LXR linux/fs/xfs/scrub/repair.h

   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#include "xfs_quota_defs.h"
  10
  11static inline int xrep_notsupported(struct xfs_scrub *sc)
  12{
  13        return -EOPNOTSUPP;
  14}
  15
  16#ifdef CONFIG_XFS_ONLINE_REPAIR
  17
  18/* Repair helpers */
  19
  20int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc);
  21void xrep_failure(struct xfs_mount *mp);
  22int xrep_roll_ag_trans(struct xfs_scrub *sc);
  23bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
  24                enum xfs_ag_resv_type type);
  25xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
  26int xrep_alloc_ag_block(struct xfs_scrub *sc,
  27                const struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
  28                enum xfs_ag_resv_type resv);
  29int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb,
  30                struct xfs_buf **bpp, xfs_btnum_t btnum,
  31                const struct xfs_buf_ops *ops);
  32
  33struct xbitmap;
  34
  35int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
  36int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xbitmap *btlist);
  37int xrep_reap_extents(struct xfs_scrub *sc, struct xbitmap *exlist,
  38                const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
  39
  40struct xrep_find_ag_btree {
  41        /* in: rmap owner of the btree we're looking for */
  42        uint64_t                        rmap_owner;
  43
  44        /* in: buffer ops */
  45        const struct xfs_buf_ops        *buf_ops;
  46
  47        /* out: the highest btree block found and the tree height */
  48        xfs_agblock_t                   root;
  49        unsigned int                    height;
  50};
  51
  52int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
  53                struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
  54void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
  55int xrep_ino_dqattach(struct xfs_scrub *sc);
  56
  57/* Metadata repairers */
  58
  59int xrep_probe(struct xfs_scrub *sc);
  60int xrep_superblock(struct xfs_scrub *sc);
  61int xrep_agf(struct xfs_scrub *sc);
  62int xrep_agfl(struct xfs_scrub *sc);
  63int xrep_agi(struct xfs_scrub *sc);
  64
  65#else
  66
  67static inline int xrep_attempt(
  68        struct xfs_inode        *ip,
  69        struct xfs_scrub        *sc)
  70{
  71        return -EOPNOTSUPP;
  72}
  73
  74static inline void xrep_failure(struct xfs_mount *mp) {}
  75
  76static inline xfs_extlen_t
  77xrep_calc_ag_resblks(
  78        struct xfs_scrub        *sc)
  79{
  80        return 0;
  81}
  82
  83#define xrep_probe                      xrep_notsupported
  84#define xrep_superblock                 xrep_notsupported
  85#define xrep_agf                        xrep_notsupported
  86#define xrep_agfl                       xrep_notsupported
  87#define xrep_agi                        xrep_notsupported
  88
  89#endif /* CONFIG_XFS_ONLINE_REPAIR */
  90
  91#endif  /* __XFS_SCRUB_REPAIR_H__ */
  92