diff options
| author | Eric Sandeen <sandeen@sandeen.net> | 2018-05-07 09:20:18 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-09 10:04:01 -0700 |
| commit | 7224fa482a6daa0558792e03a209e08d34690a26 (patch) | |
| tree | 17a3237544ba0f561df642e0a54c8fe16eabab92 /fs/xfs/libxfs | |
| parent | 48fa1db87f730da1aed2d3df0cc8c33c7c133b4b (diff) | |
| download | linux-7224fa482a6daa0558792e03a209e08d34690a26.tar.bz2 | |
xfs: add full xfs_dqblk verifier
Add an xfs_dqblk verifier so that it can check the uuid on V5 filesystems;
it calls the existing xfs_dquot_verify verifier to validate the
xfs_disk_dquot_t contained inside it. This lets us move the uuid
verification out of the crc verifier, which makes little sense.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_dquot_buf.c | 27 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_quota_defs.h | 2 |
2 files changed, 24 insertions, 5 deletions
diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c index 3b92427883fa..83bebb57d0da 100644 --- a/fs/xfs/libxfs/xfs_dquot_buf.c +++ b/fs/xfs/libxfs/xfs_dquot_buf.c @@ -41,7 +41,12 @@ xfs_calc_dquots_per_chunk( /* * Do some primitive error checking on ondisk dquot data structures. + * + * The xfs_dqblk structure /contains/ the xfs_disk_dquot structure; + * we verify them separately because at some points we have only the + * smaller xfs_disk_dquot structure available. */ + xfs_failaddr_t xfs_dquot_verify( struct xfs_mount *mp, @@ -100,6 +105,20 @@ xfs_dquot_verify( return NULL; } +xfs_failaddr_t +xfs_dqblk_verify( + struct xfs_mount *mp, + struct xfs_dqblk *dqb, + xfs_dqid_t id, + uint type) /* used only during quotacheck */ +{ + if (xfs_sb_version_hascrc(&mp->m_sb) && + !uuid_equal(&dqb->dd_uuid, &mp->m_sb.sb_meta_uuid)) + return __this_address; + + return xfs_dquot_verify(mp, &dqb->dd_diskdq, id, type); +} + /* * Do some primitive error checking on ondisk dquot data structures. */ @@ -156,8 +175,6 @@ xfs_dquot_buf_verify_crc( if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF)) return false; - if (!uuid_equal(&d->dd_uuid, &mp->m_sb.sb_meta_uuid)) - return false; } return true; } @@ -167,7 +184,7 @@ xfs_dquot_buf_verify( struct xfs_mount *mp, struct xfs_buf *bp) { - struct xfs_dqblk *d = (struct xfs_dqblk *)bp->b_addr; + struct xfs_dqblk *dqb = bp->b_addr; xfs_failaddr_t fa; xfs_dqid_t id = 0; int ndquots; @@ -193,12 +210,12 @@ xfs_dquot_buf_verify( for (i = 0; i < ndquots; i++) { struct xfs_disk_dquot *ddq; - ddq = &d[i].dd_diskdq; + ddq = &dqb[i].dd_diskdq; if (i == 0) id = be32_to_cpu(ddq->d_id); - fa = xfs_dquot_verify(mp, ddq, id + i, 0); + fa = xfs_dqblk_verify(mp, &dqb[i], id + i, 0); if (fa) return fa; } diff --git a/fs/xfs/libxfs/xfs_quota_defs.h b/fs/xfs/libxfs/xfs_quota_defs.h index a2f8cb334bb3..1aac52d7fef4 100644 --- a/fs/xfs/libxfs/xfs_quota_defs.h +++ b/fs/xfs/libxfs/xfs_quota_defs.h @@ -153,6 +153,8 @@ typedef uint16_t xfs_qwarncnt_t; extern xfs_failaddr_t xfs_dquot_verify(struct xfs_mount *mp, struct xfs_disk_dquot *ddq, xfs_dqid_t id, uint type); +extern xfs_failaddr_t xfs_dqblk_verify(struct xfs_mount *mp, + struct xfs_dqblk *dqb, xfs_dqid_t id, uint type); extern int xfs_calc_dquots_per_chunk(unsigned int nbblks); extern int xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb, xfs_dqid_t id, uint type); |