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xfs: pass inode number to xfs_scrub_ino_set_{preen,warning} 

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@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2017-11-06 11:46:15 -08:00
parent 35ce852334
commit 0a1e1567b3
4 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/scrub/attr.c
View File

@ -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;
}

6
fs/xfs/scrub/common.c
View File

@ -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);
}

5
fs/xfs/scrub/common.h
View File

@ -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);

8
fs/xfs/scrub/inode.c
View File

@ -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: