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
   9static inline int xrep_notsupported(struct xfs_scrub *sc)
  10{
  11        return -EOPNOTSUPP;
  12}
  13
  14#ifdef CONFIG_XFS_ONLINE_REPAIR
  15
  16/* Repair helpers */
  17
  18int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc);
  19void xrep_failure(struct xfs_mount *mp);
  20int xrep_roll_ag_trans(struct xfs_scrub *sc);
  21bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
  22                enum xfs_ag_resv_type type);
  23xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
  24int xrep_alloc_ag_block(struct xfs_scrub *sc,
  25                const struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
  26                enum xfs_ag_resv_type resv);
  27int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb,
  28                struct xfs_buf **bpp, xfs_btnum_t btnum,
  29                const struct xfs_buf_ops *ops);
  30
  31struct xfs_bitmap;
  32
  33int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
  34int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xfs_bitmap *btlist);
  35int xrep_reap_extents(struct xfs_scrub *sc, struct xfs_bitmap *exlist,
  36                const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
  37
  38struct xrep_find_ag_btree {
  39        /* in: rmap owner of the btree we're looking for */
  40        uint64_t                        rmap_owner;
  41
  42        /* in: buffer ops */
  43        const struct xfs_buf_ops        *buf_ops;
  44
  45        /* out: the highest btree block found and the tree height */
  46        xfs_agblock_t                   root;
  47        unsigned int                    height;
  48};
  49
  50int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
  51                struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
  52void xrep_force_quotacheck(struct xfs_scrub *sc, uint dqtype);
  53int xrep_ino_dqattach(struct xfs_scrub *sc);
  54
  55/* Metadata repairers */
  56
  57int xrep_probe(struct xfs_scrub *sc);
  58int xrep_superblock(struct xfs_scrub *sc);
  59int xrep_agf(struct xfs_scrub *sc);
  60int xrep_agfl(struct xfs_scrub *sc);
  61int xrep_agi(struct xfs_scrub *sc);
  62
  63#else
  64
  65static inline int xrep_attempt(
  66        struct xfs_inode        *ip,
  67        struct xfs_scrub        *sc)
  68{
  69        return -EOPNOTSUPP;
  70}
  71
  72static inline void xrep_failure(struct xfs_mount *mp) {}
  73
  74static inline xfs_extlen_t
  75xrep_calc_ag_resblks(
  76        struct xfs_scrub        *sc)
  77{
  78        ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
  79        return 0;
  80}
  81
  82#define xrep_probe                      xrep_notsupported
  83#define xrep_superblock                 xrep_notsupported
  84#define xrep_agf                        xrep_notsupported
  85#define xrep_agfl                       xrep_notsupported
  86#define xrep_agi                        xrep_notsupported
  87
  88#endif /* CONFIG_XFS_ONLINE_REPAIR */
  89
  90#endif  /* __XFS_SCRUB_REPAIR_H__ */
  91