xfs: factor xfs_da3_blkinfo verification into common helper
With the verifier magic value helper in place, we've left a bit more
duplicate code across the verifiers that involve struct
xfs_da3_blkinfo. This includes the da node, xattr leaf and dir leaf
verifiers, all of which perform similar checks for v4 and v5
filesystems.
Create a common helper to verify an xfs_da3_blkinfo structure,
taking care to only access v5 fields where appropriate, and refactor
the aforementioned verifiers to use the helper. 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>
diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c
index dee0fd3..094028b7 100644
--- a/fs/xfs/libxfs/xfs_dir2_leaf.c
+++ b/fs/xfs/libxfs/xfs_dir2_leaf.c
@@ -146,20 +146,11 @@ xfs_dir3_leaf_verify(
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_dir2_leaf *leaf = bp->b_addr;
+ xfs_failaddr_t fa;
- if (!xfs_verify_magic(bp, leaf->hdr.info.magic))
- return __this_address;
-
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
- struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
-
- if (!uuid_equal(&leaf3->info.uuid, &mp->m_sb.sb_meta_uuid))
- return __this_address;
- if (be64_to_cpu(leaf3->info.blkno) != bp->b_bn)
- return __this_address;
- if (!xfs_log_check_lsn(mp, be64_to_cpu(leaf3->info.lsn)))
- return __this_address;
- }
+ fa = xfs_da3_blkinfo_verify(bp, bp->b_addr);
+ if (fa)
+ return fa;
return xfs_dir3_leaf_check_int(mp, NULL, NULL, leaf);
}
