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authorChristoph Hellwig <hch@lst.de>2013-04-03 09:11:16 +0400
committerBen Myers <bpm@sgi.com>2013-04-21 23:58:22 +0400
commit3fe58f30b4fc3f8a9084b035a02bc0c67bee8d00 (patch)
tree4b46222d26f3e74d65c6741ddcaed7eaa48948eb /fs/xfs/xfs_quota.h
parent983d09ffe396ed5d5339a1b9ff994dd0b0f2069f (diff)
downloadlinux-3fe58f30b4fc3f8a9084b035a02bc0c67bee8d00.tar.xz
xfs: add CRC checks for quota blocks
Use the reserved space in struct xfs_dqblk to store a UUID and a crc for the quota blocks. [dchinner@redhat.com] Add a LSN field and update for current verifier infrastructure. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_quota.h')
-rw-r--r--fs/xfs/xfs_quota.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index b50ec5b95d5a..c61e31c7d997 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -77,7 +77,14 @@ typedef struct xfs_disk_dquot {
*/
typedef struct xfs_dqblk {
xfs_disk_dquot_t dd_diskdq; /* portion that lives incore as well */
- char dd_fill[32]; /* filling for posterity */
+ char dd_fill[4]; /* filling for posterity */
+
+ /*
+ * These two are only present on filesystems with the CRC bits set.
+ */
+ __be32 dd_crc; /* checksum */
+ __be64 dd_lsn; /* last modification in log */
+ uuid_t dd_uuid; /* location information */
} xfs_dqblk_t;
/*
@@ -380,5 +387,7 @@ extern int xfs_qm_dqcheck(struct xfs_mount *, xfs_disk_dquot_t *,
xfs_dqid_t, uint, uint, char *);
extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
+extern const struct xfs_buf_ops xfs_dquot_buf_ops;
+
#endif /* __KERNEL__ */
#endif /* __XFS_QUOTA_H__ */