From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH 05/19] xfs: add BMAPI_NORMAP flag to perform block remapping without updating rmpabt
Date: Fri, 25 Aug 2017 15:17:24 -0700 [thread overview]
Message-ID: <150369944480.9957.24315921266715864.stgit@magnolia> (raw)
In-Reply-To: <150369940879.9957.6303798184036268321.stgit@magnolia>
From: Darrick J. Wong <darrick.wong@oracle.com>
Add a new flag, XFS_BMAPI_NORMAP, which will perform file block
remapping without updating the rmapbt. This will be used by the repair
code to reconstruct bmbts from the rmapbt, in which case we don't want
the rmapbt update.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/xfs/libxfs/xfs_bmap.c | 57 +++++++++++++++++++++++++++++-----------------
fs/xfs/libxfs/xfs_bmap.h | 10 +++++++-
2 files changed, 45 insertions(+), 22 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index c09c16b..2a58e1a 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -2101,9 +2101,12 @@ xfs_bmap_add_extent_delay_real(
}
/* add reverse mapping */
- error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip, whichfork, new);
- if (error)
- goto done;
+ if (!(bma->flags & XFS_BMAPI_NORMAP)) {
+ error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip,
+ whichfork, new);
+ if (error)
+ goto done;
+ }
/* convert to a btree if necessary */
if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
@@ -2845,7 +2848,8 @@ xfs_bmap_add_extent_hole_real(
struct xfs_bmbt_irec *new,
xfs_fsblock_t *first,
struct xfs_defer_ops *dfops,
- int *logflagsp)
+ int *logflagsp,
+ int flags)
{
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
struct xfs_mount *mp = ip->i_mount;
@@ -3059,9 +3063,11 @@ xfs_bmap_add_extent_hole_real(
}
/* add reverse mapping */
- error = xfs_rmap_map_extent(mp, dfops, ip, whichfork, new);
- if (error)
- goto done;
+ if (!(flags & XFS_BMAPI_NORMAP)) {
+ error = xfs_rmap_map_extent(mp, dfops, ip, whichfork, new);
+ if (error)
+ goto done;
+ }
/* convert to a btree if necessary */
if (xfs_bmap_needs_btree(ip, whichfork)) {
@@ -4293,7 +4299,8 @@ xfs_bmapi_allocate(
else
error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip,
whichfork, &bma->idx, &bma->cur, &bma->got,
- bma->firstblock, bma->dfops, &bma->logflags);
+ bma->firstblock, bma->dfops, &bma->logflags,
+ bma->flags);
bma->logflags |= tmp_logflags;
if (error)
@@ -4670,30 +4677,37 @@ xfs_bmapi_write(
return error;
}
-static int
+int
xfs_bmapi_remap(
struct xfs_trans *tp,
struct xfs_inode *ip,
xfs_fileoff_t bno,
xfs_filblks_t len,
xfs_fsblock_t startblock,
- struct xfs_defer_ops *dfops)
+ struct xfs_defer_ops *dfops,
+ int flags)
{
struct xfs_mount *mp = ip->i_mount;
- struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+ struct xfs_ifork *ifp;
struct xfs_btree_cur *cur = NULL;
xfs_fsblock_t firstblock = NULLFSBLOCK;
struct xfs_bmbt_irec got;
xfs_extnum_t idx;
+ int whichfork = xfs_bmapi_whichfork(flags);
int logflags = 0, error;
+ ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(len > 0);
ASSERT(len <= (xfs_filblks_t)MAXEXTLEN);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+ ASSERT(!(flags & (XFS_BMAPI_DELALLOC | XFS_BMAPI_COWFORK |
+ XFS_BMAPI_ZERO | XFS_BMAPI_CONVERT |
+ XFS_BMAPI_IGSTATE | XFS_BMAPI_METADATA |
+ XFS_BMAPI_ENTIRE)));
if (unlikely(XFS_TEST_ERROR(
- (XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) != XFS_DINODE_FMT_EXTENTS &&
- XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) != XFS_DINODE_FMT_BTREE),
+ (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+ XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
mp, XFS_ERRTAG_BMAPIFORMAT))) {
XFS_ERROR_REPORT("xfs_bmapi_remap", XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
@@ -4703,7 +4717,7 @@ xfs_bmapi_remap(
return -EIO;
if (!(ifp->if_flags & XFS_IFEXTENTS)) {
- error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK);
+ error = xfs_iread_extents(tp, ip, whichfork);
if (error)
return error;
}
@@ -4718,7 +4732,7 @@ xfs_bmapi_remap(
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
if (ifp->if_flags & XFS_IFBROOT) {
- cur = xfs_bmbt_init_cursor(mp, tp, ip, XFS_DATA_FORK);
+ cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);
cur->bc_private.b.firstblock = firstblock;
cur->bc_private.b.dfops = dfops;
cur->bc_private.b.flags = 0;
@@ -4727,18 +4741,19 @@ xfs_bmapi_remap(
got.br_startoff = bno;
got.br_startblock = startblock;
got.br_blockcount = len;
- got.br_state = XFS_EXT_NORM;
+ got.br_state = (flags & XFS_BMAPI_PREALLOC) ? XFS_EXT_UNWRITTEN :
+ XFS_EXT_NORM;
- error = xfs_bmap_add_extent_hole_real(tp, ip, XFS_DATA_FORK, &idx, &cur,
- &got, &firstblock, dfops, &logflags);
+ error = xfs_bmap_add_extent_hole_real(tp, ip, whichfork, &idx, &cur,
+ &got, &firstblock, dfops, &logflags, flags);
if (error)
goto error0;
- if (xfs_bmap_wants_extents(ip, XFS_DATA_FORK)) {
+ if (xfs_bmap_wants_extents(ip, whichfork)) {
int tmp_logflags = 0;
error = xfs_bmap_btree_to_extents(tp, ip, cur,
- &tmp_logflags, XFS_DATA_FORK);
+ &tmp_logflags, whichfork);
logflags |= tmp_logflags;
}
@@ -6535,7 +6550,7 @@ xfs_bmap_finish_one(
switch (type) {
case XFS_BMAP_MAP:
error = xfs_bmapi_remap(tp, ip, startoff, *blockcount,
- startblock, dfops);
+ startblock, dfops, 0);
*blockcount = 0;
break;
case XFS_BMAP_UNMAP:
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index 851982a..d6cb130 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -113,6 +113,9 @@ struct xfs_extent_free_item
/* Only convert delalloc space, don't allocate entirely new extents */
#define XFS_BMAPI_DELALLOC 0x400
+/* Don't update the rmap btree. */
+#define XFS_BMAPI_NORMAP 0x800
+
#define XFS_BMAPI_FLAGS \
{ XFS_BMAPI_ENTIRE, "ENTIRE" }, \
{ XFS_BMAPI_METADATA, "METADATA" }, \
@@ -124,7 +127,8 @@ struct xfs_extent_free_item
{ XFS_BMAPI_ZERO, "ZERO" }, \
{ XFS_BMAPI_REMAP, "REMAP" }, \
{ XFS_BMAPI_COWFORK, "COWFORK" }, \
- { XFS_BMAPI_DELALLOC, "DELALLOC" }
+ { XFS_BMAPI_DELALLOC, "DELALLOC" }, \
+ { XFS_BMAPI_NORMAP, "NORMAP" }
static inline int xfs_bmapi_aflag(int w)
@@ -277,4 +281,8 @@ int xfs_bmap_map_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
int xfs_bmap_unmap_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
struct xfs_inode *ip, struct xfs_bmbt_irec *imap);
+int xfs_bmapi_remap(struct xfs_trans *tp, struct xfs_inode *ip,
+ xfs_fileoff_t bno, xfs_filblks_t len, xfs_fsblock_t startblock,
+ struct xfs_defer_ops *dfops, int flags);
+
#endif /* __XFS_BMAP_H__ */
next prev parent reply other threads:[~2017-08-25 22:17 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-25 22:16 [PATCH v9 00/19] xfs: online fs repair support Darrick J. Wong
2017-08-25 22:16 ` [PATCH 01/19] xfs: add helpers to calculate btree size Darrick J. Wong
2017-08-25 22:17 ` [PATCH 02/19] xfs: expose various functions to repair code Darrick J. Wong
2017-08-25 22:17 ` [PATCH 03/19] xfs: add repair helpers for the reverse mapping btree Darrick J. Wong
2017-08-25 22:17 ` [PATCH 04/19] xfs: add repair helpers for the reference count btree Darrick J. Wong
2017-08-25 22:17 ` Darrick J. Wong [this message]
2017-08-25 22:17 ` [PATCH 06/19] xfs: halt auto-reclamation activities while rebuilding rmap Darrick J. Wong
2017-08-25 22:17 ` [PATCH 07/19] xfs: create tracepoints for online repair Darrick J. Wong
2017-08-25 22:17 ` [PATCH 08/19] xfs: implement the metadata repair ioctl flag Darrick J. Wong
2017-08-25 22:17 ` [PATCH 09/19] xfs: add helper routines for the repair code Darrick J. Wong
2017-08-25 22:17 ` [PATCH 10/19] xfs: repair superblocks Darrick J. Wong
2017-08-25 22:18 ` [PATCH 11/19] xfs: repair the AGF and AGFL Darrick J. Wong
2017-08-25 22:18 ` [PATCH 12/19] xfs: rebuild the AGI Darrick J. Wong
2017-08-25 22:18 ` [PATCH 13/19] xfs: repair free space btrees Darrick J. Wong
2017-08-25 22:18 ` [PATCH 14/19] xfs: repair inode btrees Darrick J. Wong
2017-08-25 22:18 ` [PATCH 15/19] xfs: rebuild the rmapbt Darrick J. Wong
2017-08-25 22:18 ` [PATCH 16/19] xfs: repair refcount btrees Darrick J. Wong
2017-08-25 22:18 ` [PATCH 17/19] xfs: online repair of inodes Darrick J. Wong
2017-08-25 22:18 ` [PATCH 18/19] xfs: repair inode block maps Darrick J. Wong
2017-08-25 22:18 ` [PATCH 19/19] xfs: repair damaged symlinks Darrick J. Wong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=150369944480.9957.24315921266715864.stgit@magnolia \
--to=darrick.wong@oracle.com \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).