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authorDarrick J. Wong <darrick.wong@oracle.com>2018-01-08 21:51:08 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2018-01-08 21:54:47 +0300
commitb55725974c9d3a5afcdf83daff6fba7d3f91ffca (patch)
tree6d1d7fb37a1a9076713111c95a3491b0634490d5 /fs/xfs/libxfs/xfs_da_btree.c
parent8ba92d43d499f4920af983a7c16e02304dd36932 (diff)
downloadlinux-b55725974c9d3a5afcdf83daff6fba7d3f91ffca.tar.xz
xfs: create a new buf_ops pointer to verify structure metadata
Expose all metadata structure buffer verifier functions via buf_ops. These will be used by the online scrub mechanism to look for problems with buffers that are already sitting around in memory. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_da_btree.c')
-rw-r--r--fs/xfs/libxfs/xfs_da_btree.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index 0ae39617a6c1..cf07585b9d83 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -243,10 +243,35 @@ xfs_da3_node_read_verify(
}
}
+/* Verify the structure of a da3 block. */
+static xfs_failaddr_t
+xfs_da3_node_verify_struct(
+ struct xfs_buf *bp)
+{
+ struct xfs_da_blkinfo *info = bp->b_addr;
+
+ switch (be16_to_cpu(info->magic)) {
+ case XFS_DA3_NODE_MAGIC:
+ case XFS_DA_NODE_MAGIC:
+ return xfs_da3_node_verify(bp);
+ case XFS_ATTR_LEAF_MAGIC:
+ case XFS_ATTR3_LEAF_MAGIC:
+ bp->b_ops = &xfs_attr3_leaf_buf_ops;
+ return bp->b_ops->verify_struct(bp);
+ case XFS_DIR2_LEAFN_MAGIC:
+ case XFS_DIR3_LEAFN_MAGIC:
+ bp->b_ops = &xfs_dir3_leafn_buf_ops;
+ return bp->b_ops->verify_struct(bp);
+ default:
+ return __this_address;
+ }
+}
+
const struct xfs_buf_ops xfs_da3_node_buf_ops = {
.name = "xfs_da3_node",
.verify_read = xfs_da3_node_read_verify,
.verify_write = xfs_da3_node_write_verify,
+ .verify_struct = xfs_da3_node_verify_struct,
};
int