From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
There are two ways to scrub an inode -- calling xfs_iget and checking
the raw inode core, or by loading the inode cluster buffer and checking
the on-disk contents directly. The second method is only useful if
_iget fails the verifiers; when this is the case, sc->ip is NULL and
calling the tracepoint will cause a system crash.
Therefore, pass the raw inode number directly into the _preen and
_warning functions.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/scrub/attr.c | 2 +-
fs/xfs/scrub/common.c | 6 ++++--
fs/xfs/scrub/common.h | 5 +++--
fs/xfs/scrub/inode.c | 8 ++++----
4 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/fs/xfs/scrub/attr.c b/fs/xfs/scrub/attr.c
index 5cf30de..4ed8047 100644
--- a/fs/xfs/scrub/attr.c
+++ b/fs/xfs/scrub/attr.c
@@ -98,7 +98,7 @@ xfs_scrub_xattr_listent(
if (flags & XFS_ATTR_INCOMPLETE) {
/* Incomplete attr key, just mark the inode for preening. */
- xfs_scrub_ino_set_preen(sx->sc, NULL);
+ xfs_scrub_ino_set_preen(sx->sc, context->dp->i_ino, NULL);
return;
}
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index 318dd97..ac95fe9 100644
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -165,10 +165,11 @@ xfs_scrub_block_set_preen(
void
xfs_scrub_ino_set_preen(
struct xfs_scrub_context *sc,
+ xfs_ino_t ino,
struct xfs_buf *bp)
{
sc->sm->sm_flags |= XFS_SCRUB_OFLAG_PREEN;
- trace_xfs_scrub_ino_preen(sc, sc->ip->i_ino, bp ? bp->b_bn : 0,
+ trace_xfs_scrub_ino_preen(sc, ino, bp ? bp->b_bn : 0,
__return_address);
}
@@ -215,10 +216,11 @@ xfs_scrub_fblock_set_corrupt(
void
xfs_scrub_ino_set_warning(
struct xfs_scrub_context *sc,
+ xfs_ino_t ino,
struct xfs_buf *bp)
{
sc->sm->sm_flags |= XFS_SCRUB_OFLAG_WARNING;
- trace_xfs_scrub_ino_warning(sc, sc->ip->i_ino, bp ? bp->b_bn : 0,
+ trace_xfs_scrub_ino_warning(sc, ino, bp ? bp->b_bn : 0,
__return_address);
}
diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h
index 0409ec2..5c04385 100644
--- a/fs/xfs/scrub/common.h
+++ b/fs/xfs/scrub/common.h
@@ -58,7 +58,8 @@ bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork,
void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc,
struct xfs_buf *bp);
-void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, struct xfs_buf *bp);
+void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino,
+ struct xfs_buf *bp);
void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc,
struct xfs_buf *bp);
@@ -67,7 +68,7 @@ void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino,
void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork,
xfs_fileoff_t offset);
-void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc,
+void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino,
struct xfs_buf *bp);
void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork,
xfs_fileoff_t offset);
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index f275dd2..637b7a8 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -328,7 +328,7 @@ xfs_scrub_dinode(
* We autoconvert v1 inodes into v2 inodes on writeout,
* so just mark this inode for preening.
*/
- xfs_scrub_ino_set_preen(sc, bp);
+ xfs_scrub_ino_set_preen(sc, ino, bp);
break;
case 2:
case 3:
@@ -353,7 +353,7 @@ xfs_scrub_dinode(
*/
if (dip->di_uid == cpu_to_be32(-1U) ||
dip->di_gid == cpu_to_be32(-1U))
- xfs_scrub_ino_set_warning(sc, bp);
+ xfs_scrub_ino_set_warning(sc, ino, bp);
/* di_format */
switch (dip->di_format) {
@@ -408,7 +408,7 @@ xfs_scrub_dinode(
* overly large offsets, flag the inode for admin review.
*/
if (isize >= mp->m_super->s_maxbytes)
- xfs_scrub_ino_set_warning(sc, bp);
+ xfs_scrub_ino_set_warning(sc, ino, bp);
/* di_nblocks */
if (flags2 & XFS_DIFLAG2_REFLINK) {
@@ -601,7 +601,7 @@ xfs_scrub_inode(
XFS_INO_TO_AGBNO(mp, ino), &error))
goto out;
if (!has_shared)
- xfs_scrub_ino_set_preen(sc, bp);
+ xfs_scrub_ino_set_preen(sc, ino, bp);
}
out:
--
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