
>  process_dev_inode(
>  	xfs_dinode_t		*dip)
>  {
> -	if (XFS_DFORK_NEXTENTS(dip, XFS_DATA_FORK)) {
> +	if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK)) {
>  		if (show_warnings)
>  			print_warning("inode %llu has unexpected extents",
>  				      (unsigned long long)cur_ino);
> diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
> index 84b3aefe2..2a5e7e3a3 100644
> --- a/libxfs/xfs_format.h
> +++ b/libxfs/xfs_format.h
> @@ -1166,10 +1166,6 @@ enum xfs_dinode_fmt {
>  	((w) == XFS_DATA_FORK ? \
>  		(dip)->di_format : \
>  		(dip)->di_aformat)
> -#define XFS_DFORK_NEXTENTS(dip,w) \
> -	((w) == XFS_DATA_FORK ? \
> -		be32_to_cpu((dip)->di_nextents) : \
> -		be16_to_cpu((dip)->di_anextents))
>  
>  /*
>   * For block and character special files the 32bit dev_t is stored at the
> diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
> index b2e8e431a..8d52ce186 100644
> --- a/libxfs/xfs_inode_buf.c
> +++ b/libxfs/xfs_inode_buf.c
> @@ -339,9 +339,11 @@ xfs_dinode_verify_fork(
>  	struct xfs_mount	*mp,
>  	int			whichfork)
>  {
> -	xfs_extnum_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	xfs_extnum_t		di_nextents;
>  	xfs_extnum_t		max_extents;
>  
> +	di_nextents = xfs_dfork_nextents(mp, dip, whichfork);
> +
>  	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
>  	case XFS_DINODE_FMT_LOCAL:
>  		/*
> @@ -372,6 +374,31 @@ xfs_dinode_verify_fork(
>  	return NULL;
>  }
>  
> +xfs_extnum_t
> +xfs_dfork_nextents(
> +	struct xfs_mount	*mp,
> +	struct xfs_dinode	*dip,
> +	int			whichfork)
> +{
> +	xfs_extnum_t		nextents = 0;
> +
> +	switch (whichfork) {
> +	case XFS_DATA_FORK:
> +		nextents = be32_to_cpu(dip->di_nextents);
> +		break;
> +
> +	case XFS_ATTR_FORK:
> +		nextents = be16_to_cpu(dip->di_anextents);
> +		break;
> +
> +	default:
> +		ASSERT(0);
> +		break;
> +	}
> +
> +	return nextents;
> +}
> +
>  static xfs_failaddr_t
>  xfs_dinode_verify_forkoff(
>  	struct xfs_dinode	*dip,
> @@ -471,6 +498,8 @@ xfs_dinode_verify(
>  	uint16_t		flags;
>  	uint64_t		flags2;
>  	uint64_t		di_size;
> +	uint64_t		nblocks;
> +	xfs_extnum_t            nextents;
>  
>  	if (dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))
>  		return __this_address;
> @@ -501,10 +530,12 @@ xfs_dinode_verify(
>  	if ((S_ISLNK(mode) || S_ISDIR(mode)) && di_size == 0)
>  		return __this_address;
>  
> -	/* Fork checks carried over from xfs_iformat_fork */
> -	if (mode &&
> -	    be32_to_cpu(dip->di_nextents) + be16_to_cpu(dip->di_anextents) >
> -			be64_to_cpu(dip->di_nblocks))
> +	nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
> +	nextents += xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
> +	nblocks = be64_to_cpu(dip->di_nblocks);
> +
> +        /* Fork checks carried over from xfs_iformat_fork */
> +	if (mode && nextents > nblocks)
>  		return __this_address;
>  
>  	if (mode && XFS_DFORK_BOFF(dip) > mp->m_sb.sb_inodesize)
> @@ -561,7 +592,7 @@ xfs_dinode_verify(
>  		default:
>  			return __this_address;
>  		}
> -		if (dip->di_anextents)
> +		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
>  			return __this_address;
>  	}
>  
> diff --git a/libxfs/xfs_inode_buf.h b/libxfs/xfs_inode_buf.h
> index a30b76760..ea2c35091 100644
> --- a/libxfs/xfs_inode_buf.h
> +++ b/libxfs/xfs_inode_buf.h
> @@ -36,6 +36,8 @@ xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
>  xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
>  		uint32_t cowextsize, uint16_t mode, uint16_t flags,
>  		uint64_t flags2);
> +xfs_extnum_t xfs_dfork_nextents(struct xfs_mount *mp, struct xfs_dinode *dip,
> +		int whichfork);
>  
>  static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
>  {
> diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
> index 48afaaeec..831313e3a 100644
> --- a/libxfs/xfs_inode_fork.c
> +++ b/libxfs/xfs_inode_fork.c
> @@ -105,7 +105,7 @@ xfs_iformat_extents(
>  	struct xfs_mount	*mp = ip->i_mount;
>  	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
>  	int			state = xfs_bmap_fork_to_state(whichfork);
> -	xfs_extnum_t		nex = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	xfs_extnum_t		nex = xfs_dfork_nextents(mp, dip, whichfork);
>  	int			size = nex * sizeof(xfs_bmbt_rec_t);
>  	struct xfs_iext_cursor	icur;
>  	struct xfs_bmbt_rec	*dp;
> @@ -224,6 +224,7 @@ xfs_iformat_data_fork(
>  	struct xfs_inode	*ip,
>  	struct xfs_dinode	*dip)
>  {
> +	struct xfs_mount	*mp = ip->i_mount;
>  	struct inode		*inode = VFS_I(ip);
>  	int			error;
>  
> @@ -232,7 +233,7 @@ xfs_iformat_data_fork(
>  	 * depend on it.
>  	 */
>  	ip->i_df.if_format = dip->di_format;
> -	ip->i_df.if_nextents = be32_to_cpu(dip->di_nextents);
> +	ip->i_df.if_nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
>  
>  	switch (inode->i_mode & S_IFMT) {
>  	case S_IFIFO:
> @@ -299,14 +300,16 @@ xfs_iformat_attr_fork(
>  	struct xfs_inode	*ip,
>  	struct xfs_dinode	*dip)
>  {
> +	struct xfs_mount	*mp = ip->i_mount;
> +	xfs_extnum_t		nextents;
>  	int			error = 0;
>  
>  	/*
>  	 * Initialize the extent count early, as the per-format routines may
>  	 * depend on it.
>  	 */
> -	ip->i_afp = xfs_ifork_alloc(dip->di_aformat,
> -				be16_to_cpu(dip->di_anextents));
> +	nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
> +	ip->i_afp = xfs_ifork_alloc(dip->di_aformat, nextents);
>  
>  	switch (ip->i_afp->if_format) {
>  	case XFS_DINODE_FMT_LOCAL:
> diff --git a/repair/attr_repair.c b/repair/attr_repair.c
> index bc3c2bef7..0a461b675 100644
> --- a/repair/attr_repair.c
> +++ b/repair/attr_repair.c
> @@ -1083,7 +1083,7 @@ process_longform_attr(
>  	bno = blkmap_get(blkmap, 0);
>  	if (bno == NULLFSBLOCK) {
>  		if (dip->di_aformat == XFS_DINODE_FMT_EXTENTS &&
> -				be16_to_cpu(dip->di_anextents) == 0)
> +			xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) == 0)
>  			return(0); /* the kernel can handle this state */
>  		do_warn(
>  	_("block 0 of inode %" PRIu64 " attribute fork is missing\n"),
> diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
> index 699089791..2e0475db1 100644
> --- a/repair/bmap_repair.c
> +++ b/repair/bmap_repair.c
> @@ -528,7 +528,7 @@ rebuild_bmap(
>  	 */
>  	switch (whichfork) {
>  	case XFS_DATA_FORK:
> -		if ((*dinop)->di_nextents == 0)
> +		if (!xfs_dfork_nextents(mp, *dinop, XFS_DATA_FORK))
>  			return 0;
>  		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
>  		(*dinop)->di_nextents = 0;
> @@ -536,7 +536,7 @@ rebuild_bmap(
>  		*dirty = 1;
>  		break;
>  	case XFS_ATTR_FORK:
> -		if ((*dinop)->di_anextents == 0)
> +		if (!xfs_dfork_nextents(mp, *dinop, XFS_ATTR_FORK))
>  			return 0;
>  		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
>  		(*dinop)->di_anextents = 0;
> diff --git a/repair/dinode.c b/repair/dinode.c
> index a034b5e86..6cc5bce5c 100644
> --- a/repair/dinode.c
> +++ b/repair/dinode.c
> @@ -69,7 +69,7 @@ _("clearing inode %" PRIu64 " attributes\n"), ino_num);
>  		fprintf(stderr,
>  _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
>  
> -	if (be16_to_cpu(dino->di_anextents) != 0)  {
> +	if (xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK) != 0) {
>  		if (no_modify)
>  			return(1);
>  		dino->di_anextents = cpu_to_be16(0);
> @@ -973,7 +973,7 @@ process_exinode(
>  	lino = XFS_AGINO_TO_INO(mp, agno, ino);
>  	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
>  	*tot = 0;
> -	numrecs = XFS_DFORK_NEXTENTS(dip, whichfork);
> +	numrecs = xfs_dfork_nextents(mp, dip, whichfork);
>  
>  	/*
>  	 * We've already decided on the maximum number of extents on the inode,
> @@ -1050,7 +1050,7 @@ process_symlink_extlist(xfs_mount_t *mp, xfs_ino_t lino, xfs_dinode_t *dino)
>  	xfs_fileoff_t		expected_offset;
>  	xfs_bmbt_rec_t		*rp;
>  	xfs_bmbt_irec_t		irec;
> -	int			numrecs;
> +	xfs_extnum_t		numrecs;
>  	int			i;
>  	int			max_blocks;
>  
> @@ -1072,7 +1072,7 @@ _("mismatch between format (%d) and size (%" PRId64 ") in symlink inode %" PRIu6
>  	}
>  
>  	rp = (xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino);
> -	numrecs = be32_to_cpu(dino->di_nextents);
> +	numrecs = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
>  
>  	/*
>  	 * the max # of extents in a symlink inode is equal to the
> @@ -1578,6 +1578,8 @@ process_check_sb_inodes(
>  	int		*type,
>  	int		*dirty)
>  {
> +	xfs_extnum_t	nextents;
> +
>  	if (lino == mp->m_sb.sb_rootino) {
>  		if (*type != XR_INO_DIR)  {
>  			do_warn(_("root inode %" PRIu64 " has bad type 0x%x\n"),
> @@ -1632,10 +1634,12 @@ _("realtime summary inode %" PRIu64 " has bad type 0x%x, "),
>  				do_warn(_("would reset to regular file\n"));
>  			}
>  		}
> -		if (mp->m_sb.sb_rblocks == 0 && dinoc->di_nextents != 0)  {
> +
> +		nextents = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK);
> +		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
>  			do_warn(
> -_("bad # of extents (%u) for realtime summary inode %" PRIu64 "\n"),
> -				be32_to_cpu(dinoc->di_nextents), lino);
> +_("bad # of extents (%d) for realtime summary inode %" PRIu64 "\n"),
> +				nextents, lino);
>  			return 1;
>  		}
>  		return 0;
> @@ -1653,10 +1657,12 @@ _("realtime bitmap inode %" PRIu64 " has bad type 0x%x, "),
>  				do_warn(_("would reset to regular file\n"));
>  			}
>  		}
> -		if (mp->m_sb.sb_rblocks == 0 && dinoc->di_nextents != 0)  {
> +
> +		nextents = xfs_dfork_nextents(mp, dinoc, XFS_DATA_FORK);
> +		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
>  			do_warn(
> -_("bad # of extents (%u) for realtime bitmap inode %" PRIu64 "\n"),
> -				be32_to_cpu(dinoc->di_nextents), lino);
> +_("bad # of extents (%d) for realtime bitmap inode %" PRIu64 "\n"),
> +				nextents, lino);
>  			return 1;
>  		}
>  		return 0;
> @@ -1816,6 +1822,8 @@ process_inode_blocks_and_extents(
>  	xfs_ino_t	lino,
>  	int		*dirty)
>  {
> +	xfs_extnum_t		dnextents;
> +
>  	if (nblocks != be64_to_cpu(dino->di_nblocks))  {
>  		if (!no_modify)  {
>  			do_warn(
> @@ -1838,20 +1846,19 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>  			nextents, lino);
>  		return 1;
>  	}
> -	if (nextents != be32_to_cpu(dino->di_nextents))  {
> +
> +	dnextents = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
> +	if (nextents != dnextents)  {
>  		if (!no_modify)  {
>  			do_warn(
>  _("correcting nextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
> -				lino,
> -				be32_to_cpu(dino->di_nextents),
> -				nextents);
> +				lino, dnextents, nextents);
>  			dino->di_nextents = cpu_to_be32(nextents);
>  			*dirty = 1;
>  		} else  {
>  			do_warn(
>  _("bad nextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
> -				be32_to_cpu(dino->di_nextents),
> -				lino, nextents);
> +				dnextents, lino, nextents);
>  		}
>  	}
>  
> @@ -1861,19 +1868,19 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>  			anextents, lino);
>  		return 1;
>  	}
> -	if (anextents != be16_to_cpu(dino->di_anextents))  {
> +
> +	dnextents = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK);
> +	if (anextents != dnextents)  {
>  		if (!no_modify)  {
>  			do_warn(
>  _("correcting anextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
> -				lino,
> -				be16_to_cpu(dino->di_anextents), anextents);
> +				lino, dnextents, anextents);
>  			dino->di_anextents = cpu_to_be16(anextents);
>  			*dirty = 1;
>  		} else  {
>  			do_warn(
>  _("bad anextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
> -				be16_to_cpu(dino->di_anextents),
> -				lino, anextents);
> +				dnextents, lino, anextents);
>  		}
>  	}
>  
> @@ -1910,8 +1917,8 @@ process_inode_data_fork(
>  {
>  	struct xfs_dinode	*dino = *dinop;
>  	xfs_ino_t		lino = XFS_AGINO_TO_INO(mp, agno, ino);
> +	xfs_extnum_t		nex;
>  	int			err = 0;
> -	int			nex;
>  	int			try_rebuild = -1; /* don't know yet */
>  
>  retry:
> @@ -1920,7 +1927,7 @@ retry:
>  	 * uses negative values in memory. hence if we see negative numbers
>  	 * here, trash it!
>  	 */
> -	nex = be32_to_cpu(dino->di_nextents);
> +	nex = xfs_dfork_nextents(mp, dino, XFS_DATA_FORK);
>  	if (nex < 0)
>  		*nextents = 1;
>  	else
> @@ -1970,8 +1977,7 @@ _("rebuilding inode %"PRIu64" data fork\n"),
>  					lino);
>  				try_rebuild = 0;
>  				err = rebuild_bmap(mp, lino, XFS_DATA_FORK,
> -						be32_to_cpu(dino->di_nextents),
> -						ino_bpp, dinop, dirty);
> +						nex, ino_bpp, dinop, dirty);
>  				dino = *dinop;
>  				if (!err)
>  					goto retry;
> @@ -2070,7 +2076,7 @@ retry:
>  		return 0;
>  	}
>  
> -	*anextents = be16_to_cpu(dino->di_anextents);
> +	*anextents = xfs_dfork_nextents(mp, dino, XFS_ATTR_FORK);
>  	if (*anextents > be64_to_cpu(dino->di_nblocks))
>  		*anextents = 1;
>  
> @@ -2118,13 +2124,17 @@ retry:
>  
>  		if (!no_modify)  {
>  			if (try_rebuild == 1) {
> +				xfs_extnum_t danextents;
> +
> +				danextents = xfs_dfork_nextents(mp, dino,
> +						XFS_ATTR_FORK);
>  				do_warn(
>  _("rebuilding inode %"PRIu64" attr fork\n"),
>  					lino);
>  				try_rebuild = 0;
>  				err = rebuild_bmap(mp, lino, XFS_ATTR_FORK,
> -						be16_to_cpu(dino->di_anextents),
> -						ino_bpp, dinop, dirty);
> +						danextents, ino_bpp, dinop,
> +						dirty);
>  				dino = *dinop;
>  				if (!err)
>  					goto retry;
> diff --git a/repair/prefetch.c b/repair/prefetch.c
> index 9e5ced94a..b8d11ead0 100644
> --- a/repair/prefetch.c
> +++ b/repair/prefetch.c
> @@ -393,7 +393,7 @@ pf_read_exinode(
>  	xfs_dinode_t		*dino)
>  {
>  	pf_read_bmbt_reclist(args, (xfs_bmbt_rec_t *)XFS_DFORK_DPTR(dino),
> -			be32_to_cpu(dino->di_nextents));
> +			xfs_dfork_nextents(mp, dino, XFS_DATA_FORK));
>  }
>  
>  static void
> -- 
> 2.30.2
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH V2 08/12] xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively
  2021-07-26 11:47 ` [PATCH V2 08/12] xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively Chandan Babu R
@ 2021-07-27 23:15   ` Darrick J. Wong
  0 siblings, 0 replies; 19+ messages in thread
From: Darrick J. Wong @ 2021-07-27 23:15 UTC (permalink / raw)
  To: Chandan Babu R; +Cc: linux-xfs

On Mon, Jul 26, 2021 at 05:17:20PM +0530, Chandan Babu R wrote:
> A future commit will introduce a 64-bit on-disk data extent counter and a
> 32-bit on-disk attr extent counter. This commit promotes xfs_extnum_t and
> xfs_aextnum_t to 64 and 32-bits in order to correctly handle in-core versions
> of these quantities.
> 
> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>

xfs_repair changes look good,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

--D

> ---
>  libxfs/xfs_inode_fork.c |  2 +-
>  libxfs/xfs_types.h      |  4 ++--
>  repair/dinode.c         | 20 ++++++++++----------
>  repair/dinode.h         |  4 ++--
>  repair/scan.c           |  6 +++---
>  5 files changed, 18 insertions(+), 18 deletions(-)
> 
> diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
> index 699bac823..8e2da89c7 100644
> --- a/libxfs/xfs_inode_fork.c
> +++ b/libxfs/xfs_inode_fork.c
> @@ -124,7 +124,7 @@ xfs_iformat_extents(
>  	 * we just bail out rather than crash in kmem_alloc() or memcpy() below.
>  	 */
>  	if (unlikely(size < 0 || size > XFS_DFORK_SIZE(dip, mp, whichfork))) {
> -		xfs_warn(ip->i_mount, "corrupt inode %Lu ((a)extents = %d).",
> +		xfs_warn(ip->i_mount, "corrupt inode %Lu ((a)extents = %llu).",
>  			(unsigned long long) ip->i_ino, nex);
>  		xfs_inode_verifier_error(ip, -EFSCORRUPTED,
>  				"xfs_iformat_extents(1)", dip, sizeof(*dip),
> diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h
> index 8908346b1..584fa61e3 100644
> --- a/libxfs/xfs_types.h
> +++ b/libxfs/xfs_types.h
> @@ -12,8 +12,8 @@ typedef uint32_t	xfs_agblock_t;	/* blockno in alloc. group */
>  typedef uint32_t	xfs_agino_t;	/* inode # within allocation grp */
>  typedef uint32_t	xfs_extlen_t;	/* extent length in blocks */
>  typedef uint32_t	xfs_agnumber_t;	/* allocation group number */
> -typedef int32_t		xfs_extnum_t;	/* # of extents in a file */
> -typedef int16_t		xfs_aextnum_t;	/* # extents in an attribute fork */
> +typedef uint64_t	xfs_extnum_t;	/* # of extents in a file */
> +typedef uint32_t	xfs_aextnum_t;	/* # extents in an attribute fork */
>  typedef int64_t		xfs_fsize_t;	/* bytes in a file */
>  typedef uint64_t	xfs_ufsize_t;	/* unsigned bytes in a file */
>  
> diff --git a/repair/dinode.c b/repair/dinode.c
> index efff83ef9..beeb9ed07 100644
> --- a/repair/dinode.c
> +++ b/repair/dinode.c
> @@ -357,7 +357,7 @@ static int
>  process_bmbt_reclist_int(
>  	xfs_mount_t		*mp,
>  	xfs_bmbt_rec_t		*rp,
> -	int			*numrecs,
> +	xfs_extnum_t		*numrecs,
>  	int			type,
>  	xfs_ino_t		ino,
>  	xfs_rfsblock_t		*tot,
> @@ -680,7 +680,7 @@ int
>  process_bmbt_reclist(
>  	xfs_mount_t		*mp,
>  	xfs_bmbt_rec_t		*rp,
> -	int			*numrecs,
> +	xfs_extnum_t		*numrecs,
>  	int			type,
>  	xfs_ino_t		ino,
>  	xfs_rfsblock_t		*tot,
> @@ -703,7 +703,7 @@ int
>  scan_bmbt_reclist(
>  	xfs_mount_t		*mp,
>  	xfs_bmbt_rec_t		*rp,
> -	int			*numrecs,
> +	xfs_extnum_t		*numrecs,
>  	int			type,
>  	xfs_ino_t		ino,
>  	xfs_rfsblock_t		*tot,
> @@ -1089,7 +1089,7 @@ _("mismatch between format (%d) and size (%" PRId64 ") in symlink inode %" PRIu6
>  	 */
>  	if (numrecs > max_symlink_blocks)  {
>  		do_warn(
> -_("bad number of extents (%d) in symlink %" PRIu64 " data fork\n"),
> +_("bad number of extents (%lu) in symlink %" PRIu64 " data fork\n"),
>  			numrecs, lino);
>  		return(1);
>  	}
> @@ -1650,7 +1650,7 @@ _("realtime summary inode %" PRIu64 " has bad type 0x%x, "),
>  
>  		if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
>  			do_warn(
> -_("bad # of extents (%d) for realtime summary inode %" PRIu64 "\n"),
> +_("bad # of extents (%lu) for realtime summary inode %" PRIu64 "\n"),
>  				nextents, lino);
>  			return 1;
>  		}
> @@ -1675,7 +1675,7 @@ _("realtime bitmap inode %" PRIu64 " has bad type 0x%x, "),
>  
>                  if (mp->m_sb.sb_rblocks == 0 && nextents != 0)  {
>  			do_warn(
> -_("bad # of extents (%d) for realtime bitmap inode %" PRIu64 "\n"),
> +_("bad # of extents (%lu) for realtime bitmap inode %" PRIu64 "\n"),
>  				nextents, lino);
>  			return 1;
>  		}
> @@ -1868,13 +1868,13 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>  	if (nextents != dnextents)  {
>  		if (!no_modify)  {
>  			do_warn(
> -_("correcting nextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
> +_("correcting nextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
>  				lino, dnextents, nextents);
>  			dino->di_nextents32 = cpu_to_be32(nextents);
>  			*dirty = 1;
>  		} else  {
>  			do_warn(
> -_("bad nextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
> +_("bad nextents %lu for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
>  				dnextents, lino, nextents);
>  		}
>  	}
> @@ -1892,13 +1892,13 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>  	if (anextents != dnextents)  {
>  		if (!no_modify)  {
>  			do_warn(
> -_("correcting anextents for inode %" PRIu64 ", was %d - counted %" PRIu64 "\n"),
> +_("correcting anextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
>  				lino, dnextents, anextents);
>  			dino->di_nextents16 = cpu_to_be16(anextents);
>  			*dirty = 1;
>  		} else  {
>  			do_warn(
> -_("bad anextents %d for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
> +_("bad anextents %lu for inode %" PRIu64 ", would reset to %" PRIu64 "\n"),
>  				dnextents, lino, anextents);
>  		}
>  	}
> diff --git a/repair/dinode.h b/repair/dinode.h
> index e190b7435..09129e7b5 100644
> --- a/repair/dinode.h
> +++ b/repair/dinode.h
> @@ -20,7 +20,7 @@ convert_extent(
>  int
>  process_bmbt_reclist(xfs_mount_t	*mp,
>  		xfs_bmbt_rec_t		*rp,
> -		int			*numrecs,
> +		xfs_extnum_t		*numrecs,
>  		int			type,
>  		xfs_ino_t		ino,
>  		xfs_rfsblock_t		*tot,
> @@ -34,7 +34,7 @@ int
>  scan_bmbt_reclist(
>  	xfs_mount_t		*mp,
>  	xfs_bmbt_rec_t		*rp,
> -	int			*numrecs,
> +	xfs_extnum_t		*numrecs,
>  	int			type,
>  	xfs_ino_t		ino,
>  	xfs_rfsblock_t		*tot,
> diff --git a/repair/scan.c b/repair/scan.c
> index 86fa8b4dd..76021cff0 100644
> --- a/repair/scan.c
> +++ b/repair/scan.c
> @@ -223,7 +223,7 @@ scan_bmapbt(
>  	xfs_fileoff_t		first_key;
>  	xfs_fileoff_t		last_key;
>  	char			*forkname = get_forkname(whichfork);
> -	int			numrecs;
> +	xfs_extnum_t		numrecs;
>  	xfs_agnumber_t		agno;
>  	xfs_agblock_t		agbno;
>  	int			state;
> @@ -443,7 +443,7 @@ _("couldn't add inode %"PRIu64" bmbt block %"PRIu64" reverse-mapping data."),
>  		if (numrecs > mp->m_bmap_dmxr[0] || (isroot == 0 && numrecs <
>  							mp->m_bmap_dmnr[0])) {
>  				do_warn(
> -_("inode %" PRIu64 " bad # of bmap records (%u, min - %u, max - %u)\n"),
> +_("inode %" PRIu64 " bad # of bmap records (%lu, min - %u, max - %u)\n"),
>  					ino, numrecs, mp->m_bmap_dmnr[0],
>  					mp->m_bmap_dmxr[0]);
>  			return(1);
> @@ -495,7 +495,7 @@ _("out-of-order bmap key (file offset) in inode %" PRIu64 ", %s fork, fsbno %" P
>  	if (numrecs > mp->m_bmap_dmxr[1] || (isroot == 0 && numrecs <
>  							mp->m_bmap_dmnr[1])) {
>  		do_warn(
> -_("inode %" PRIu64 " bad # of bmap records (%u, min - %u, max - %u)\n"),
> +_("inode %" PRIu64 " bad # of bmap records (%lu, min - %u, max - %u)\n"),
>  			ino, numrecs, mp->m_bmap_dmnr[1], mp->m_bmap_dmxr[1]);
>  		return(1);
>  	}
> -- 
> 2.30.2
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper
  2021-07-27 23:14   ` Darrick J. Wong
@ 2021-07-28  7:34     ` Chandan Babu R
  0 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-28  7:34 UTC (permalink / raw)
  To: Darrick J. Wong; +Cc: linux-xfs

On 28 Jul 2021 at 04:44, Darrick J. Wong wrote:
> On Mon, Jul 26, 2021 at 05:17:17PM +0530, Chandan Babu R wrote:
>> This commit replaces the macro XFS_DFORK_NEXTENTS() with the helper function
>> xfs_dfork_nextents(). As of this commit, xfs_dfork_nextents() returns the same
>> value as XFS_DFORK_NEXTENTS(). A future commit which extends inode's extent
>> counter fields will add more logic to this helper.
>> 
>> This commit also replaces direct accesses to xfs_dinode->di_[a]nextents
>> with calls to xfs_dfork_nextents().
>> 
>> No functional changes have been made.
>> 
>> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
>> ---
>>  db/bmap.c               |  6 ++--
>>  db/btdump.c             |  4 +--
>>  db/check.c              | 27 ++++++++++-------
>>  db/frag.c               |  6 ++--
>>  db/inode.c              | 14 +++++----
>>  db/metadump.c           |  4 +--
>>  libxfs/xfs_format.h     |  4 ---
>>  libxfs/xfs_inode_buf.c  | 43 +++++++++++++++++++++++----
>>  libxfs/xfs_inode_buf.h  |  2 ++
>>  libxfs/xfs_inode_fork.c | 11 ++++---
>>  repair/attr_repair.c    |  2 +-
>>  repair/bmap_repair.c    |  4 +--
>>  repair/dinode.c         | 66 ++++++++++++++++++++++++-----------------
>>  repair/prefetch.c       |  2 +-
>>  14 files changed, 123 insertions(+), 72 deletions(-)
>> 
>> diff --git a/db/bmap.c b/db/bmap.c
>> index 50f0474bc..5e1ab9258 100644
>> --- a/db/bmap.c
>> +++ b/db/bmap.c
>> @@ -68,7 +68,7 @@ bmap(
>>  	ASSERT(fmt == XFS_DINODE_FMT_LOCAL || fmt == XFS_DINODE_FMT_EXTENTS ||
>>  		fmt == XFS_DINODE_FMT_BTREE);
>>  	if (fmt == XFS_DINODE_FMT_EXTENTS) {
>> -		nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
>> +		nextents = xfs_dfork_nextents(mp, dip, whichfork);
>>  		xp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
>>  		for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
>>  			if (!bmap_one_extent(ep, &curoffset, eoffset, &n, bep))
>> @@ -158,9 +158,9 @@ bmap_f(
>>  		push_cur();
>>  		set_cur_inode(iocur_top->ino);
>>  		dip = iocur_top->data;
>> -		if (be32_to_cpu(dip->di_nextents))
>> +		if (xfs_dfork_nextents(mp, dip, XFS_DATA_FORK))
>>  			dfork = 1;
>> -		if (be16_to_cpu(dip->di_anextents))
>> +		if (xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK))
>>  			afork = 1;
>>  		pop_cur();
>>  	}
>> diff --git a/db/btdump.c b/db/btdump.c
>> index 920f595b4..59609fd2d 100644
>> --- a/db/btdump.c
>> +++ b/db/btdump.c
>> @@ -166,13 +166,13 @@ dump_inode(
>>  
>>  	dip = iocur_top->data;
>>  	if (attrfork) {
>> -		if (!dip->di_anextents ||
>> +		if (!xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) ||
>>  		    dip->di_aformat != XFS_DINODE_FMT_BTREE) {
>>  			dbprintf(_("attr fork not in btree format\n"));
>>  			return 0;
>>  		}
>>  	} else {
>> -		if (!dip->di_nextents ||
>> +		if (!xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) ||
>>  		    dip->di_format != XFS_DINODE_FMT_BTREE) {
>>  			dbprintf(_("data fork not in btree format\n"));
>>  			return 0;
>> diff --git a/db/check.c b/db/check.c
>> index 0d923e3ae..fe422e0ca 100644
>> --- a/db/check.c
>> +++ b/db/check.c
>> @@ -2720,7 +2720,7 @@ process_exinode(
>>  	xfs_bmbt_rec_t		*rp;
>>  
>>  	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
>> -	*nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>> +	*nex = xfs_dfork_nextents(mp, dip, whichfork);
>>  	if (*nex < 0 || *nex > XFS_DFORK_SIZE(dip, mp, whichfork) /
>>  						sizeof(xfs_bmbt_rec_t)) {
>>  		if (!sflag || id->ilist)
>> @@ -2744,12 +2744,14 @@ process_inode(
>>  	inodata_t		*id = NULL;
>>  	xfs_ino_t		ino;
>>  	xfs_extnum_t		nextents = 0;
>> +	xfs_extnum_t		dnextents;
>>  	int			security;
>>  	xfs_rfsblock_t		totblocks;
>>  	xfs_rfsblock_t		totdblocks = 0;
>>  	xfs_rfsblock_t		totiblocks = 0;
>>  	dbm_t			type;
>>  	xfs_extnum_t		anextents = 0;
>> +	xfs_extnum_t		danextents;
>>  	xfs_rfsblock_t		atotdblocks = 0;
>>  	xfs_rfsblock_t		atotiblocks = 0;
>>  	xfs_qcnt_t		bc = 0;
>> @@ -2878,14 +2880,17 @@ process_inode(
>>  		error++;
>>  		return;
>>  	}
>> +
>> +	dnextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
>> +	danextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
>> +
>>  	if (verbose || (id && id->ilist) || CHECK_BLIST(bno))
>>  		dbprintf(_("inode %lld mode %#o fmt %s "
>>  			 "afmt %s "
>>  			 "nex %d anex %d nblk %lld sz %lld%s%s%s%s%s%s%s\n"),
>>  			id->ino, mode, fmtnames[(int)dip->di_format],
>>  			fmtnames[(int)dip->di_aformat],
>> -			be32_to_cpu(dip->di_nextents),
>> -			be16_to_cpu(dip->di_anextents),
>> +			dnextents, danextents,
>>  			be64_to_cpu(dip->di_nblocks), be64_to_cpu(dip->di_size),
>>  			diflags & XFS_DIFLAG_REALTIME ? " rt" : "",
>>  			diflags & XFS_DIFLAG_PREALLOC ? " pre" : "",
>> @@ -2903,19 +2908,19 @@ process_inode(
>>  		if (xfs_sb_version_hasmetadir(&mp->m_sb) &&
>>  		    id->ino == mp->m_sb.sb_metadirino)
>>  			addlink_inode(id);
>> -		blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
>> +		blkmap = blkmap_alloc(dnextents);
>>  		break;
>>  	case S_IFREG:
>>  		if (diflags & XFS_DIFLAG_REALTIME)
>>  			type = DBM_RTDATA;
>>  		else if (id->ino == mp->m_sb.sb_rbmino) {
>>  			type = DBM_RTBITMAP;
>> -			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
>> +			blkmap = blkmap_alloc(dnextents);
>>  			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
>>  				addlink_inode(id);
>>  		} else if (id->ino == mp->m_sb.sb_rsumino) {
>>  			type = DBM_RTSUM;
>> -			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
>> +			blkmap = blkmap_alloc(dnextents);
>>  			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
>>  				addlink_inode(id);
>>  		}
>> @@ -2923,7 +2928,7 @@ process_inode(
>>  			 id->ino == mp->m_sb.sb_gquotino ||
>>  			 id->ino == mp->m_sb.sb_pquotino) {
>>  			type = DBM_QUOTA;
>> -			blkmap = blkmap_alloc(be32_to_cpu(dip->di_nextents));
>> +			blkmap = blkmap_alloc(dnextents);
>>  			if (!xfs_sb_version_hasmetadir(&mp->m_sb))
>>  				addlink_inode(id);
>>  		}
>> @@ -3006,17 +3011,17 @@ process_inode(
>>  				be64_to_cpu(dip->di_nblocks), id->ino, totblocks);
>>  		error++;
>>  	}
>> -	if (nextents != be32_to_cpu(dip->di_nextents)) {
>> +	if (nextents != dnextents) {
>>  		if (v)
>>  			dbprintf(_("bad nextents %d for inode %lld, counted %d\n"),
>> -				be32_to_cpu(dip->di_nextents), id->ino, nextents);
>> +				dnextents, id->ino, nextents);
>>  		error++;
>>  	}
>> -	if (anextents != be16_to_cpu(dip->di_anextents)) {
>> +	if (anextents != danextents) {
>>  		if (v)
>>  			dbprintf(_("bad anextents %d for inode %lld, counted "
>>  				 "%d\n"),
>> -				be16_to_cpu(dip->di_anextents), id->ino, anextents);
>> +				danextents, id->ino, anextents);
>>  		error++;
>>  	}
>>  	if (type == DBM_DIR)
>> diff --git a/db/frag.c b/db/frag.c
>> index 90fa2131c..3e43a9a21 100644
>> --- a/db/frag.c
>> +++ b/db/frag.c
>> @@ -262,9 +262,11 @@ process_exinode(
>>  	int			whichfork)
>>  {
>>  	xfs_bmbt_rec_t		*rp;
>> +	xfs_extnum_t		nextents;
>>  
>>  	rp = (xfs_bmbt_rec_t *)XFS_DFORK_PTR(dip, whichfork);
>> -	process_bmbt_reclist(rp, XFS_DFORK_NEXTENTS(dip, whichfork), extmapp);
>> +	nextents = xfs_dfork_nextents(mp, dip, whichfork);
>> +	process_bmbt_reclist(rp, nextents, extmapp);
>>  }
>>  
>>  static void
>> @@ -275,7 +277,7 @@ process_fork(
>>  	extmap_t	*extmap;
>>  	xfs_extnum_t	nex;
>>  
>> -	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>> +	nex = xfs_dfork_nextents(mp, dip, whichfork);
>>  	if (!nex)
>>  		return;
>>  	extmap = extmap_alloc(nex);
>> diff --git a/db/inode.c b/db/inode.c
>> index e59cff451..681f4f98a 100644
>> --- a/db/inode.c
>> +++ b/db/inode.c
>> @@ -278,7 +278,7 @@ inode_a_bmx_count(
>>  		return 0;
>>  	ASSERT((char *)XFS_DFORK_APTR(dip) - (char *)dip == byteize(startoff));
>>  	return dip->di_aformat == XFS_DINODE_FMT_EXTENTS ?
>> -		be16_to_cpu(dip->di_anextents) : 0;
>> +		xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK) : 0;
>>  }
>>  
>>  static int
>> @@ -332,6 +332,7 @@ inode_a_size(
>>  {
>>  	struct xfs_attr_shortform	*asf;
>>  	xfs_dinode_t			*dip;
>> +	xfs_extnum_t			nextents;
>>  
>>  	ASSERT(startoff == 0);
>>  	ASSERT(idx == 0);
>> @@ -341,8 +342,8 @@ inode_a_size(
>>  		asf = (struct xfs_attr_shortform *)XFS_DFORK_APTR(dip);
>>  		return bitize(be16_to_cpu(asf->hdr.totsize));
>>  	case XFS_DINODE_FMT_EXTENTS:
>> -		return (int)be16_to_cpu(dip->di_anextents) *
>> -							bitsz(xfs_bmbt_rec_t);
>> +		nextents = xfs_dfork_nextents(mp, dip, XFS_ATTR_FORK);
>> +		return (int)nextents * bitsz(xfs_bmbt_rec_t);
>
> I think you can drop the cast (and convert the typedef) her.
>
>>  	case XFS_DINODE_FMT_BTREE:
>>  		return bitize((int)XFS_DFORK_ASIZE(dip, mp));
>>  	default:
>> @@ -503,7 +504,7 @@ inode_u_bmx_count(
>>  	dip = obj;
>>  	ASSERT((char *)XFS_DFORK_DPTR(dip) - (char *)dip == byteize(startoff));
>>  	return dip->di_format == XFS_DINODE_FMT_EXTENTS ?
>> -		be32_to_cpu(dip->di_nextents) : 0;
>> +		xfs_dfork_nextents(mp, dip, XFS_DATA_FORK) : 0;
>>  }
>>  
>>  static int
>> @@ -589,6 +590,7 @@ inode_u_size(
>>  	int		idx)
>>  {
>>  	xfs_dinode_t	*dip;
>> +	xfs_extnum_t	nextents;
>>  
>>  	ASSERT(startoff == 0);
>>  	ASSERT(idx == 0);
>> @@ -599,8 +601,8 @@ inode_u_size(
>>  	case XFS_DINODE_FMT_LOCAL:
>>  		return bitize((int)be64_to_cpu(dip->di_size));
>>  	case XFS_DINODE_FMT_EXTENTS:
>> -		return (int)be32_to_cpu(dip->di_nextents) *
>> -						bitsz(xfs_bmbt_rec_t);
>> +		nextents = xfs_dfork_nextents(mp, dip, XFS_DATA_FORK);
>> +		return (int)nextents * bitsz(xfs_bmbt_rec_t);
>
> ...and here.
>

Ok. I will apply the two review comments before posting the next version.

> The rest of the db/repair changes look good.
>
> --D

-- 
chandan

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths
  2021-07-26 11:47 ` [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths Chandan Babu R
@ 2021-07-28 19:11   ` Darrick J. Wong
  2021-07-29  7:26     ` Chandan Babu R
  0 siblings, 1 reply; 19+ messages in thread
From: Darrick J. Wong @ 2021-07-28 19:11 UTC (permalink / raw)
  To: Chandan Babu R; +Cc: linux-xfs

On Mon, Jul 26, 2021 at 05:17:23PM +0530, Chandan Babu R wrote:
> This commit adds a new 64-bit per-inode data extent counter. However the
> maximum number of extents that a data fork can hold is limited to 2^48
> extents. This feature is available only when
> XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT feature bit is enabled on the
> filesystem. Also, enabling this feature bit causes attr fork extent counter to
> use the 32-bit extent counter that was previously used to hold the data fork
> extent counter. This implies that the attr fork can now occupy a maximum of
> 2^32 extents.
> 
> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
> ---
>  db/field.c                 |  4 ----
>  db/field.h                 |  2 --
>  db/inode.c                 | 30 +++++++++++++++++++++++++++---
>  include/libxlog.h          |  6 ++++--
>  libxfs/xfs_bmap.c          |  8 +++-----
>  libxfs/xfs_format.h        | 15 +++++++++++++--
>  libxfs/xfs_inode_buf.c     | 30 +++++++++++++++++++++++++-----
>  libxfs/xfs_inode_fork.h    | 18 ++++++++++++++----
>  libxfs/xfs_log_format.h    |  3 ++-
>  logprint/log_misc.c        | 23 ++++++++++++++++++-----
>  logprint/log_print_all.c   | 34 +++++++++++++++++++++++++++-------
>  logprint/log_print_trans.c |  2 +-
>  repair/bmap_repair.c       | 10 ++++++++--
>  repair/dinode.c            | 15 ++++++++++++---
>  14 files changed, 154 insertions(+), 46 deletions(-)
> 
> diff --git a/db/field.c b/db/field.c
> index 51268938a..1e274ffc4 100644
> --- a/db/field.c
> +++ b/db/field.c
> @@ -25,8 +25,6 @@
>  #include "symlink.h"
>  
>  const ftattr_t	ftattrtab[] = {
> -	{ FLDT_AEXTNUM, "aextnum", fp_num, "%d", SI(bitsz(xfs_aextnum_t)),
> -	  FTARG_SIGNED, NULL, NULL },
>  	{ FLDT_AGBLOCK, "agblock", fp_num, "%u", SI(bitsz(xfs_agblock_t)),
>  	  FTARG_DONULL, fa_agblock, NULL },
>  	{ FLDT_AGBLOCKNZ, "agblocknz", fp_num, "%u", SI(bitsz(xfs_agblock_t)),
> @@ -300,8 +298,6 @@ const ftattr_t	ftattrtab[] = {
>  	  FTARG_DONULL, fa_drtbno, NULL },
>  	{ FLDT_EXTLEN, "extlen", fp_num, "%u", SI(bitsz(xfs_extlen_t)), 0, NULL,
>  	  NULL },
> -	{ FLDT_EXTNUM, "extnum", fp_num, "%d", SI(bitsz(xfs_extnum_t)),
> -	  FTARG_SIGNED, NULL, NULL },
>  	{ FLDT_FSIZE, "fsize", fp_num, "%lld", SI(bitsz(xfs_fsize_t)),
>  	  FTARG_SIGNED, NULL, NULL },
>  	{ FLDT_INO, "ino", fp_num, "%llu", SI(bitsz(xfs_ino_t)), FTARG_DONULL,
> diff --git a/db/field.h b/db/field.h
> index 387c189ec..614fd0ab4 100644
> --- a/db/field.h
> +++ b/db/field.h
> @@ -5,7 +5,6 @@
>   */
>  
>  typedef enum fldt	{
> -	FLDT_AEXTNUM,
>  	FLDT_AGBLOCK,
>  	FLDT_AGBLOCKNZ,
>  	FLDT_AGF,
> @@ -143,7 +142,6 @@ typedef enum fldt	{
>  	FLDT_DRFSBNO,
>  	FLDT_DRTBNO,
>  	FLDT_EXTLEN,
> -	FLDT_EXTNUM,
>  	FLDT_FSIZE,
>  	FLDT_INO,
>  	FLDT_INOBT,
> diff --git a/db/inode.c b/db/inode.c
> index 27251f02f..6f941184c 100644
> --- a/db/inode.c
> +++ b/db/inode.c
> @@ -37,6 +37,8 @@ static int	inode_u_muuid_count(void *obj, int startoff);
>  static int	inode_u_sfdir2_count(void *obj, int startoff);
>  static int	inode_u_sfdir3_count(void *obj, int startoff);
>  static int	inode_u_symlink_count(void *obj, int startoff);
> +static int	inode_v3_64bitext_count(void *obj, int startoff);
> +static int	inode_v3_pad2_count(void *obj, int startoff);
>  
>  static const cmdinfo_t	inode_cmd =
>  	{ "inode", NULL, inode_f, 0, 1, 1, "[inode#]",
> @@ -100,8 +102,8 @@ const field_t	inode_core_flds[] = {
>  	{ "size", FLDT_FSIZE, OI(COFF(size)), C1, 0, TYP_NONE },
>  	{ "nblocks", FLDT_DRFSBNO, OI(COFF(nblocks)), C1, 0, TYP_NONE },
>  	{ "extsize", FLDT_EXTLEN, OI(COFF(extsize)), C1, 0, TYP_NONE },
> -	{ "nextents32", FLDT_EXTNUM, OI(COFF(nextents32)), C1, 0, TYP_NONE },
> -	{ "nextents16", FLDT_AEXTNUM, OI(COFF(nextents16)), C1, 0, TYP_NONE },
> +	{ "nextents32", FLDT_UINT32D, OI(COFF(nextents32)), C1, 0, TYP_NONE },
> +	{ "nextents16", FLDT_UINT16D, OI(COFF(nextents16)), C1, 0, TYP_NONE },
>  	{ "forkoff", FLDT_UINT8D, OI(COFF(forkoff)), C1, 0, TYP_NONE },
>  	{ "aformat", FLDT_DINODE_FMT, OI(COFF(aformat)), C1, 0, TYP_NONE },
>  	{ "dmevmask", FLDT_UINT32X, OI(COFF(dmevmask)), C1, 0, TYP_NONE },
> @@ -162,7 +164,10 @@ const field_t	inode_v3_flds[] = {
>  	{ "lsn", FLDT_UINT64X, OI(COFF(lsn)), C1, 0, TYP_NONE },
>  	{ "flags2", FLDT_UINT64X, OI(COFF(flags2)), C1, 0, TYP_NONE },
>  	{ "cowextsize", FLDT_EXTLEN, OI(COFF(cowextsize)), C1, 0, TYP_NONE },
> -	{ "pad2", FLDT_UINT8X, OI(OFF(pad2)), CI(12), FLD_ARRAY|FLD_SKIPALL, TYP_NONE },
> +	{ "nextents64", FLDT_UINT64D, OI(COFF(nextents64)),
> +	  inode_v3_64bitext_count, FLD_COUNT, TYP_NONE },
> +	{ "pad2", FLDT_UINT8X, OI(OFF(pad2)), inode_v3_pad2_count,
> +	  FLD_ARRAY|FLD_COUNT|FLD_SKIPALL, TYP_NONE },
>  	{ "crtime", FLDT_TIMESTAMP, OI(COFF(crtime)), C1, 0, TYP_NONE },
>  	{ "inumber", FLDT_INO, OI(COFF(ino)), C1, 0, TYP_NONE },
>  	{ "uuid", FLDT_UUID, OI(COFF(uuid)), C1, 0, TYP_NONE },
> @@ -410,6 +415,25 @@ inode_core_projid_count(
>  	return dic->di_version >= 2;
>  }
>  
> +static int
> +inode_v3_64bitext_count(
> +	void		*obj,
> +	int		startoff)
> +{
> +	return xfs_sb_version_hasextcount_64bit(&mp->m_sb);
> +}
> +
> +static int
> +inode_v3_pad2_count(
> +	void		*obj,
> +	int		startoff)
> +{
> +	if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +		return 4;
> +	else
> +		return 12;
> +}
> +
>  static int
>  inode_f(
>  	int		argc,
> diff --git a/include/libxlog.h b/include/libxlog.h
> index adaa9963c..fe30481cf 100644
> --- a/include/libxlog.h
> +++ b/include/libxlog.h
> @@ -89,13 +89,15 @@ extern int	xlog_find_tail(struct xlog *log, xfs_daddr_t *head_blk,
>  
>  extern int	xlog_recover(struct xlog *log, int readonly);
>  extern void	xlog_recover_print_data(char *p, int len);
> -extern void	xlog_recover_print_logitem(struct xlog_recover_item *item);
> +extern void	xlog_recover_print_logitem(struct xlog *log,
> +			struct xlog_recover_item *item);
>  extern void	xlog_recover_print_trans_head(struct xlog_recover *tr);
>  extern int	xlog_print_find_oldest(struct xlog *log, xfs_daddr_t *last_blk);
>  
>  /* for transactional view */
>  extern void	xlog_recover_print_trans_head(struct xlog_recover *tr);
> -extern void	xlog_recover_print_trans(struct xlog_recover *trans,
> +extern void	xlog_recover_print_trans(struct xlog *log,
> +				struct xlog_recover *trans,
>  				struct list_head *itemq, int print);
>  extern int	xlog_do_recovery_pass(struct xlog *log, xfs_daddr_t head_blk,
>  				xfs_daddr_t tail_blk, int pass);
> diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
> index dd60d8105..155d1e935 100644
> --- a/libxfs/xfs_bmap.c
> +++ b/libxfs/xfs_bmap.c
> @@ -47,18 +47,16 @@ xfs_bmap_compute_maxlevels(
>  	int		whichfork)	/* data or attr fork */
>  {
>  	xfs_extnum_t	maxleafents;	/* max leaf entries possible */
> +	uint64_t	maxblocks;	/* max blocks at this level */
>  	int		level;		/* btree level */
> -	uint		maxblocks;	/* max blocks at this level */
>  	int		maxrootrecs;	/* max records in root block */
>  	int		minleafrecs;	/* min records in leaf block */
>  	int		minnoderecs;	/* min records in node block */
>  	int		sz;		/* root block size */
>  
>  	/*
> -	 * The maximum number of extents in a file, hence the maximum number of
> -	 * leaf entries, is controlled by the size of the on-disk extent count,
> -	 * either a signed 32-bit number for the data fork, or a signed 16-bit
> -	 * number for the attr fork.
> +	 * The maximum number of extents in a fork, hence the maximum number of
> +         * leaf entries, is controlled by the size of the on-disk extent count.
>  	 *
>  	 * Note that we can no longer assume that if we are in ATTR1 that the
>  	 * fork offset of all the inodes will be
> diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
> index 6564bc135..db3085974 100644
> --- a/libxfs/xfs_format.h
> +++ b/libxfs/xfs_format.h
> @@ -485,13 +485,15 @@ xfs_sb_has_ro_compat_feature(
>  #define XFS_SB_FEAT_INCOMPAT_BIGTIME	(1 << 3)	/* large timestamps */
>  #define XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR (1 << 4)	/* needs xfs_repair */
>  #define XFS_SB_FEAT_INCOMPAT_METADIR	(1 << 5)	/* metadata dir tree */
> +#define XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT (1 << 6) 	/* 64-bit inode fork extent counters */

Extra space                                      here ^^^

>  #define XFS_SB_FEAT_INCOMPAT_ALL \
>  		(XFS_SB_FEAT_INCOMPAT_FTYPE|	\
>  		 XFS_SB_FEAT_INCOMPAT_SPINODES|	\
>  		 XFS_SB_FEAT_INCOMPAT_META_UUID| \
>  		 XFS_SB_FEAT_INCOMPAT_BIGTIME| \
>  		 XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR| \
> -		 XFS_SB_FEAT_INCOMPAT_METADIR)
> +		 XFS_SB_FEAT_INCOMPAT_METADIR| \
> +		 XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT)

Adding NREXT64 to XFS_SB_FEAT_INCOMPAT_ALL should be a separate patch
just prior to the mkfs patch so that anyone trying to bisect the kernel
or xfsprogs on a system with nrext64 enabled will not land in the middle
of your patchset.  We really do not want bisect runners to end up with
half-brained tools that think they can touch the filesystem.

>  #define XFS_SB_FEAT_INCOMPAT_UNKNOWN	~XFS_SB_FEAT_INCOMPAT_ALL
>  static inline bool
> @@ -591,6 +593,12 @@ static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp)
>  		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID);
>  }
>  
> +static inline bool xfs_sb_version_hasextcount_64bit(struct xfs_sb *sbp)
> +{
> +	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
> +		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT);
> +}
> +
>  static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp)
>  {
>  	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
> @@ -1057,7 +1065,8 @@ typedef struct xfs_dinode {
>  	__be64		di_lsn;		/* flush sequence */
>  	__be64		di_flags2;	/* more random flags */
>  	__be32		di_cowextsize;	/* basic cow extent size for file */
> -	__u8		di_pad2[12];	/* more padding for future expansion */
> +	__u8		di_pad2[4];	/* more padding for future expansion */
> +	__be64		di_nextents64;	/* 64-bit extent counter */
>  
>  	/* fields only written to during inode creation */
>  	xfs_timestamp_t	di_crtime;	/* time created */
> @@ -1113,6 +1122,8 @@ enum xfs_dinode_fmt {
>   * Max values for extlen, disk inode's extent counters.
>   */
>  #define	MAXEXTLEN		((uint32_t)0x1fffff) /* 21 bits */
> +#define XFS_IFORK_EXTCNT_MAXU48	((uint64_t)0xffffffffffff) /* Unsigned 48-bits */
> +#define XFS_IFORK_EXTCNT_MAXU32	((uint32_t)0xffffffff) 	/* Unsigned 32-bits */

Nit: extra space                                        here ^^^

--D

>  #define XFS_IFORK_EXTCNT_MAXS32 ((int32_t)0x7fffffff)  /* Signed 32-bits */
>  #define XFS_IFORK_EXTCNT_MAXS16 ((int16_t)0x7fff)      /* Signed 16-bits */
>  
> diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
> index 95fd95cc0..25877251f 100644
> --- a/libxfs/xfs_inode_buf.c
> +++ b/libxfs/xfs_inode_buf.c
> @@ -288,6 +288,7 @@ xfs_inode_to_disk(
>  	struct xfs_dinode	*to,
>  	xfs_lsn_t		lsn)
>  {
> +	struct xfs_sb		*sbp = &ip->i_mount->m_sb;
>  	struct inode		*inode = VFS_I(ip);
>  
>  	to->di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
> @@ -307,11 +308,9 @@ xfs_inode_to_disk(
>  	to->di_gen = cpu_to_be32(inode->i_generation);
>  	to->di_mode = cpu_to_be16(inode->i_mode);
>  
> -	to->di_size = cpu_to_be64(ip->i_disk_size);
> +        to->di_size = cpu_to_be64(ip->i_disk_size);
>  	to->di_nblocks = cpu_to_be64(ip->i_nblocks);
>  	to->di_extsize = cpu_to_be32(ip->i_extsize);
> -	to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
> -	to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
>  	to->di_forkoff = ip->i_forkoff;
>  	to->di_aformat = xfs_ifork_format(ip->i_afp);
>  	to->di_flags = cpu_to_be16(ip->i_diflags);
> @@ -331,6 +330,19 @@ xfs_inode_to_disk(
>  		to->di_version = 2;
>  		to->di_flushiter = cpu_to_be16(ip->i_flushiter);
>  	}
> +
> +	if (xfs_sb_version_hasextcount_64bit(sbp)) {
> +		to->di_nextents64 = cpu_to_be64(xfs_ifork_nextents(&ip->i_df));
> +		to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(ip->i_afp));
> +		/*
> +		 * xchk_dinode() passes an uninitialized disk inode. Hence,
> +		 * clear di_nextents16 field explicitly.
> +		 */
> +		to->di_nextents16 = cpu_to_be16(0);
> +	} else {
> +		to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
> +		to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
> +	}
>  }
>  
>  static xfs_failaddr_t
> @@ -383,14 +395,22 @@ xfs_dfork_nextents(
>  	xfs_extnum_t		*nextents)
>  {
>  	int			error = 0;
> +	bool			has_64bit_extcnt;
> +
> +	has_64bit_extcnt = xfs_sb_version_hasextcount_64bit(&mp->m_sb);
> +
> +	if (has_64bit_extcnt && dip->di_nextents16 != 0)
> +		return -EFSCORRUPTED;
>  
>  	switch (whichfork) {
>  	case XFS_DATA_FORK:
> -		*nextents = be32_to_cpu(dip->di_nextents32);
> +		*nextents = has_64bit_extcnt ? be64_to_cpu(dip->di_nextents64)
> +			: be32_to_cpu(dip->di_nextents32);
>  		break;
>  
>  	case XFS_ATTR_FORK:
> -		*nextents = be16_to_cpu(dip->di_nextents16);
> +		*nextents = has_64bit_extcnt ? be32_to_cpu(dip->di_nextents32)
> +			: be16_to_cpu(dip->di_nextents16);
>  		break;
>  
>  	default:
> diff --git a/libxfs/xfs_inode_fork.h b/libxfs/xfs_inode_fork.h
> index 1eda21636..cc8145941 100644
> --- a/libxfs/xfs_inode_fork.h
> +++ b/libxfs/xfs_inode_fork.h
> @@ -135,10 +135,20 @@ static inline int8_t xfs_ifork_format(struct xfs_ifork *ifp)
>  
>  static inline xfs_extnum_t xfs_iext_max(struct xfs_mount *mp, int whichfork)
>  {
> -	if (whichfork == XFS_DATA_FORK || whichfork == XFS_COW_FORK)
> -		return XFS_IFORK_EXTCNT_MAXS32;
> -	else
> -		return XFS_IFORK_EXTCNT_MAXS16;
> +	bool has_64bit_extcnt = xfs_sb_version_hasextcount_64bit(&mp->m_sb);
> +
> +	switch (whichfork) {
> +	case XFS_DATA_FORK:
> +	case XFS_COW_FORK:
> +		return has_64bit_extcnt ? XFS_IFORK_EXTCNT_MAXU48 : XFS_IFORK_EXTCNT_MAXS32;
> +
> +	case XFS_ATTR_FORK:
> +		return has_64bit_extcnt ? XFS_IFORK_EXTCNT_MAXU32 : XFS_IFORK_EXTCNT_MAXS16;
> +
> +	default:
> +		ASSERT(0);
> +		return 0;
> +	}
>  }
>  
>  struct xfs_ifork *xfs_ifork_alloc(enum xfs_dinode_fmt format,
> diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
> index ca8e4ad83..9b5d64708 100644
> --- a/libxfs/xfs_log_format.h
> +++ b/libxfs/xfs_log_format.h
> @@ -420,7 +420,8 @@ struct xfs_log_dinode {
>  	xfs_lsn_t	di_lsn;		/* flush sequence */
>  	uint64_t	di_flags2;	/* more random flags */
>  	uint32_t	di_cowextsize;	/* basic cow extent size for file */
> -	uint8_t		di_pad2[12];	/* more padding for future expansion */
> +	uint8_t		di_pad2[4];	/* more padding for future expansion */
> +	uint64_t	di_nextents64; /* higher part of data fork extent count */
>  
>  	/* fields only written to during inode creation */
>  	xfs_log_timestamp_t di_crtime;	/* time created */
> diff --git a/logprint/log_misc.c b/logprint/log_misc.c
> index 4e8760c43..1fb580c58 100644
> --- a/logprint/log_misc.c
> +++ b/logprint/log_misc.c
> @@ -438,8 +438,11 @@ xlog_print_trans_qoff(char **ptr, uint len)
>  
>  static void
>  xlog_print_trans_inode_core(
> +	struct xfs_mount	*mp,
>  	struct xfs_log_dinode	*ip)
>  {
> +    xfs_extnum_t		nextents;
> +
>      printf(_("INODE CORE\n"));
>      printf(_("magic 0x%hx mode 0%ho version %d format %d\n"),
>  	   ip->di_magic, ip->di_mode, (int)ip->di_version,
> @@ -450,11 +453,21 @@ xlog_print_trans_inode_core(
>  		xlog_extract_dinode_ts(ip->di_atime),
>  		xlog_extract_dinode_ts(ip->di_mtime),
>  		xlog_extract_dinode_ts(ip->di_ctime));
> -    printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%x\n"),
> +
> +    if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +	    nextents = ip->di_nextents64;
> +    else
> +	    nextents = ip->di_nextents32;
> +    printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%lx\n"),
>  	   (unsigned long long)ip->di_size, (unsigned long long)ip->di_nblocks,
> -	   ip->di_extsize, ip->di_nextents32);
> -    printf(_("naextents 0x%x forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
> -	   ip->di_nextents16, (int)ip->di_forkoff, ip->di_dmevmask,
> +	   ip->di_extsize, nextents);
> +
> +    if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +	    nextents = ip->di_nextents32;
> +    else
> +	    nextents = ip->di_nextents16;
> +    printf(_("naextents 0x%lx forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
> +	   nextents, (int)ip->di_forkoff, ip->di_dmevmask,
>  	   ip->di_dmstate);
>      printf(_("flags 0x%x gen 0x%x\n"),
>  	   ip->di_flags, ip->di_gen);
> @@ -564,7 +577,7 @@ xlog_print_trans_inode(
>      memmove(&dino, *ptr, sizeof(dino));
>      mode = dino.di_mode & S_IFMT;
>      size = (int)dino.di_size;
> -    xlog_print_trans_inode_core(&dino);
> +    xlog_print_trans_inode_core(log->l_mp, &dino);
>      *ptr += xfs_log_dinode_size(log->l_mp);
>      skip_count--;
>  
> diff --git a/logprint/log_print_all.c b/logprint/log_print_all.c
> index 403c56372..b528e1c57 100644
> --- a/logprint/log_print_all.c
> +++ b/logprint/log_print_all.c
> @@ -238,9 +238,14 @@ xlog_recover_print_dquot(
>  
>  STATIC void
>  xlog_recover_print_inode_core(
> +	struct xlog		*log,
>  	struct xfs_log_dinode	*di)
>  {
> -	printf(_("	CORE inode:\n"));
> +	struct xfs_sb		*sbp = &log->l_mp->m_sb;
> +	xfs_extnum_t		nextents;
> +	xfs_aextnum_t		anextents;
> +
> +        printf(_("	CORE inode:\n"));
>  	if (!print_inode)
>  		return;
>  	printf(_("		magic:%c%c  mode:0x%x  ver:%d  format:%d\n"),
> @@ -254,10 +259,21 @@ xlog_recover_print_inode_core(
>  			xlog_extract_dinode_ts(di->di_mtime),
>  			xlog_extract_dinode_ts(di->di_ctime));
>  	printf(_("		flushiter:%d\n"), di->di_flushiter);
> +
> +	if (xfs_sb_version_hasextcount_64bit(sbp))
> +		nextents = di->di_nextents64;
> +	else
> +		nextents = di->di_nextents32;
> +
> +	if (xfs_sb_version_hasextcount_64bit(sbp))
> +		anextents = di->di_nextents32;
> +	else
> +		anextents = di->di_nextents16;
> +
>  	printf(_("		size:0x%llx  nblks:0x%llx  exsize:%d  "
> -	     "nextents:%d  anextents:%d\n"), (unsigned long long)
> +	     "nextents:%lu  anextents:%u\n"), (unsigned long long)
>  	       di->di_size, (unsigned long long)di->di_nblocks,
> -	       di->di_extsize, di->di_nextents32, (int)di->di_nextents16);
> +	       di->di_extsize, nextents, anextents);
>  	printf(_("		forkoff:%d  dmevmask:0x%x  dmstate:%d  flags:0x%x  "
>  	     "gen:%u\n"),
>  	       (int)di->di_forkoff, di->di_dmevmask, (int)di->di_dmstate,
> @@ -270,6 +286,7 @@ xlog_recover_print_inode_core(
>  
>  STATIC void
>  xlog_recover_print_inode(
> +	struct xlog		*log,
>  	struct xlog_recover_item *item)
>  {
>  	struct xfs_inode_log_format	f_buf;
> @@ -291,7 +308,7 @@ xlog_recover_print_inode(
>  	ASSERT(item->ri_buf[1].i_len ==
>  			offsetof(struct xfs_log_dinode, di_next_unlinked) ||
>  	       item->ri_buf[1].i_len == sizeof(struct xfs_log_dinode));
> -	xlog_recover_print_inode_core((struct xfs_log_dinode *)
> +	xlog_recover_print_inode_core(log, (struct xfs_log_dinode *)
>  				      item->ri_buf[1].i_addr);
>  
>  	hasdata = (f->ilf_fields & XFS_ILOG_DFORK) != 0;
> @@ -386,6 +403,7 @@ xlog_recover_print_icreate(
>  
>  void
>  xlog_recover_print_logitem(
> +	struct xlog			*log,
>  	struct xlog_recover_item	*item)
>  {
>  	switch (ITEM_TYPE(item)) {
> @@ -396,7 +414,7 @@ xlog_recover_print_logitem(
>  		xlog_recover_print_icreate(item);
>  		break;
>  	case XFS_LI_INODE:
> -		xlog_recover_print_inode(item);
> +		xlog_recover_print_inode(log, item);
>  		break;
>  	case XFS_LI_EFD:
>  		xlog_recover_print_efd(item);
> @@ -442,6 +460,7 @@ xlog_recover_print_logitem(
>  
>  static void
>  xlog_recover_print_item(
> +	struct xlog		*log,
>  	struct xlog_recover_item *item)
>  {
>  	int			i;
> @@ -507,11 +526,12 @@ xlog_recover_print_item(
>  		       (long)item->ri_buf[i].i_addr, item->ri_buf[i].i_len);
>  	}
>  	printf("\n");
> -	xlog_recover_print_logitem(item);
> +	xlog_recover_print_logitem(log, item);
>  }
>  
>  void
>  xlog_recover_print_trans(
> +	struct xlog		*log,
>  	struct xlog_recover	*trans,
>  	struct list_head	*itemq,
>  	int			print)
> @@ -524,5 +544,5 @@ xlog_recover_print_trans(
>  	print_xlog_record_line();
>  	xlog_recover_print_trans_head(trans);
>  	list_for_each_entry(item, itemq, ri_list)
> -		xlog_recover_print_item(item);
> +		xlog_recover_print_item(log, item);
>  }
> diff --git a/logprint/log_print_trans.c b/logprint/log_print_trans.c
> index 2004b5a0e..c6386fb0c 100644
> --- a/logprint/log_print_trans.c
> +++ b/logprint/log_print_trans.c
> @@ -24,7 +24,7 @@ xlog_recover_do_trans(
>  	struct xlog_recover	*trans,
>  	int			pass)
>  {
> -	xlog_recover_print_trans(trans, &trans->r_itemq, 3);
> +	xlog_recover_print_trans(log, trans, &trans->r_itemq, 3);
>  	return 0;
>  }
>  
> diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
> index f41a18f00..a9fca82f1 100644
> --- a/repair/bmap_repair.c
> +++ b/repair/bmap_repair.c
> @@ -536,7 +536,10 @@ rebuild_bmap(
>  		if (nextents == 0)
>  			return 0;
>  		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
> -		(*dinop)->di_nextents32 = 0;
> +		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +			(*dinop)->di_nextents64 = cpu_to_be64(0);
> +		else
> +			(*dinop)->di_nextents32 = cpu_to_be32(0);
>  		libxfs_dinode_calc_crc(mp, *dinop);
>  		*dirty = 1;
>  		break;
> @@ -547,7 +550,10 @@ rebuild_bmap(
>  		if (nextents == 0)
>  			return 0;
>  		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
> -		(*dinop)->di_nextents16 = 0;
> +		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +			(*dinop)->di_nextents32 = cpu_to_be32(0);
> +		else
> +			(*dinop)->di_nextents16 = cpu_to_be16(0);
>  		libxfs_dinode_calc_crc(mp, *dinop);
>  		*dirty = 1;
>  		break;
> diff --git a/repair/dinode.c b/repair/dinode.c
> index beeb9ed07..5d2dff70a 100644
> --- a/repair/dinode.c
> +++ b/repair/dinode.c
> @@ -78,7 +78,10 @@ _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
>  	if (anextents != 0) {
>  		if (no_modify)
>  			return(1);
> -		dino->di_nextents16 = cpu_to_be16(0);
> +		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +			dino->di_nextents32 = cpu_to_be32(0);
> +		else
> +			dino->di_nextents16 = cpu_to_be16(0);
>  	}
>  
>  	if (dino->di_aformat != XFS_DINODE_FMT_EXTENTS)  {
> @@ -1870,7 +1873,10 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>  			do_warn(
>  _("correcting nextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
>  				lino, dnextents, nextents);
> -			dino->di_nextents32 = cpu_to_be32(nextents);
> +			if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +				dino->di_nextents64 = cpu_to_be64(nextents);
> +			else
> +				dino->di_nextents32 = cpu_to_be32(nextents);
>  			*dirty = 1;
>  		} else  {
>  			do_warn(
> @@ -1894,7 +1900,10 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>  			do_warn(
>  _("correcting anextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
>  				lino, dnextents, anextents);
> -			dino->di_nextents16 = cpu_to_be16(anextents);
> +			if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
> +				dino->di_nextents32 = cpu_to_be32(anextents);
> +			else
> +				dino->di_nextents16 = cpu_to_be16(anextents);
>  			*dirty = 1;
>  		} else  {
>  			do_warn(
> -- 
> 2.30.2
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths
  2021-07-28 19:11   ` Darrick J. Wong
@ 2021-07-29  7:26     ` Chandan Babu R
  0 siblings, 0 replies; 19+ messages in thread
From: Chandan Babu R @ 2021-07-29  7:26 UTC (permalink / raw)
  To: Darrick J. Wong; +Cc: linux-xfs

On 29 Jul 2021 at 00:41, Darrick J. Wong wrote:
> On Mon, Jul 26, 2021 at 05:17:23PM +0530, Chandan Babu R wrote:
>> This commit adds a new 64-bit per-inode data extent counter. However the
>> maximum number of extents that a data fork can hold is limited to 2^48
>> extents. This feature is available only when
>> XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT feature bit is enabled on the
>> filesystem. Also, enabling this feature bit causes attr fork extent counter to
>> use the 32-bit extent counter that was previously used to hold the data fork
>> extent counter. This implies that the attr fork can now occupy a maximum of
>> 2^32 extents.
>> 
>> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
>> ---
>>  db/field.c                 |  4 ----
>>  db/field.h                 |  2 --
>>  db/inode.c                 | 30 +++++++++++++++++++++++++++---
>>  include/libxlog.h          |  6 ++++--
>>  libxfs/xfs_bmap.c          |  8 +++-----
>>  libxfs/xfs_format.h        | 15 +++++++++++++--
>>  libxfs/xfs_inode_buf.c     | 30 +++++++++++++++++++++++++-----
>>  libxfs/xfs_inode_fork.h    | 18 ++++++++++++++----
>>  libxfs/xfs_log_format.h    |  3 ++-
>>  logprint/log_misc.c        | 23 ++++++++++++++++++-----
>>  logprint/log_print_all.c   | 34 +++++++++++++++++++++++++++-------
>>  logprint/log_print_trans.c |  2 +-
>>  repair/bmap_repair.c       | 10 ++++++++--
>>  repair/dinode.c            | 15 ++++++++++++---
>>  14 files changed, 154 insertions(+), 46 deletions(-)
>> 
>> diff --git a/db/field.c b/db/field.c
>> index 51268938a..1e274ffc4 100644
>> --- a/db/field.c
>> +++ b/db/field.c
>> @@ -25,8 +25,6 @@
>>  #include "symlink.h"
>>  
>>  const ftattr_t	ftattrtab[] = {
>> -	{ FLDT_AEXTNUM, "aextnum", fp_num, "%d", SI(bitsz(xfs_aextnum_t)),
>> -	  FTARG_SIGNED, NULL, NULL },
>>  	{ FLDT_AGBLOCK, "agblock", fp_num, "%u", SI(bitsz(xfs_agblock_t)),
>>  	  FTARG_DONULL, fa_agblock, NULL },
>>  	{ FLDT_AGBLOCKNZ, "agblocknz", fp_num, "%u", SI(bitsz(xfs_agblock_t)),
>> @@ -300,8 +298,6 @@ const ftattr_t	ftattrtab[] = {
>>  	  FTARG_DONULL, fa_drtbno, NULL },
>>  	{ FLDT_EXTLEN, "extlen", fp_num, "%u", SI(bitsz(xfs_extlen_t)), 0, NULL,
>>  	  NULL },
>> -	{ FLDT_EXTNUM, "extnum", fp_num, "%d", SI(bitsz(xfs_extnum_t)),
>> -	  FTARG_SIGNED, NULL, NULL },
>>  	{ FLDT_FSIZE, "fsize", fp_num, "%lld", SI(bitsz(xfs_fsize_t)),
>>  	  FTARG_SIGNED, NULL, NULL },
>>  	{ FLDT_INO, "ino", fp_num, "%llu", SI(bitsz(xfs_ino_t)), FTARG_DONULL,
>> diff --git a/db/field.h b/db/field.h
>> index 387c189ec..614fd0ab4 100644
>> --- a/db/field.h
>> +++ b/db/field.h
>> @@ -5,7 +5,6 @@
>>   */
>>  
>>  typedef enum fldt	{
>> -	FLDT_AEXTNUM,
>>  	FLDT_AGBLOCK,
>>  	FLDT_AGBLOCKNZ,
>>  	FLDT_AGF,
>> @@ -143,7 +142,6 @@ typedef enum fldt	{
>>  	FLDT_DRFSBNO,
>>  	FLDT_DRTBNO,
>>  	FLDT_EXTLEN,
>> -	FLDT_EXTNUM,
>>  	FLDT_FSIZE,
>>  	FLDT_INO,
>>  	FLDT_INOBT,
>> diff --git a/db/inode.c b/db/inode.c
>> index 27251f02f..6f941184c 100644
>> --- a/db/inode.c
>> +++ b/db/inode.c
>> @@ -37,6 +37,8 @@ static int	inode_u_muuid_count(void *obj, int startoff);
>>  static int	inode_u_sfdir2_count(void *obj, int startoff);
>>  static int	inode_u_sfdir3_count(void *obj, int startoff);
>>  static int	inode_u_symlink_count(void *obj, int startoff);
>> +static int	inode_v3_64bitext_count(void *obj, int startoff);
>> +static int	inode_v3_pad2_count(void *obj, int startoff);
>>  
>>  static const cmdinfo_t	inode_cmd =
>>  	{ "inode", NULL, inode_f, 0, 1, 1, "[inode#]",
>> @@ -100,8 +102,8 @@ const field_t	inode_core_flds[] = {
>>  	{ "size", FLDT_FSIZE, OI(COFF(size)), C1, 0, TYP_NONE },
>>  	{ "nblocks", FLDT_DRFSBNO, OI(COFF(nblocks)), C1, 0, TYP_NONE },
>>  	{ "extsize", FLDT_EXTLEN, OI(COFF(extsize)), C1, 0, TYP_NONE },
>> -	{ "nextents32", FLDT_EXTNUM, OI(COFF(nextents32)), C1, 0, TYP_NONE },
>> -	{ "nextents16", FLDT_AEXTNUM, OI(COFF(nextents16)), C1, 0, TYP_NONE },
>> +	{ "nextents32", FLDT_UINT32D, OI(COFF(nextents32)), C1, 0, TYP_NONE },
>> +	{ "nextents16", FLDT_UINT16D, OI(COFF(nextents16)), C1, 0, TYP_NONE },
>>  	{ "forkoff", FLDT_UINT8D, OI(COFF(forkoff)), C1, 0, TYP_NONE },
>>  	{ "aformat", FLDT_DINODE_FMT, OI(COFF(aformat)), C1, 0, TYP_NONE },
>>  	{ "dmevmask", FLDT_UINT32X, OI(COFF(dmevmask)), C1, 0, TYP_NONE },
>> @@ -162,7 +164,10 @@ const field_t	inode_v3_flds[] = {
>>  	{ "lsn", FLDT_UINT64X, OI(COFF(lsn)), C1, 0, TYP_NONE },
>>  	{ "flags2", FLDT_UINT64X, OI(COFF(flags2)), C1, 0, TYP_NONE },
>>  	{ "cowextsize", FLDT_EXTLEN, OI(COFF(cowextsize)), C1, 0, TYP_NONE },
>> -	{ "pad2", FLDT_UINT8X, OI(OFF(pad2)), CI(12), FLD_ARRAY|FLD_SKIPALL, TYP_NONE },
>> +	{ "nextents64", FLDT_UINT64D, OI(COFF(nextents64)),
>> +	  inode_v3_64bitext_count, FLD_COUNT, TYP_NONE },
>> +	{ "pad2", FLDT_UINT8X, OI(OFF(pad2)), inode_v3_pad2_count,
>> +	  FLD_ARRAY|FLD_COUNT|FLD_SKIPALL, TYP_NONE },
>>  	{ "crtime", FLDT_TIMESTAMP, OI(COFF(crtime)), C1, 0, TYP_NONE },
>>  	{ "inumber", FLDT_INO, OI(COFF(ino)), C1, 0, TYP_NONE },
>>  	{ "uuid", FLDT_UUID, OI(COFF(uuid)), C1, 0, TYP_NONE },
>> @@ -410,6 +415,25 @@ inode_core_projid_count(
>>  	return dic->di_version >= 2;
>>  }
>>  
>> +static int
>> +inode_v3_64bitext_count(
>> +	void		*obj,
>> +	int		startoff)
>> +{
>> +	return xfs_sb_version_hasextcount_64bit(&mp->m_sb);
>> +}
>> +
>> +static int
>> +inode_v3_pad2_count(
>> +	void		*obj,
>> +	int		startoff)
>> +{
>> +	if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +		return 4;
>> +	else
>> +		return 12;
>> +}
>> +
>>  static int
>>  inode_f(
>>  	int		argc,
>> diff --git a/include/libxlog.h b/include/libxlog.h
>> index adaa9963c..fe30481cf 100644
>> --- a/include/libxlog.h
>> +++ b/include/libxlog.h
>> @@ -89,13 +89,15 @@ extern int	xlog_find_tail(struct xlog *log, xfs_daddr_t *head_blk,
>>  
>>  extern int	xlog_recover(struct xlog *log, int readonly);
>>  extern void	xlog_recover_print_data(char *p, int len);
>> -extern void	xlog_recover_print_logitem(struct xlog_recover_item *item);
>> +extern void	xlog_recover_print_logitem(struct xlog *log,
>> +			struct xlog_recover_item *item);
>>  extern void	xlog_recover_print_trans_head(struct xlog_recover *tr);
>>  extern int	xlog_print_find_oldest(struct xlog *log, xfs_daddr_t *last_blk);
>>  
>>  /* for transactional view */
>>  extern void	xlog_recover_print_trans_head(struct xlog_recover *tr);
>> -extern void	xlog_recover_print_trans(struct xlog_recover *trans,
>> +extern void	xlog_recover_print_trans(struct xlog *log,
>> +				struct xlog_recover *trans,
>>  				struct list_head *itemq, int print);
>>  extern int	xlog_do_recovery_pass(struct xlog *log, xfs_daddr_t head_blk,
>>  				xfs_daddr_t tail_blk, int pass);
>> diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
>> index dd60d8105..155d1e935 100644
>> --- a/libxfs/xfs_bmap.c
>> +++ b/libxfs/xfs_bmap.c
>> @@ -47,18 +47,16 @@ xfs_bmap_compute_maxlevels(
>>  	int		whichfork)	/* data or attr fork */
>>  {
>>  	xfs_extnum_t	maxleafents;	/* max leaf entries possible */
>> +	uint64_t	maxblocks;	/* max blocks at this level */
>>  	int		level;		/* btree level */
>> -	uint		maxblocks;	/* max blocks at this level */
>>  	int		maxrootrecs;	/* max records in root block */
>>  	int		minleafrecs;	/* min records in leaf block */
>>  	int		minnoderecs;	/* min records in node block */
>>  	int		sz;		/* root block size */
>>  
>>  	/*
>> -	 * The maximum number of extents in a file, hence the maximum number of
>> -	 * leaf entries, is controlled by the size of the on-disk extent count,
>> -	 * either a signed 32-bit number for the data fork, or a signed 16-bit
>> -	 * number for the attr fork.
>> +	 * The maximum number of extents in a fork, hence the maximum number of
>> +         * leaf entries, is controlled by the size of the on-disk extent count.
>>  	 *
>>  	 * Note that we can no longer assume that if we are in ATTR1 that the
>>  	 * fork offset of all the inodes will be
>> diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
>> index 6564bc135..db3085974 100644
>> --- a/libxfs/xfs_format.h
>> +++ b/libxfs/xfs_format.h
>> @@ -485,13 +485,15 @@ xfs_sb_has_ro_compat_feature(
>>  #define XFS_SB_FEAT_INCOMPAT_BIGTIME	(1 << 3)	/* large timestamps */
>>  #define XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR (1 << 4)	/* needs xfs_repair */
>>  #define XFS_SB_FEAT_INCOMPAT_METADIR	(1 << 5)	/* metadata dir tree */
>> +#define XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT (1 << 6) 	/* 64-bit inode fork extent counters */
>
> Extra space                                      here ^^^
>
>>  #define XFS_SB_FEAT_INCOMPAT_ALL \
>>  		(XFS_SB_FEAT_INCOMPAT_FTYPE|	\
>>  		 XFS_SB_FEAT_INCOMPAT_SPINODES|	\
>>  		 XFS_SB_FEAT_INCOMPAT_META_UUID| \
>>  		 XFS_SB_FEAT_INCOMPAT_BIGTIME| \
>>  		 XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR| \
>> -		 XFS_SB_FEAT_INCOMPAT_METADIR)
>> +		 XFS_SB_FEAT_INCOMPAT_METADIR| \
>> +		 XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT)
>
> Adding NREXT64 to XFS_SB_FEAT_INCOMPAT_ALL should be a separate patch
> just prior to the mkfs patch so that anyone trying to bisect the kernel
> or xfsprogs on a system with nrext64 enabled will not land in the middle
> of your patchset.  We really do not want bisect runners to end up with
> half-brained tools that think they can touch the filesystem.

Ok. I will fix that and the other two nits pointed out by you.

Thanks for the review.

>
>>  #define XFS_SB_FEAT_INCOMPAT_UNKNOWN	~XFS_SB_FEAT_INCOMPAT_ALL
>>  static inline bool
>> @@ -591,6 +593,12 @@ static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp)
>>  		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID);
>>  }
>>  
>> +static inline bool xfs_sb_version_hasextcount_64bit(struct xfs_sb *sbp)
>> +{
>> +	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
>> +		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_EXTCOUNT_64BIT);
>> +}
>> +
>>  static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp)
>>  {
>>  	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
>> @@ -1057,7 +1065,8 @@ typedef struct xfs_dinode {
>>  	__be64		di_lsn;		/* flush sequence */
>>  	__be64		di_flags2;	/* more random flags */
>>  	__be32		di_cowextsize;	/* basic cow extent size for file */
>> -	__u8		di_pad2[12];	/* more padding for future expansion */
>> +	__u8		di_pad2[4];	/* more padding for future expansion */
>> +	__be64		di_nextents64;	/* 64-bit extent counter */
>>  
>>  	/* fields only written to during inode creation */
>>  	xfs_timestamp_t	di_crtime;	/* time created */
>> @@ -1113,6 +1122,8 @@ enum xfs_dinode_fmt {
>>   * Max values for extlen, disk inode's extent counters.
>>   */
>>  #define	MAXEXTLEN		((uint32_t)0x1fffff) /* 21 bits */
>> +#define XFS_IFORK_EXTCNT_MAXU48	((uint64_t)0xffffffffffff) /* Unsigned 48-bits */
>> +#define XFS_IFORK_EXTCNT_MAXU32	((uint32_t)0xffffffff) 	/* Unsigned 32-bits */
>
> Nit: extra space                                        here ^^^
>
> --D
>
>>  #define XFS_IFORK_EXTCNT_MAXS32 ((int32_t)0x7fffffff)  /* Signed 32-bits */
>>  #define XFS_IFORK_EXTCNT_MAXS16 ((int16_t)0x7fff)      /* Signed 16-bits */
>>  
>> diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
>> index 95fd95cc0..25877251f 100644
>> --- a/libxfs/xfs_inode_buf.c
>> +++ b/libxfs/xfs_inode_buf.c
>> @@ -288,6 +288,7 @@ xfs_inode_to_disk(
>>  	struct xfs_dinode	*to,
>>  	xfs_lsn_t		lsn)
>>  {
>> +	struct xfs_sb		*sbp = &ip->i_mount->m_sb;
>>  	struct inode		*inode = VFS_I(ip);
>>  
>>  	to->di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
>> @@ -307,11 +308,9 @@ xfs_inode_to_disk(
>>  	to->di_gen = cpu_to_be32(inode->i_generation);
>>  	to->di_mode = cpu_to_be16(inode->i_mode);
>>  
>> -	to->di_size = cpu_to_be64(ip->i_disk_size);
>> +        to->di_size = cpu_to_be64(ip->i_disk_size);
>>  	to->di_nblocks = cpu_to_be64(ip->i_nblocks);
>>  	to->di_extsize = cpu_to_be32(ip->i_extsize);
>> -	to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
>> -	to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
>>  	to->di_forkoff = ip->i_forkoff;
>>  	to->di_aformat = xfs_ifork_format(ip->i_afp);
>>  	to->di_flags = cpu_to_be16(ip->i_diflags);
>> @@ -331,6 +330,19 @@ xfs_inode_to_disk(
>>  		to->di_version = 2;
>>  		to->di_flushiter = cpu_to_be16(ip->i_flushiter);
>>  	}
>> +
>> +	if (xfs_sb_version_hasextcount_64bit(sbp)) {
>> +		to->di_nextents64 = cpu_to_be64(xfs_ifork_nextents(&ip->i_df));
>> +		to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(ip->i_afp));
>> +		/*
>> +		 * xchk_dinode() passes an uninitialized disk inode. Hence,
>> +		 * clear di_nextents16 field explicitly.
>> +		 */
>> +		to->di_nextents16 = cpu_to_be16(0);
>> +	} else {
>> +		to->di_nextents32 = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
>> +		to->di_nextents16 = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
>> +	}
>>  }
>>  
>>  static xfs_failaddr_t
>> @@ -383,14 +395,22 @@ xfs_dfork_nextents(
>>  	xfs_extnum_t		*nextents)
>>  {
>>  	int			error = 0;
>> +	bool			has_64bit_extcnt;
>> +
>> +	has_64bit_extcnt = xfs_sb_version_hasextcount_64bit(&mp->m_sb);
>> +
>> +	if (has_64bit_extcnt && dip->di_nextents16 != 0)
>> +		return -EFSCORRUPTED;
>>  
>>  	switch (whichfork) {
>>  	case XFS_DATA_FORK:
>> -		*nextents = be32_to_cpu(dip->di_nextents32);
>> +		*nextents = has_64bit_extcnt ? be64_to_cpu(dip->di_nextents64)
>> +			: be32_to_cpu(dip->di_nextents32);
>>  		break;
>>  
>>  	case XFS_ATTR_FORK:
>> -		*nextents = be16_to_cpu(dip->di_nextents16);
>> +		*nextents = has_64bit_extcnt ? be32_to_cpu(dip->di_nextents32)
>> +			: be16_to_cpu(dip->di_nextents16);
>>  		break;
>>  
>>  	default:
>> diff --git a/libxfs/xfs_inode_fork.h b/libxfs/xfs_inode_fork.h
>> index 1eda21636..cc8145941 100644
>> --- a/libxfs/xfs_inode_fork.h
>> +++ b/libxfs/xfs_inode_fork.h
>> @@ -135,10 +135,20 @@ static inline int8_t xfs_ifork_format(struct xfs_ifork *ifp)
>>  
>>  static inline xfs_extnum_t xfs_iext_max(struct xfs_mount *mp, int whichfork)
>>  {
>> -	if (whichfork == XFS_DATA_FORK || whichfork == XFS_COW_FORK)
>> -		return XFS_IFORK_EXTCNT_MAXS32;
>> -	else
>> -		return XFS_IFORK_EXTCNT_MAXS16;
>> +	bool has_64bit_extcnt = xfs_sb_version_hasextcount_64bit(&mp->m_sb);
>> +
>> +	switch (whichfork) {
>> +	case XFS_DATA_FORK:
>> +	case XFS_COW_FORK:
>> +		return has_64bit_extcnt ? XFS_IFORK_EXTCNT_MAXU48 : XFS_IFORK_EXTCNT_MAXS32;
>> +
>> +	case XFS_ATTR_FORK:
>> +		return has_64bit_extcnt ? XFS_IFORK_EXTCNT_MAXU32 : XFS_IFORK_EXTCNT_MAXS16;
>> +
>> +	default:
>> +		ASSERT(0);
>> +		return 0;
>> +	}
>>  }
>>  
>>  struct xfs_ifork *xfs_ifork_alloc(enum xfs_dinode_fmt format,
>> diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
>> index ca8e4ad83..9b5d64708 100644
>> --- a/libxfs/xfs_log_format.h
>> +++ b/libxfs/xfs_log_format.h
>> @@ -420,7 +420,8 @@ struct xfs_log_dinode {
>>  	xfs_lsn_t	di_lsn;		/* flush sequence */
>>  	uint64_t	di_flags2;	/* more random flags */
>>  	uint32_t	di_cowextsize;	/* basic cow extent size for file */
>> -	uint8_t		di_pad2[12];	/* more padding for future expansion */
>> +	uint8_t		di_pad2[4];	/* more padding for future expansion */
>> +	uint64_t	di_nextents64; /* higher part of data fork extent count */
>>  
>>  	/* fields only written to during inode creation */
>>  	xfs_log_timestamp_t di_crtime;	/* time created */
>> diff --git a/logprint/log_misc.c b/logprint/log_misc.c
>> index 4e8760c43..1fb580c58 100644
>> --- a/logprint/log_misc.c
>> +++ b/logprint/log_misc.c
>> @@ -438,8 +438,11 @@ xlog_print_trans_qoff(char **ptr, uint len)
>>  
>>  static void
>>  xlog_print_trans_inode_core(
>> +	struct xfs_mount	*mp,
>>  	struct xfs_log_dinode	*ip)
>>  {
>> +    xfs_extnum_t		nextents;
>> +
>>      printf(_("INODE CORE\n"));
>>      printf(_("magic 0x%hx mode 0%ho version %d format %d\n"),
>>  	   ip->di_magic, ip->di_mode, (int)ip->di_version,
>> @@ -450,11 +453,21 @@ xlog_print_trans_inode_core(
>>  		xlog_extract_dinode_ts(ip->di_atime),
>>  		xlog_extract_dinode_ts(ip->di_mtime),
>>  		xlog_extract_dinode_ts(ip->di_ctime));
>> -    printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%x\n"),
>> +
>> +    if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +	    nextents = ip->di_nextents64;
>> +    else
>> +	    nextents = ip->di_nextents32;
>> +    printf(_("size 0x%llx nblocks 0x%llx extsize 0x%x nextents 0x%lx\n"),
>>  	   (unsigned long long)ip->di_size, (unsigned long long)ip->di_nblocks,
>> -	   ip->di_extsize, ip->di_nextents32);
>> -    printf(_("naextents 0x%x forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
>> -	   ip->di_nextents16, (int)ip->di_forkoff, ip->di_dmevmask,
>> +	   ip->di_extsize, nextents);
>> +
>> +    if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +	    nextents = ip->di_nextents32;
>> +    else
>> +	    nextents = ip->di_nextents16;
>> +    printf(_("naextents 0x%lx forkoff %d dmevmask 0x%x dmstate 0x%hx\n"),
>> +	   nextents, (int)ip->di_forkoff, ip->di_dmevmask,
>>  	   ip->di_dmstate);
>>      printf(_("flags 0x%x gen 0x%x\n"),
>>  	   ip->di_flags, ip->di_gen);
>> @@ -564,7 +577,7 @@ xlog_print_trans_inode(
>>      memmove(&dino, *ptr, sizeof(dino));
>>      mode = dino.di_mode & S_IFMT;
>>      size = (int)dino.di_size;
>> -    xlog_print_trans_inode_core(&dino);
>> +    xlog_print_trans_inode_core(log->l_mp, &dino);
>>      *ptr += xfs_log_dinode_size(log->l_mp);
>>      skip_count--;
>>  
>> diff --git a/logprint/log_print_all.c b/logprint/log_print_all.c
>> index 403c56372..b528e1c57 100644
>> --- a/logprint/log_print_all.c
>> +++ b/logprint/log_print_all.c
>> @@ -238,9 +238,14 @@ xlog_recover_print_dquot(
>>  
>>  STATIC void
>>  xlog_recover_print_inode_core(
>> +	struct xlog		*log,
>>  	struct xfs_log_dinode	*di)
>>  {
>> -	printf(_("	CORE inode:\n"));
>> +	struct xfs_sb		*sbp = &log->l_mp->m_sb;
>> +	xfs_extnum_t		nextents;
>> +	xfs_aextnum_t		anextents;
>> +
>> +        printf(_("	CORE inode:\n"));
>>  	if (!print_inode)
>>  		return;
>>  	printf(_("		magic:%c%c  mode:0x%x  ver:%d  format:%d\n"),
>> @@ -254,10 +259,21 @@ xlog_recover_print_inode_core(
>>  			xlog_extract_dinode_ts(di->di_mtime),
>>  			xlog_extract_dinode_ts(di->di_ctime));
>>  	printf(_("		flushiter:%d\n"), di->di_flushiter);
>> +
>> +	if (xfs_sb_version_hasextcount_64bit(sbp))
>> +		nextents = di->di_nextents64;
>> +	else
>> +		nextents = di->di_nextents32;
>> +
>> +	if (xfs_sb_version_hasextcount_64bit(sbp))
>> +		anextents = di->di_nextents32;
>> +	else
>> +		anextents = di->di_nextents16;
>> +
>>  	printf(_("		size:0x%llx  nblks:0x%llx  exsize:%d  "
>> -	     "nextents:%d  anextents:%d\n"), (unsigned long long)
>> +	     "nextents:%lu  anextents:%u\n"), (unsigned long long)
>>  	       di->di_size, (unsigned long long)di->di_nblocks,
>> -	       di->di_extsize, di->di_nextents32, (int)di->di_nextents16);
>> +	       di->di_extsize, nextents, anextents);
>>  	printf(_("		forkoff:%d  dmevmask:0x%x  dmstate:%d  flags:0x%x  "
>>  	     "gen:%u\n"),
>>  	       (int)di->di_forkoff, di->di_dmevmask, (int)di->di_dmstate,
>> @@ -270,6 +286,7 @@ xlog_recover_print_inode_core(
>>  
>>  STATIC void
>>  xlog_recover_print_inode(
>> +	struct xlog		*log,
>>  	struct xlog_recover_item *item)
>>  {
>>  	struct xfs_inode_log_format	f_buf;
>> @@ -291,7 +308,7 @@ xlog_recover_print_inode(
>>  	ASSERT(item->ri_buf[1].i_len ==
>>  			offsetof(struct xfs_log_dinode, di_next_unlinked) ||
>>  	       item->ri_buf[1].i_len == sizeof(struct xfs_log_dinode));
>> -	xlog_recover_print_inode_core((struct xfs_log_dinode *)
>> +	xlog_recover_print_inode_core(log, (struct xfs_log_dinode *)
>>  				      item->ri_buf[1].i_addr);
>>  
>>  	hasdata = (f->ilf_fields & XFS_ILOG_DFORK) != 0;
>> @@ -386,6 +403,7 @@ xlog_recover_print_icreate(
>>  
>>  void
>>  xlog_recover_print_logitem(
>> +	struct xlog			*log,
>>  	struct xlog_recover_item	*item)
>>  {
>>  	switch (ITEM_TYPE(item)) {
>> @@ -396,7 +414,7 @@ xlog_recover_print_logitem(
>>  		xlog_recover_print_icreate(item);
>>  		break;
>>  	case XFS_LI_INODE:
>> -		xlog_recover_print_inode(item);
>> +		xlog_recover_print_inode(log, item);
>>  		break;
>>  	case XFS_LI_EFD:
>>  		xlog_recover_print_efd(item);
>> @@ -442,6 +460,7 @@ xlog_recover_print_logitem(
>>  
>>  static void
>>  xlog_recover_print_item(
>> +	struct xlog		*log,
>>  	struct xlog_recover_item *item)
>>  {
>>  	int			i;
>> @@ -507,11 +526,12 @@ xlog_recover_print_item(
>>  		       (long)item->ri_buf[i].i_addr, item->ri_buf[i].i_len);
>>  	}
>>  	printf("\n");
>> -	xlog_recover_print_logitem(item);
>> +	xlog_recover_print_logitem(log, item);
>>  }
>>  
>>  void
>>  xlog_recover_print_trans(
>> +	struct xlog		*log,
>>  	struct xlog_recover	*trans,
>>  	struct list_head	*itemq,
>>  	int			print)
>> @@ -524,5 +544,5 @@ xlog_recover_print_trans(
>>  	print_xlog_record_line();
>>  	xlog_recover_print_trans_head(trans);
>>  	list_for_each_entry(item, itemq, ri_list)
>> -		xlog_recover_print_item(item);
>> +		xlog_recover_print_item(log, item);
>>  }
>> diff --git a/logprint/log_print_trans.c b/logprint/log_print_trans.c
>> index 2004b5a0e..c6386fb0c 100644
>> --- a/logprint/log_print_trans.c
>> +++ b/logprint/log_print_trans.c
>> @@ -24,7 +24,7 @@ xlog_recover_do_trans(
>>  	struct xlog_recover	*trans,
>>  	int			pass)
>>  {
>> -	xlog_recover_print_trans(trans, &trans->r_itemq, 3);
>> +	xlog_recover_print_trans(log, trans, &trans->r_itemq, 3);
>>  	return 0;
>>  }
>>  
>> diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c
>> index f41a18f00..a9fca82f1 100644
>> --- a/repair/bmap_repair.c
>> +++ b/repair/bmap_repair.c
>> @@ -536,7 +536,10 @@ rebuild_bmap(
>>  		if (nextents == 0)
>>  			return 0;
>>  		(*dinop)->di_format = XFS_DINODE_FMT_EXTENTS;
>> -		(*dinop)->di_nextents32 = 0;
>> +		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +			(*dinop)->di_nextents64 = cpu_to_be64(0);
>> +		else
>> +			(*dinop)->di_nextents32 = cpu_to_be32(0);
>>  		libxfs_dinode_calc_crc(mp, *dinop);
>>  		*dirty = 1;
>>  		break;
>> @@ -547,7 +550,10 @@ rebuild_bmap(
>>  		if (nextents == 0)
>>  			return 0;
>>  		(*dinop)->di_aformat = XFS_DINODE_FMT_EXTENTS;
>> -		(*dinop)->di_nextents16 = 0;
>> +		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +			(*dinop)->di_nextents32 = cpu_to_be32(0);
>> +		else
>> +			(*dinop)->di_nextents16 = cpu_to_be16(0);
>>  		libxfs_dinode_calc_crc(mp, *dinop);
>>  		*dirty = 1;
>>  		break;
>> diff --git a/repair/dinode.c b/repair/dinode.c
>> index beeb9ed07..5d2dff70a 100644
>> --- a/repair/dinode.c
>> +++ b/repair/dinode.c
>> @@ -78,7 +78,10 @@ _("would have cleared inode %" PRIu64 " attributes\n"), ino_num);
>>  	if (anextents != 0) {
>>  		if (no_modify)
>>  			return(1);
>> -		dino->di_nextents16 = cpu_to_be16(0);
>> +		if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +			dino->di_nextents32 = cpu_to_be32(0);
>> +		else
>> +			dino->di_nextents16 = cpu_to_be16(0);
>>  	}
>>  
>>  	if (dino->di_aformat != XFS_DINODE_FMT_EXTENTS)  {
>> @@ -1870,7 +1873,10 @@ _("too many data fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>>  			do_warn(
>>  _("correcting nextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
>>  				lino, dnextents, nextents);
>> -			dino->di_nextents32 = cpu_to_be32(nextents);
>> +			if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +				dino->di_nextents64 = cpu_to_be64(nextents);
>> +			else
>> +				dino->di_nextents32 = cpu_to_be32(nextents);
>>  			*dirty = 1;
>>  		} else  {
>>  			do_warn(
>> @@ -1894,7 +1900,10 @@ _("too many attr fork extents (%" PRIu64 ") in inode %" PRIu64 "\n"),
>>  			do_warn(
>>  _("correcting anextents for inode %" PRIu64 ", was %lu - counted %" PRIu64 "\n"),
>>  				lino, dnextents, anextents);
>> -			dino->di_nextents16 = cpu_to_be16(anextents);
>> +			if (xfs_sb_version_hasextcount_64bit(&mp->m_sb))
>> +				dino->di_nextents32 = cpu_to_be32(anextents);
>> +			else
>> +				dino->di_nextents16 = cpu_to_be16(anextents);
>>  			*dirty = 1;
>>  		} else  {
>>  			do_warn(
>> -- 
>> 2.30.2
>> 


-- 
chandan

^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2021-07-29  7:26 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-26 11:47 [PATCH V2 00/12] xfsprogs: Extend per-inode extent counters Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 01/12] xfsprogs: Move extent count limits to xfs_format.h Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 02/12] xfsprogs: Rename MAXEXTNUM, MAXAEXTNUM to XFS_IFORK_EXTCNT_MAXS32, XFS_IFORK_EXTCNT_MAXS16 Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 03/12] xfsprogs: Introduce xfs_iext_max() helper Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 04/12] xfsprogs: Use xfs_extnum_t instead of basic data types Chandan Babu R
2021-07-27 23:11   ` Darrick J. Wong
2021-07-26 11:47 ` [PATCH V2 05/12] xfsprogs: Introduce xfs_dfork_nextents() helper Chandan Babu R
2021-07-27 23:14   ` Darrick J. Wong
2021-07-28  7:34     ` Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 06/12] xfsprogs: xfs_dfork_nextents: Return extent count via an out argument Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 07/12] xfsprogs: Rename inode's extent counter fields based on their width Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 08/12] xfsprogs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively Chandan Babu R
2021-07-27 23:15   ` Darrick J. Wong
2021-07-26 11:47 ` [PATCH V2 09/12] xfsprogs: Rename XFS_IOC_BULKSTAT to XFS_IOC_BULKSTAT_V5 Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 10/12] xfsprogs: Enable bulkstat ioctl to support 64-bit extent counters Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 11/12] xfsprogs: Extend per-inode extent counter widths Chandan Babu R
2021-07-28 19:11   ` Darrick J. Wong
2021-07-29  7:26     ` Chandan Babu R
2021-07-26 11:47 ` [PATCH V2 12/12] xfsprogs: Add extcnt64bit mkfs option Chandan Babu R

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