1/*
 2 * Copyright (C) 2017 Oracle.  All Rights Reserved.
 3 *
 4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version 2
 9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it would be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write the Free Software Foundation,
18 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
19 */
20#ifndef __XFS_SCRUB_DABTREE_H__
21#define __XFS_SCRUB_DABTREE_H__
22
23/* dir/attr btree */
24
25struct xfs_scrub_da_btree {
26	struct xfs_da_args		dargs;
27	xfs_dahash_t			hashes[XFS_DA_NODE_MAXDEPTH];
28	int				maxrecs[XFS_DA_NODE_MAXDEPTH];
29	struct xfs_da_state		*state;
30	struct xfs_scrub_context	*sc;
31	void				*private;
32
33	/*
34	 * Lowest and highest directory block address in which we expect
35	 * to find dir/attr btree node blocks.  For a directory this
36	 * (presumably) means between LEAF_OFFSET and FREE_OFFSET; for
37	 * attributes there is no limit.
38	 */
39	xfs_dablk_t			lowest;
40	xfs_dablk_t			highest;
41
42	int				tree_level;
43};
44
45typedef int (*xfs_scrub_da_btree_rec_fn)(struct xfs_scrub_da_btree *ds,
46		int level, void *rec);
47
48/* Check for da btree operation errors. */
49bool xfs_scrub_da_process_error(struct xfs_scrub_da_btree *ds, int level, int *error);
50
51/* Check for da btree corruption. */
52void xfs_scrub_da_set_corrupt(struct xfs_scrub_da_btree *ds, int level);
53
54int xfs_scrub_da_btree_hash(struct xfs_scrub_da_btree *ds, int level,
55			    __be32 *hashp);
56int xfs_scrub_da_btree(struct xfs_scrub_context *sc, int whichfork,
57		       xfs_scrub_da_btree_rec_fn scrub_fn, void *private);
58
59#endif /* __XFS_SCRUB_DABTREE_H__ */