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xfs: check parent pointer xattrs when scrubbing

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Check parent pointer xattrs as part of scrubbing xattrs.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-04-22 09:48:05 -07:00
parent 77ede5f44b
commit 59a2af9086
1 changed files with 16 additions and 0 deletions
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16
fs/xfs/scrub/attr.c
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@ -17,6 +17,7 @@
#include "xfs_attr.h"
#include "xfs_attr_leaf.h"
#include "xfs_attr_sf.h"
#include "xfs_parent.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/dabtree.h"
@ -208,6 +209,13 @@ xchk_xattr_actor(
return -ECANCELED;
}
/* Check parent pointer record. */
if ((attr_flags & XFS_ATTR_PARENT) &&
!xfs_parent_valuecheck(sc->mp, value, valuelen)) {
xchk_fblock_set_corrupt(sc, XFS_ATTR_FORK, args.blkno);
return -ECANCELED;
}
/*
* Try to allocate enough memory to extract the attr value. If that
* doesn't work, return -EDEADLOCK as a signal to try again with a
@ -219,6 +227,14 @@ xchk_xattr_actor(
if (error)
return error;
/*
* Parent pointers are matched on attr name and value, so we must
* supply the xfs_parent_rec here when confirming that the dabtree
* indexing works correctly.
*/
if (attr_flags & XFS_ATTR_PARENT)
memcpy(ab->value, value, valuelen);
args.value = ab->value;
/*