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/*
* Copyright (C) 2018 Oracle. All Rights Reserved.
*
* Author: Darrick J. Wong <darrick.wong@oracle.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#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__ */
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