[linux-2.6-block.git] / fs / xfs / scrub / btree.h

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2017 Oracle.  All Rights Reserved.
 * Author: Darrick J. Wong <darrick.wong@oracle.com>
 */
#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);

/* 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,
	union xfs_btree_rec	*rec);

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 */
	union xfs_btree_rec		lastrec;
	bool				firstrec;
	union xfs_btree_key		lastkey[XFS_BTREE_MAXLEVELS];
	bool				firstkey[XFS_BTREE_MAXLEVELS];
	struct list_head		to_check;
};
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__ */
Commit	Line	Data
0b61f8a4	1	// SPDX-License-Identifier: GPL-2.0+
537964bc DW	2	/*
537964bc DW	3	* Copyright (C) 2017 Oracle. All Rights Reserved.
537964bc	4	* Author: Darrick J. Wong <darrick.wong@oracle.com>
537964bc DW	5	*/
	6	#ifndef __XFS_SCRUB_BTREE_H__
	7	#define __XFS_SCRUB_BTREE_H__
	8
	9	/* btree scrub */
	10
	11	/* Check for btree operation errors. */
1d8a748a	12	bool xchk_btree_process_error(struct xfs_scrub *sc,
537964bc DW	13	struct xfs_btree_cur cur, int level, int error);
537964bc DW	14
64b12563	15	/* Check for btree xref operation errors. */
1d8a748a	16	bool xchk_btree_xref_process_error(struct xfs_scrub *sc,
032d91f9	17	struct xfs_btree_cur cur, int level, int error);
64b12563	18
537964bc	19	/* Check for btree corruption. */
1d8a748a	20	void xchk_btree_set_corrupt(struct xfs_scrub *sc,
537964bc DW	21	struct xfs_btree_cur *cur, int level);
537964bc DW	22
64b12563	23	/* Check for btree xref discrepancies. */
1d8a748a	24	void xchk_btree_xref_set_corrupt(struct xfs_scrub *sc,
64b12563 DW	25	struct xfs_btree_cur *cur, int level);
64b12563 DW	26
c517b3aa DW	27	struct xchk_btree;
	28	typedef int (*xchk_btree_rec_fn)(
	29	struct xchk_btree *bs,
537964bc DW	30	union xfs_btree_rec *rec);
537964bc DW	31
c517b3aa	32	struct xchk_btree {
537964bc	33	/* caller-provided scrub state */
66e3237e DW	34	struct xfs_scrub *sc;
	35	struct xfs_btree_cur *cur;
	36	xchk_btree_rec_fn scrub_rec;
	37	const struct xfs_owner_info *oinfo;
	38	void *private;
537964bc DW	39
537964bc DW	40	/* internal scrub state */
66e3237e DW	41	union xfs_btree_rec lastrec;
	42	bool firstrec;
	43	union xfs_btree_key lastkey[XFS_BTREE_MAXLEVELS];
	44	bool firstkey[XFS_BTREE_MAXLEVELS];
	45	struct list_head to_check;
537964bc	46	};
1d8a748a	47	int xchk_btree(struct xfs_scrub sc, struct xfs_btree_cur cur,
66e3237e	48	xchk_btree_rec_fn scrub_fn, const struct xfs_owner_info *oinfo,
032d91f9	49	void *private);
537964bc DW	50
537964bc DW	51	#endif /* __XFS_SCRUB_BTREE_H__ */