[mirror_ubuntu-jammy-kernel.git] / fs / xfs / scrub / repair.h

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2018 Oracle.  All Rights Reserved.
 * Author: Darrick J. Wong <darrick.wong@oracle.com>
 */
#ifndef __XFS_SCRUB_REPAIR_H__
#define __XFS_SCRUB_REPAIR_H__

static inline int xfs_repair_notsupported(struct xfs_scrub_context *sc)
{
	return -EOPNOTSUPP;
}

#ifdef CONFIG_XFS_ONLINE_REPAIR

/* Repair helpers */

int xfs_repair_attempt(struct xfs_inode *ip, struct xfs_scrub_context *sc,
		bool *fixed);
void xfs_repair_failure(struct xfs_mount *mp);
int xfs_repair_roll_ag_trans(struct xfs_scrub_context *sc);
bool xfs_repair_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
		enum xfs_ag_resv_type type);
xfs_extlen_t xfs_repair_calc_ag_resblks(struct xfs_scrub_context *sc);
int xfs_repair_alloc_ag_block(struct xfs_scrub_context *sc,
		struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
		enum xfs_ag_resv_type resv);
int xfs_repair_init_btblock(struct xfs_scrub_context *sc, xfs_fsblock_t fsb,
		struct xfs_buf **bpp, xfs_btnum_t btnum,
		const struct xfs_buf_ops *ops);

struct xfs_repair_extent {
	struct list_head		list;
	xfs_fsblock_t			fsbno;
	xfs_extlen_t			len;
};

struct xfs_repair_extent_list {
	struct list_head		list;
};

static inline void
xfs_repair_init_extent_list(
	struct xfs_repair_extent_list	*exlist)
{
	INIT_LIST_HEAD(&exlist->list);
}

#define for_each_xfs_repair_extent_safe(rbe, n, exlist) \
	list_for_each_entry_safe((rbe), (n), &(exlist)->list, list)
int xfs_repair_collect_btree_extent(struct xfs_scrub_context *sc,
		struct xfs_repair_extent_list *btlist, xfs_fsblock_t fsbno,
		xfs_extlen_t len);
void xfs_repair_cancel_btree_extents(struct xfs_scrub_context *sc,
		struct xfs_repair_extent_list *btlist);
int xfs_repair_subtract_extents(struct xfs_scrub_context *sc,
		struct xfs_repair_extent_list *exlist,
		struct xfs_repair_extent_list *sublist);
int xfs_repair_fix_freelist(struct xfs_scrub_context *sc, bool can_shrink);
int xfs_repair_invalidate_blocks(struct xfs_scrub_context *sc,
		struct xfs_repair_extent_list *btlist);
int xfs_repair_reap_btree_extents(struct xfs_scrub_context *sc,
		struct xfs_repair_extent_list *exlist,
		struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);

struct xfs_repair_find_ag_btree {
	/* in: rmap owner of the btree we're looking for */
	uint64_t			rmap_owner;

	/* in: buffer ops */
	const struct xfs_buf_ops	*buf_ops;

	/* in: magic number of the btree */
	uint32_t			magic;

	/* out: the highest btree block found and the tree height */
	xfs_agblock_t			root;
	unsigned int			height;
};

int xfs_repair_find_ag_btree_roots(struct xfs_scrub_context *sc,
		struct xfs_buf *agf_bp,
		struct xfs_repair_find_ag_btree *btree_info,
		struct xfs_buf *agfl_bp);
void xfs_repair_force_quotacheck(struct xfs_scrub_context *sc, uint dqtype);
int xfs_repair_ino_dqattach(struct xfs_scrub_context *sc);

/* Metadata repairers */

int xfs_repair_probe(struct xfs_scrub_context *sc);
int xfs_repair_superblock(struct xfs_scrub_context *sc);

#else

static inline int xfs_repair_attempt(
	struct xfs_inode		*ip,
	struct xfs_scrub_context	*sc,
	bool				*fixed)
{
	return -EOPNOTSUPP;
}

static inline void xfs_repair_failure(struct xfs_mount *mp) {}

static inline xfs_extlen_t
xfs_repair_calc_ag_resblks(
	struct xfs_scrub_context	*sc)
{
	ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
	return 0;
}

#define xfs_repair_probe		xfs_repair_notsupported
#define xfs_repair_superblock		xfs_repair_notsupported

#endif /* CONFIG_XFS_ONLINE_REPAIR */

#endif	/* __XFS_SCRUB_REPAIR_H__ */
Commit	Line	Data
	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Copyright (C) 2018 Oracle. All Rights Reserved.
	4	* Author: Darrick J. Wong <darrick.wong@oracle.com>
	5	*/
	6	#ifndef __XFS_SCRUB_REPAIR_H__
	7	#define __XFS_SCRUB_REPAIR_H__
	8
	9	static inline int xfs_repair_notsupported(struct xfs_scrub_context *sc)
	10	{
	11	return -EOPNOTSUPP;
	12	}
	13
	14	#ifdef CONFIG_XFS_ONLINE_REPAIR
	15
	16	/* Repair helpers */
	17
	18	int xfs_repair_attempt(struct xfs_inode ip, struct xfs_scrub_context sc,
	19	bool *fixed);
	20	void xfs_repair_failure(struct xfs_mount *mp);
	21	int xfs_repair_roll_ag_trans(struct xfs_scrub_context *sc);
	22	bool xfs_repair_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
	23	enum xfs_ag_resv_type type);
	24	xfs_extlen_t xfs_repair_calc_ag_resblks(struct xfs_scrub_context *sc);
	25	int xfs_repair_alloc_ag_block(struct xfs_scrub_context *sc,
	26	struct xfs_owner_info oinfo, xfs_fsblock_t fsbno,
	27	enum xfs_ag_resv_type resv);
	28	int xfs_repair_init_btblock(struct xfs_scrub_context *sc, xfs_fsblock_t fsb,
	29	struct xfs_buf **bpp, xfs_btnum_t btnum,
	30	const struct xfs_buf_ops *ops);
	31
	32	struct xfs_repair_extent {
	33	struct list_head list;
	34	xfs_fsblock_t fsbno;
	35	xfs_extlen_t len;
	36	};
	37
	38	struct xfs_repair_extent_list {
	39	struct list_head list;
	40	};
	41
	42	static inline void
	43	xfs_repair_init_extent_list(
	44	struct xfs_repair_extent_list *exlist)
	45	{
	46	INIT_LIST_HEAD(&exlist->list);
	47	}
	48
	49	#define for_each_xfs_repair_extent_safe(rbe, n, exlist) \
	50	list_for_each_entry_safe((rbe), (n), &(exlist)->list, list)
	51	int xfs_repair_collect_btree_extent(struct xfs_scrub_context *sc,
	52	struct xfs_repair_extent_list *btlist, xfs_fsblock_t fsbno,
	53	xfs_extlen_t len);
	54	void xfs_repair_cancel_btree_extents(struct xfs_scrub_context *sc,
	55	struct xfs_repair_extent_list *btlist);
	56	int xfs_repair_subtract_extents(struct xfs_scrub_context *sc,
	57	struct xfs_repair_extent_list *exlist,
	58	struct xfs_repair_extent_list *sublist);
	59	int xfs_repair_fix_freelist(struct xfs_scrub_context *sc, bool can_shrink);
	60	int xfs_repair_invalidate_blocks(struct xfs_scrub_context *sc,
	61	struct xfs_repair_extent_list *btlist);
	62	int xfs_repair_reap_btree_extents(struct xfs_scrub_context *sc,
	63	struct xfs_repair_extent_list *exlist,
	64	struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
	65
	66	struct xfs_repair_find_ag_btree {
	67	/* in: rmap owner of the btree we're looking for */
	68	uint64_t rmap_owner;
	69
	70	/* in: buffer ops */
	71	const struct xfs_buf_ops *buf_ops;
	72
	73	/* in: magic number of the btree */
	74	uint32_t magic;
	75
	76	/* out: the highest btree block found and the tree height */
	77	xfs_agblock_t root;
	78	unsigned int height;
	79	};
	80
	81	int xfs_repair_find_ag_btree_roots(struct xfs_scrub_context *sc,
	82	struct xfs_buf *agf_bp,
	83	struct xfs_repair_find_ag_btree *btree_info,
	84	struct xfs_buf *agfl_bp);
	85	void xfs_repair_force_quotacheck(struct xfs_scrub_context *sc, uint dqtype);
	86	int xfs_repair_ino_dqattach(struct xfs_scrub_context *sc);
	87
	88	/* Metadata repairers */
	89
	90	int xfs_repair_probe(struct xfs_scrub_context *sc);
	91	int xfs_repair_superblock(struct xfs_scrub_context *sc);
	92
	93	#else
	94
	95	static inline int xfs_repair_attempt(
	96	struct xfs_inode *ip,
	97	struct xfs_scrub_context *sc,
	98	bool *fixed)
	99	{
	100	return -EOPNOTSUPP;
	101	}
	102
	103	static inline void xfs_repair_failure(struct xfs_mount *mp) {}
	104
	105	static inline xfs_extlen_t
	106	xfs_repair_calc_ag_resblks(
	107	struct xfs_scrub_context *sc)
	108	{
	109	ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
	110	return 0;
	111	}
	112
	113	#define xfs_repair_probe xfs_repair_notsupported
	114	#define xfs_repair_superblock xfs_repair_notsupported
	115
	116	#endif /* CONFIG_XFS_ONLINE_REPAIR */
	117
	118	#endif /* __XFS_SCRUB_REPAIR_H__ */