From 3fe58f30b4fc3f8a9084b035a02bc0c67bee8d00 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 3 Apr 2013 16:11:16 +1100 Subject: 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 Signed-off-by: Dave Chinner Reviewed-by: Ben Myers Signed-off-by: Ben Myers --- fs/xfs/xfs_quota.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'fs/xfs/xfs_quota.h') 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__ */ -- cgit