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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2017-2023 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_SCRUB_BTREE_H__
#define __XFS_SCRUB_BTREE_H__
/* btree scrub */
/* Check for btree operation errors. */
bool xchk_btree_process_error(struct xfs_scrub *sc,
struct xfs_btree_cur *cur, int level, int *error);
/* Check for btree xref operation errors. */
bool xchk_btree_xref_process_error(struct xfs_scrub *sc,
struct xfs_btree_cur *cur, int level, int *error);
/* Check for btree corruption. */
void xchk_btree_set_corrupt(struct xfs_scrub *sc,
struct xfs_btree_cur *cur, int level);
void xchk_btree_set_preen(struct xfs_scrub *sc, struct xfs_btree_cur *cur,
int level);
/* Check for btree xref discrepancies. */
void xchk_btree_xref_set_corrupt(struct xfs_scrub *sc,
struct xfs_btree_cur *cur, int level);
struct xchk_btree;
typedef int (*xchk_btree_rec_fn)(
struct xchk_btree *bs,
const union xfs_btree_rec *rec);
struct xchk_btree_key {
union xfs_btree_key key;
bool valid;
};
struct xchk_btree {
/* caller-provided scrub state */
struct xfs_scrub *sc;
struct xfs_btree_cur *cur;
xchk_btree_rec_fn scrub_rec;
const struct xfs_owner_info *oinfo;
void *private;
/* internal scrub state */
bool lastrec_valid;
union xfs_btree_rec lastrec;
struct list_head to_check;
/* this element must come last! */
struct xchk_btree_key lastkey[];
};
/*
* Calculate the size of a xchk_btree structure. There are nlevels-1 slots for
* keys because we track leaf records separately in lastrec.
*/
static inline size_t
xchk_btree_sizeof(unsigned int nlevels)
{
return struct_size_t(struct xchk_btree, lastkey, nlevels - 1);
}
int xchk_btree(struct xfs_scrub *sc, struct xfs_btree_cur *cur,
xchk_btree_rec_fn scrub_fn, const struct xfs_owner_info *oinfo,
void *private);
#endif /* __XFS_SCRUB_BTREE_H__ */
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