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_sb.c | |
| parent | 09f420197d7ced360b4809606efd7a65f842c2c0 (diff) | |
| download | lwn-39708c20ab51337c3eb282a824eb0aaff7ebe2e1.tar.gz lwn-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_sb.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index a2f52a958091..4e5029c37966 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -229,7 +229,7 @@ xfs_validate_sb_common( uint32_t agcount = 0; uint32_t rem; - if (dsb->sb_magicnum != cpu_to_be32(XFS_SB_MAGIC)) { + if (!xfs_verify_magic(bp, dsb->sb_magicnum)) { xfs_warn(mp, "bad magic number"); return -EWRONGFS; } @@ -782,12 +782,14 @@ out_error: const struct xfs_buf_ops xfs_sb_buf_ops = { .name = "xfs_sb", + .magic = { cpu_to_be32(XFS_SB_MAGIC), cpu_to_be32(XFS_SB_MAGIC) }, .verify_read = xfs_sb_read_verify, .verify_write = xfs_sb_write_verify, }; const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { .name = "xfs_sb_quiet", + .magic = { cpu_to_be32(XFS_SB_MAGIC), cpu_to_be32(XFS_SB_MAGIC) }, .verify_read = xfs_sb_quiet_read_verify, .verify_write = xfs_sb_write_verify, }; |