root/fs/xfs/scrub/repair.h

INCLUDED FROM

DEFINITIONS

1. xrep_notsupported
2. xrep_attempt
3. xrep_failure
4. xrep_calc_ag_resblks

   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 static 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 
  18 int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc);
  19 void xrep_failure(struct xfs_mount *mp);
  20 int xrep_roll_ag_trans(struct xfs_scrub *sc);
  21 bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
  22                 enum xfs_ag_resv_type type);
  23 xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
  24 int 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);
  27 int 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 
  31 struct xfs_bitmap;
  32 
  33 int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
  34 int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xfs_bitmap *btlist);
  35 int 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 
  38 struct 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 
  50 int 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);
  52 void xrep_force_quotacheck(struct xfs_scrub *sc, uint dqtype);
  53 int xrep_ino_dqattach(struct xfs_scrub *sc);
  54 
  55 /* Metadata repairers */
  56 
  57 int xrep_probe(struct xfs_scrub *sc);
  58 int xrep_superblock(struct xfs_scrub *sc);
  59 int xrep_agf(struct xfs_scrub *sc);
  60 int xrep_agfl(struct xfs_scrub *sc);
  61 int xrep_agi(struct xfs_scrub *sc);
  62 
  63 #else
  64 
  65 static inline int xrep_attempt(
  66         struct xfs_inode        *ip,
  67         struct xfs_scrub        *sc)
  68 {
  69         return -EOPNOTSUPP;
  70 }
  71 
  72 static inline void xrep_failure(struct xfs_mount *mp) {}
  73 
  74 static inline xfs_extlen_t
  75 xrep_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__ */