xref: /openbmc/linux/fs/xfs/scrub/dabtree.h (revision a17922de)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2017 Oracle.  All Rights Reserved.
4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
5  */
6 #ifndef __XFS_SCRUB_DABTREE_H__
7 #define __XFS_SCRUB_DABTREE_H__
8 
9 /* dir/attr btree */
10 
11 struct xfs_scrub_da_btree {
12 	struct xfs_da_args		dargs;
13 	xfs_dahash_t			hashes[XFS_DA_NODE_MAXDEPTH];
14 	int				maxrecs[XFS_DA_NODE_MAXDEPTH];
15 	struct xfs_da_state		*state;
16 	struct xfs_scrub_context	*sc;
17 	void				*private;
18 
19 	/*
20 	 * Lowest and highest directory block address in which we expect
21 	 * to find dir/attr btree node blocks.  For a directory this
22 	 * (presumably) means between LEAF_OFFSET and FREE_OFFSET; for
23 	 * attributes there is no limit.
24 	 */
25 	xfs_dablk_t			lowest;
26 	xfs_dablk_t			highest;
27 
28 	int				tree_level;
29 };
30 
31 typedef int (*xfs_scrub_da_btree_rec_fn)(struct xfs_scrub_da_btree *ds,
32 		int level, void *rec);
33 
34 /* Check for da btree operation errors. */
35 bool xfs_scrub_da_process_error(struct xfs_scrub_da_btree *ds, int level, int *error);
36 
37 /* Check for da btree corruption. */
38 void xfs_scrub_da_set_corrupt(struct xfs_scrub_da_btree *ds, int level);
39 
40 int xfs_scrub_da_btree_hash(struct xfs_scrub_da_btree *ds, int level,
41 			    __be32 *hashp);
42 int xfs_scrub_da_btree(struct xfs_scrub_context *sc, int whichfork,
43 		       xfs_scrub_da_btree_rec_fn scrub_fn, void *private);
44 
45 #endif /* __XFS_SCRUB_DABTREE_H__ */
46