diff options
| author |   Brian Foster <bfoster@redhat.com> | 2019-02-07 10:45:48 -0800 |
|---|---|---|
| committer |   Darrick J. Wong <darrick.wong@oracle.com> | 2019-02-11 16:07:01 -0800 |
| commit | 39708c20ab51337c3eb282a824eb0aaff7ebe2e1 (patch) | |
| tree | ad3e741a8fbafdfa13531f9efdf91557daada42d /fs/xfs/libxfs/xfs_dir2_block.c | |
| parent | xfs: use verifier magic field in dir2 leaf verifiers (diff) | |
| download | linux-dev-39708c20ab51337c3eb282a824eb0aaff7ebe2e1.tar.xz linux-dev-39708c20ab51337c3eb282a824eb0aaff7ebe2e1.zip | |
xfs: miscellaneous verifier magic value fixups
Most buffer verifiers have hardcoded magic value checks
conditionalized on the version of the filesystem. The magic value
field of the verifier structure facilitates abstraction of some of
this code. Populate the ->magic field of various verifiers to take
advantage of this abstraction. No functional changes.
Signed-off-by: Brian Foster <bfoster@redhat.com>
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/xfs_dir2_block.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_dir2_block.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index 30ed5919da72..b7d6d78f4ce2 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -53,18 +53,16 @@ xfs_dir3_block_verify( struct xfs_mount *mp = bp->b_target->bt_mount; struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr; + if (!xfs_verify_magic(bp, hdr3->magic)) + return __this_address; + if (xfs_sb_version_hascrc(&mp->m_sb)) { - if (hdr3->magic != cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) - return __this_address; if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid)) return __this_address; if (be64_to_cpu(hdr3->blkno) != bp->b_bn) return __this_address; if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->lsn))) return __this_address; - } else { - if (hdr3->magic != cpu_to_be32(XFS_DIR2_BLOCK_MAGIC)) - return __this_address; } return __xfs_dir3_data_check(NULL, bp); } @@ -112,6 +110,8 @@ xfs_dir3_block_write_verify( const struct xfs_buf_ops xfs_dir3_block_buf_ops = { .name = "xfs_dir3_block", + .magic = { cpu_to_be32(XFS_DIR2_BLOCK_MAGIC), + cpu_to_be32(XFS_DIR3_BLOCK_MAGIC) }, .verify_read = xfs_dir3_block_read_verify, .verify_write = xfs_dir3_block_write_verify, .verify_struct = xfs_dir3_block_verify, |