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>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 82c21084587b..5d16a6e6900f 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -75,6 +75,8 @@ typedef struct xfs_quotainfo {
          &((qi)->qi_gquota_tree))
 
 
+extern int      xfs_qm_calc_dquots_per_chunk(struct xfs_mount *mp,
+                                             unsigned int nbblks);
 extern void     xfs_trans_mod_dquot(xfs_trans_t *, xfs_dquot_t *, uint, long);
 extern int      xfs_trans_reserve_quota_bydquots(xfs_trans_t *, xfs_mount_t *,
                         xfs_dquot_t *, xfs_dquot_t *, long, long, uint);