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// 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 xrep_notsupported(struct xfs_scrub *sc)
{
return -EOPNOTSUPP;
}
#ifdef CONFIG_XFS_ONLINE_REPAIR
/* Repair helpers */
int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc,
bool *fixed);
void xrep_failure(struct xfs_mount *mp);
int xrep_roll_ag_trans(struct xfs_scrub *sc);
bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
enum xfs_ag_resv_type type);
xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
int xrep_alloc_ag_block(struct xfs_scrub *sc,
struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
enum xfs_ag_resv_type resv);
int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb,
struct xfs_buf **bpp, xfs_btnum_t btnum,
const struct xfs_buf_ops *ops);
struct xrep_extent {
struct list_head list;
xfs_fsblock_t fsbno;
xfs_extlen_t len;
};
struct xrep_extent_list {
struct list_head list;
};
static inline void
xrep_init_extent_list(
struct xrep_extent_list *exlist)
{
INIT_LIST_HEAD(&exlist->list);
}
#define for_each_xrep_extent_safe(rbe, n, exlist) \
list_for_each_entry_safe((rbe), (n), &(exlist)->list, list)
int xrep_collect_btree_extent(struct xfs_scrub *sc,
struct xrep_extent_list *btlist, xfs_fsblock_t fsbno,
xfs_extlen_t len);
void xrep_cancel_btree_extents(struct xfs_scrub *sc,
struct xrep_extent_list *btlist);
int xrep_subtract_extents(struct xfs_scrub *sc,
struct xrep_extent_list *exlist,
struct xrep_extent_list *sublist);
int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
int xrep_invalidate_blocks(struct xfs_scrub *sc,
struct xrep_extent_list *btlist);
int xrep_reap_btree_extents(struct xfs_scrub *sc,
struct xrep_extent_list *exlist,
struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
struct xrep_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 xrep_find_ag_btree_roots(struct xfs_scrub *sc,
struct xfs_buf *agf_bp,
struct xrep_find_ag_btree *btree_info,
struct xfs_buf *agfl_bp);
void xrep_force_quotacheck(struct xfs_scrub *sc, uint dqtype);
int xrep_ino_dqattach(struct xfs_scrub *sc);
/* Metadata repairers */
int xrep_probe(struct xfs_scrub *sc);
int xrep_superblock(struct xfs_scrub *sc);
#else
static inline int xrep_attempt(
struct xfs_inode *ip,
struct xfs_scrub *sc,
bool *fixed)
{
return -EOPNOTSUPP;
}
static inline void xrep_failure(struct xfs_mount *mp) {}
static inline xfs_extlen_t
xrep_calc_ag_resblks(
struct xfs_scrub *sc)
{
ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
return 0;
}
#define xrep_probe xrep_notsupported
#define xrep_superblock xrep_notsupported
#endif /* CONFIG_XFS_ONLINE_REPAIR */
#endif /* __XFS_SCRUB_REPAIR_H__ */
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