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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2018-2023 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_SCRUB_REPAIR_H__
#define __XFS_SCRUB_REPAIR_H__
#include "xfs_quota_defs.h"
static inline int xrep_notsupported(struct xfs_scrub *sc)
{
return -EOPNOTSUPP;
}
#ifdef CONFIG_XFS_ONLINE_REPAIR
/*
* This is the maximum number of deferred extent freeing item extents (EFIs)
* that we'll attach to a transaction without rolling the transaction to avoid
* overrunning a tr_itruncate reservation.
*/
#define XREP_MAX_ITRUNCATE_EFIS (128)
/* Repair helpers */
int xrep_attempt(struct xfs_scrub *sc);
void xrep_failure(struct xfs_mount *mp);
int xrep_roll_ag_trans(struct xfs_scrub *sc);
int xrep_defer_finish(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);
struct xbitmap;
struct xagb_bitmap;
int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
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: maximum btree height */
unsigned int maxlevels;
/* 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, xfs_dqtype_t type);
int xrep_ino_dqattach(struct xfs_scrub *sc);
/* Metadata repairers */
int xrep_probe(struct xfs_scrub *sc);
int xrep_superblock(struct xfs_scrub *sc);
int xrep_agf(struct xfs_scrub *sc);
int xrep_agfl(struct xfs_scrub *sc);
int xrep_agi(struct xfs_scrub *sc);
#else
static inline int
xrep_attempt(
struct xfs_scrub *sc)
{
return -EOPNOTSUPP;
}
static inline void xrep_failure(struct xfs_mount *mp) {}
static inline xfs_extlen_t
xrep_calc_ag_resblks(
struct xfs_scrub *sc)
{
return 0;
}
#define xrep_probe xrep_notsupported
#define xrep_superblock xrep_notsupported
#define xrep_agf xrep_notsupported
#define xrep_agfl xrep_notsupported
#define xrep_agi xrep_notsupported
#endif /* CONFIG_XFS_ONLINE_REPAIR */
#endif /* __XFS_SCRUB_REPAIR_H__ */
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