All of lore.kernel.org
 help / color / mirror / Atom feed
From: Chandan Babu R <chandanrlinux@gmail.com>
To: linux-xfs@vger.kernel.org
Cc: Chandan Babu R <chandanrlinux@gmail.com>,
	david@fromorbit.com, darrick.wong@oracle.com, bfoster@redhat.com
Subject: [PATCH 3/3] xfs: Extend data/attr fork extent counter width
Date: Mon, 31 Aug 2020 18:30:10 +0530	[thread overview]
Message-ID: <20200831130010.454-4-chandanrlinux@gmail.com> (raw)
In-Reply-To: <20200831130010.454-1-chandanrlinux@gmail.com>

The commit xfs: fix inode fork extent count overflow
(3f8a4f1d876d3e3e49e50b0396eaffcc4ba71b08) mentions that 10 billion
data fork extents should be possible to create. However the
corresponding on-disk field has a signed 32-bit type. Hence this
commit extends the per-inode data extent counter to 47 bits. The
length of 47-bits was chosen because,
Maximum file size = 2^63.
Maximum extent count when using 64k block size = 2^63 / 2^16 = 2^47.

Also, XFS has a per-inode xattr extent counter which is 16 bits
wide. A workload which
1. Creates 1 million 255-byte sized xattrs,
2. Deletes 50% of these xattrs in an alternating manner,
3. Tries to insert 400,000 new 255-byte sized xattrs
   causes the xattr extent counter to overflow.

Dave tells me that there are instances where a single file has more than
100 million hardlinks. With parent pointers being stored in xattrs, we
will overflow the signed 16-bits wide xattr extent counter when large
number of hardlinks are created. Hence this commit extends the on-disk
field to 32-bits.

The following changes are made to accomplish this,

1. A new incompat superblock flag to prevent older kernels from mounting
   the filesystem. This flag has to be set during mkfs time.
2. Carve out a new 32-bit field from xfs_dinode->di_pad2[]. This field
   holds the most significant 15 bits of the data extent counter.
3. Carve out a new 16-bit field from xfs_dinode->di_pad2[]. This field
   holds the most significant 16 bits of the attr extent counter.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 fs/xfs/libxfs/xfs_bmap.c        |  8 ++++---
 fs/xfs/libxfs/xfs_format.h      | 20 ++++++++++++----
 fs/xfs/libxfs/xfs_inode_buf.c   | 42 ++++++++++++++++++++++++++-------
 fs/xfs/libxfs/xfs_inode_buf.h   |  4 ++--
 fs/xfs/libxfs/xfs_inode_fork.h  | 17 +++++++++----
 fs/xfs/libxfs/xfs_log_format.h  |  8 ++++---
 fs/xfs/libxfs/xfs_types.h       | 10 ++++----
 fs/xfs/scrub/inode.c            |  2 +-
 fs/xfs/xfs_inode.c              |  2 +-
 fs/xfs/xfs_inode_item.c         | 12 ++++++++--
 fs/xfs/xfs_inode_item_recover.c | 20 ++++++++++++----
 11 files changed, 105 insertions(+), 40 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 16b983b8977d..8788f47ba59e 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -52,9 +52,9 @@ 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 */
@@ -64,7 +64,9 @@ xfs_bmap_compute_maxlevels(
 	 * 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.
+	 * number for the attr fork. With mkfs.xfs' wide-extcount option
+	 * enabled, the data fork extent count is unsigned 47-bits wide, while
+	 * the corresponding attr fork extent count is unsigned 32-bits wide.
 	 *
 	 * Note that we can no longer assume that if we are in ATTR1 that
 	 * the fork offset of all the inodes will be
@@ -464,7 +466,7 @@ xfs_bmap_check_leaf_extents(
 	if (bp_release)
 		xfs_trans_brelse(NULL, bp);
 error_norelse:
-	xfs_warn(mp, "%s: BAD after btree leaves for %d extents",
+	xfs_warn(mp, "%s: BAD after btree leaves for %llu extents",
 		__func__, i);
 	xfs_err(mp, "%s: CORRUPTED BTREE OR SOMETHING", __func__);
 	xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 5f41e177dbda..2684cafd0356 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -465,10 +465,12 @@ xfs_sb_has_ro_compat_feature(
 #define XFS_SB_FEAT_INCOMPAT_FTYPE	(1 << 0)	/* filetype in dirent */
 #define XFS_SB_FEAT_INCOMPAT_SPINODES	(1 << 1)	/* sparse inode chunks */
 #define XFS_SB_FEAT_INCOMPAT_META_UUID	(1 << 2)	/* metadata UUID */
-#define XFS_SB_FEAT_INCOMPAT_ALL \
+#define XFS_SB_FEAT_INCOMPAT_WIDEEXTCNT	(1 << 3)	/* Wider data/attr 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_META_UUID| \
+		 XFS_SB_FEAT_INCOMPAT_WIDEEXTCNT)
 
 #define XFS_SB_FEAT_INCOMPAT_UNKNOWN	~XFS_SB_FEAT_INCOMPAT_ALL
 static inline bool
@@ -551,6 +553,12 @@ 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_haswideextcnt(struct xfs_sb *sbp)
+{
+	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
+		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_WIDEEXTCNT);
+}
+
 static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
@@ -873,8 +881,8 @@ 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_nextents_lo;	/* lower part of data fork extent count */
+	__be16		di_anextents_lo;/* lower part of attr fork extent count */
 	__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 */
@@ -891,7 +899,9 @@ 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 */
+	__be32		di_nextents_hi; /* higher part of data fork extent count */
+	__be16		di_anextents_hi;/* higher part of attr fork extent count */
+	__u8		di_pad2[6];	/* more padding for future expansion */
 
 	/* fields only written to during inode creation */
 	xfs_timestamp_t	di_crtime;	/* time created */
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index cce2aa99aad8..8212bd4b12db 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -258,6 +258,7 @@ xfs_inode_to_disk(
 	struct xfs_dinode	*to,
 	xfs_lsn_t		lsn)
 {
+	struct xfs_sb		*sbp = &ip->i_mount->m_sb;
 	struct xfs_icdinode	*from = &ip->i_d;
 	struct inode		*inode = VFS_I(ip);
 
@@ -284,8 +285,8 @@ xfs_inode_to_disk(
 	to->di_size = cpu_to_be64(from->di_size);
 	to->di_nblocks = cpu_to_be64(from->di_nblocks);
 	to->di_extsize = cpu_to_be32(from->di_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_nextents_lo = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
+	to->di_anextents_lo = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
 	to->di_forkoff = from->di_forkoff;
 	to->di_aformat = xfs_ifork_format(ip->i_afp);
 	to->di_dmevmask = cpu_to_be32(from->di_dmevmask);
@@ -299,6 +300,15 @@ xfs_inode_to_disk(
 		to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.tv_nsec);
 		to->di_flags2 = cpu_to_be64(from->di_flags2);
 		to->di_cowextsize = cpu_to_be32(from->di_cowextsize);
+		if (xfs_sb_version_haswideextcnt(sbp)) {
+			to->di_nextents_hi
+				= cpu_to_be32(xfs_ifork_nextents(&ip->i_df)
+					>> 32);
+			to->di_anextents_hi
+				= cpu_to_be16(xfs_ifork_nextents(ip->i_afp)
+					>> 16);
+		}
+
 		to->di_ino = cpu_to_be64(ip->i_ino);
 		to->di_lsn = cpu_to_be64(lsn);
 		memset(to->di_pad2, 0, sizeof(to->di_pad2));
@@ -312,9 +322,12 @@ xfs_inode_to_disk(
 
 void
 xfs_log_dinode_to_disk(
+	struct xfs_mount	*mp,
 	struct xfs_log_dinode	*from,
 	struct xfs_dinode	*to)
 {
+	struct xfs_sb		*sbp = &mp->m_sb;
+
 	to->di_magic = cpu_to_be16(from->di_magic);
 	to->di_mode = cpu_to_be16(from->di_mode);
 	to->di_version = from->di_version;
@@ -337,8 +350,8 @@ xfs_log_dinode_to_disk(
 	to->di_size = cpu_to_be64(from->di_size);
 	to->di_nblocks = cpu_to_be64(from->di_nblocks);
 	to->di_extsize = cpu_to_be32(from->di_extsize);
-	to->di_nextents = cpu_to_be32(from->di_nextents);
-	to->di_anextents = cpu_to_be16(from->di_anextents);
+	to->di_nextents_lo = cpu_to_be32(from->di_nextents_lo);
+	to->di_anextents_lo = cpu_to_be16(from->di_anextents_lo);
 	to->di_forkoff = from->di_forkoff;
 	to->di_aformat = from->di_aformat;
 	to->di_dmevmask = cpu_to_be32(from->di_dmevmask);
@@ -352,6 +365,10 @@ xfs_log_dinode_to_disk(
 		to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.t_nsec);
 		to->di_flags2 = cpu_to_be64(from->di_flags2);
 		to->di_cowextsize = cpu_to_be32(from->di_cowextsize);
+		if (xfs_sb_version_haswideextcnt(sbp)) {
+			to->di_nextents_hi = cpu_to_be32(from->di_nextents_hi);
+			to->di_anextents_hi = cpu_to_be16(from->di_anextents_hi);
+		}
 		to->di_ino = cpu_to_be64(from->di_ino);
 		to->di_lsn = cpu_to_be64(from->di_lsn);
 		memcpy(to->di_pad2, from->di_pad2, sizeof(to->di_pad2));
@@ -368,7 +385,7 @@ xfs_dinode_verify_fork(
 	struct xfs_mount	*mp,
 	int			whichfork)
 {
-	uint32_t		di_nextents;
+	xfs_extnum_t		di_nextents;
 	xfs_extnum_t		max_extents;
 
 	di_nextents = xfs_dfork_nextents(&mp->m_sb, dip, whichfork);
@@ -408,10 +425,17 @@ xfs_dfork_nextents(struct xfs_sb *sbp, struct xfs_dinode *dip, int whichfork)
 {
 	xfs_extnum_t nextents;
 
-	if (whichfork == XFS_DATA_FORK)
-		nextents = be32_to_cpu(dip->di_nextents);
-	else
-		nextents = be16_to_cpu(dip->di_anextents);
+	if (whichfork == XFS_DATA_FORK) {
+		nextents = be32_to_cpu(dip->di_nextents_lo);
+		if (xfs_sb_version_haswideextcnt(sbp))
+			nextents |=
+				((xfs_extnum_t)be32_to_cpu(dip->di_nextents_hi) << 32);
+	} else {
+		nextents = be16_to_cpu(dip->di_anextents_lo);
+		if (xfs_sb_version_haswideextcnt(sbp))
+			nextents |=
+				((xfs_aextnum_t)be16_to_cpu(dip->di_anextents_hi) << 16);
+	}
 
 	return nextents;
 }
diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h
index a97caf675aaf..288ac17626fd 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.h
+++ b/fs/xfs/libxfs/xfs_inode_buf.h
@@ -49,8 +49,8 @@ void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
 void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
 			  xfs_lsn_t lsn);
 int	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
-void	xfs_log_dinode_to_disk(struct xfs_log_dinode *from,
-			       struct xfs_dinode *to);
+void	xfs_log_dinode_to_disk(struct xfs_mount *mp,
+		struct xfs_log_dinode *from, struct xfs_dinode *to);
 
 xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
 			   struct xfs_dinode *dip);
diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h
index 75e07078967e..bc9246d1fd78 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.h
+++ b/fs/xfs/libxfs/xfs_inode_fork.h
@@ -21,10 +21,10 @@ struct xfs_ifork {
 		void		*if_root;	/* extent tree root */
 		char		*if_data;	/* inline file data */
 	} if_u1;
+	xfs_extnum_t		if_nextents;	/* # of extents in this fork */
 	short			if_broot_bytes;	/* bytes allocated for root */
 	unsigned char		if_flags;	/* per-fork flags */
 	int8_t			if_format;	/* format of this fork */
-	xfs_extnum_t		if_nextents;	/* # of extents in this fork */
 };
 
 /*
@@ -157,10 +157,17 @@ static inline xfs_extnum_t xfs_iext_max(struct xfs_sb *sbp, int whichfork)
 {
 	ASSERT(whichfork == XFS_DATA_FORK || whichfork == XFS_ATTR_FORK);
 
-	if (whichfork == XFS_DATA_FORK)
-		return MAXEXTNUM;
-	else
-		return MAXAEXTNUM;
+	if (whichfork == XFS_DATA_FORK) {
+		if (xfs_sb_version_haswideextcnt(sbp))
+			return MAXEXTNUM_HI;
+		else
+			return MAXEXTNUM;
+	} else {
+		if (xfs_sb_version_haswideextcnt(sbp))
+			return MAXAEXTNUM_HI;
+		else
+			return MAXAEXTNUM;
+	}
 }
 
 struct xfs_ifork *xfs_iext_state_to_fork(struct xfs_inode *ip, int state);
diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h
index e3400c9c71cd..938883c0218d 100644
--- a/fs/xfs/libxfs/xfs_log_format.h
+++ b/fs/xfs/libxfs/xfs_log_format.h
@@ -396,8 +396,8 @@ 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_nextents_lo;	/* lower part of data fork extent count */
+	uint16_t	di_anextents_lo;/* lower part of attr fork extent count */
 	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 */
@@ -414,7 +414,9 @@ 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 */
+	uint32_t	di_nextents_hi; /* higher part of data fork extent count */
+	uint16_t	di_anextents_hi;/* higher part of attr fork extent count */
+	uint8_t		di_pad2[6];	/* more padding for future expansion */
 
 	/* fields only written to during inode creation */
 	xfs_ictimestamp_t di_crtime;	/* time created */
diff --git a/fs/xfs/libxfs/xfs_types.h b/fs/xfs/libxfs/xfs_types.h
index 397d94775440..c302a89d5c63 100644
--- a/fs/xfs/libxfs/xfs_types.h
+++ b/fs/xfs/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 */
 
@@ -59,8 +59,10 @@ typedef void *		xfs_failaddr_t;
  * 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 */
+#define	MAXEXTNUM	((int32_t)0x7fffffff)		/* signed int */
+#define	MAXAEXTNUM	((int16_t)0x7fff)		/* signed short */
+#define MAXEXTNUM_HI	((xfs_extnum_t)0x7fffffffffff)	/* unsigned 47 bits */
+#define MAXAEXTNUM_HI	((xfs_aextnum_t)0xffffffff)	/* unsigned 32 bits */
 
 /*
  * Minimum and maximum blocksize and sectorsize.
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index e428ad0eef03..e6a58e59720e 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -206,7 +206,7 @@ xchk_dinode(
 	size_t			fork_recs;
 	unsigned long long	isize;
 	uint64_t		flags2;
-	uint32_t		nextents;
+	xfs_extnum_t		nextents;
 	uint16_t		flags;
 	uint16_t		mode;
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 8d195b6ef326..d11d22f7755b 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3517,7 +3517,7 @@ xfs_iflush(
 				ip->i_d.di_nblocks, mp, XFS_ERRTAG_IFLUSH_5)) {
 		xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
 			"%s: detected corrupt incore inode %Lu, "
-			"total extents = %d, nblocks = %Ld, ptr "PTR_FMT,
+			"total extents = %llu, nblocks = %Ld, ptr "PTR_FMT,
 			__func__, ip->i_ino,
 			ip->i_df.if_nextents + xfs_ifork_nextents(ip->i_afp),
 			ip->i_d.di_nblocks, ip);
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 895f61b2b4f0..a65fd62237c6 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -301,6 +301,7 @@ xfs_inode_to_log_dinode(
 	struct xfs_log_dinode	*to,
 	xfs_lsn_t		lsn)
 {
+	struct xfs_sb		*sbp = &ip->i_mount->m_sb;
 	struct xfs_icdinode	*from = &ip->i_d;
 	struct inode		*inode = VFS_I(ip);
 
@@ -326,8 +327,8 @@ xfs_inode_to_log_dinode(
 	to->di_size = from->di_size;
 	to->di_nblocks = from->di_nblocks;
 	to->di_extsize = from->di_extsize;
-	to->di_nextents = xfs_ifork_nextents(&ip->i_df);
-	to->di_anextents = xfs_ifork_nextents(ip->i_afp);
+	to->di_nextents_lo = xfs_ifork_nextents(&ip->i_df);
+	to->di_anextents_lo = xfs_ifork_nextents(ip->i_afp);
 	to->di_forkoff = from->di_forkoff;
 	to->di_aformat = xfs_ifork_format(ip->i_afp);
 	to->di_dmevmask = from->di_dmevmask;
@@ -344,6 +345,13 @@ xfs_inode_to_log_dinode(
 		to->di_crtime.t_nsec = from->di_crtime.tv_nsec;
 		to->di_flags2 = from->di_flags2;
 		to->di_cowextsize = from->di_cowextsize;
+		if (xfs_sb_version_haswideextcnt(sbp)) {
+			to->di_nextents_hi
+				= xfs_ifork_nextents(&ip->i_df) >> 32;
+			to->di_anextents_hi
+				= xfs_ifork_nextents(ip->i_afp) >> 16;
+		}
+
 		to->di_ino = ip->i_ino;
 		to->di_lsn = lsn;
 		memset(to->di_pad2, 0, sizeof(to->di_pad2));
diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c
index 5e0d291835b3..d2bf9e5b0e24 100644
--- a/fs/xfs/xfs_inode_item_recover.c
+++ b/fs/xfs/xfs_inode_item_recover.c
@@ -126,6 +126,8 @@ xlog_recover_inode_commit_pass2(
 	struct xfs_mount		*mp = log->l_mp;
 	struct xfs_buf			*bp;
 	struct xfs_dinode		*dip;
+	xfs_extnum_t                    nextents;
+	xfs_aextnum_t                   anextents;
 	int				len;
 	char				*src;
 	char				*dest;
@@ -256,16 +258,24 @@ xlog_recover_inode_commit_pass2(
 			goto out_release;
 		}
 	}
-	if (unlikely(ldip->di_nextents + ldip->di_anextents > ldip->di_nblocks)){
+
+	nextents = ldip->di_nextents_lo;
+	if (xfs_sb_version_haswideextcnt(&mp->m_sb))
+		nextents |= ((xfs_extnum_t)(ldip->di_nextents_hi) << 32);
+
+	anextents = ldip->di_anextents_lo;
+	if (xfs_sb_version_haswideextcnt(&mp->m_sb))
+		anextents |= ((xfs_aextnum_t)(ldip->di_anextents_hi) << 16);
+
+	if (unlikely(nextents + anextents > ldip->di_nblocks)) {
 		XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(5)",
 				     XFS_ERRLEVEL_LOW, mp, ldip,
 				     sizeof(*ldip));
 		xfs_alert(mp,
 	"%s: Bad inode log record, rec ptr "PTR_FMT", dino ptr "PTR_FMT", "
-	"dino bp "PTR_FMT", ino %Ld, total extents = %d, nblocks = %Ld",
+	"dino bp "PTR_FMT", ino %Ld, total extents = %llu, nblocks = %Ld",
 			__func__, item, dip, bp, in_f->ilf_ino,
-			ldip->di_nextents + ldip->di_anextents,
-			ldip->di_nblocks);
+			nextents + anextents, ldip->di_nblocks);
 		error = -EFSCORRUPTED;
 		goto out_release;
 	}
@@ -293,7 +303,7 @@ xlog_recover_inode_commit_pass2(
 	}
 
 	/* recover the log dinode inode into the on disk inode */
-	xfs_log_dinode_to_disk(ldip, dip);
+	xfs_log_dinode_to_disk(mp, ldip, dip);
 
 	fields = in_f->ilf_fields;
 	if (fields & XFS_ILOG_DEV)
-- 
2.28.0


  parent reply	other threads:[~2020-08-31 13:01 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-31 13:00 [PATCH 0/3] xfs: Extend per-inode extent counters Chandan Babu R
2020-08-31 13:00 ` [PATCH 1/3] xfs: Introduce xfs_iext_max() helper Chandan Babu R
2020-08-31 20:43   ` Darrick J. Wong
2020-09-01 14:18     ` Chandan Babu R
2020-08-31 13:00 ` [PATCH 2/3] xfs: Introduce xfs_dfork_nextents() helper Chandan Babu R
2020-08-31 20:48   ` Darrick J. Wong
2020-09-01 14:18     ` Chandan Babu R
2020-08-31 13:00 ` Chandan Babu R [this message]
2020-08-31 21:13   ` [PATCH 3/3] xfs: Extend data/attr fork extent counter width Darrick J. Wong
2020-09-01 14:18     ` Chandan Babu R
2020-09-03 22:51   ` Dave Chinner
2020-09-04  8:57     ` Chandan Babu R
2020-09-04 15:51       ` Darrick J. Wong
2020-09-07  4:02         ` Chandan Babu R

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=20200831130010.454-4-chandanrlinux@gmail.com \
    --to=chandanrlinux@gmail.com \
    --cc=bfoster@redhat.com \
    --cc=darrick.wong@oracle.com \
    --cc=david@fromorbit.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.