Line data    Source code

       1             : // SPDX-License-Identifier: GPL-2.0-or-later
       2             : /*
       3             :  * Copyright (C) 2018-2023 Oracle.  All Rights Reserved.
       4             :  * Author: Darrick J. Wong <djwong@kernel.org>
       5             :  */
       6             : #ifndef __XFS_SCRUB_REPAIR_H__
       7             : #define __XFS_SCRUB_REPAIR_H__
       8             : 
       9             : #include "xfs_quota_defs.h"
      10             : 
      11   315133487 : static inline int xrep_notsupported(struct xfs_scrub *sc)
      12             : {
      13   315133487 :         return -EOPNOTSUPP;
      14             : }
      15             : 
      16             : #ifdef CONFIG_XFS_ONLINE_REPAIR
      17             : 
      18             : /* Repair helpers */
      19             : 
      20             : int xrep_attempt(struct xfs_scrub *sc);
      21             : void xrep_failure(struct xfs_mount *mp);
      22             : int xrep_roll_ag_trans(struct xfs_scrub *sc);
      23             : bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
      24             :                 enum xfs_ag_resv_type type);
      25             : xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
      26             : int 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);
      29             : int 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             : 
      33             : struct xbitmap;
      34             : struct xagb_bitmap;
      35             : 
      36             : int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
      37             : int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xbitmap *btlist);
      38             : int xrep_reap_extents(struct xfs_scrub *sc, struct xbitmap *exlist,
      39             :                 const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
      40             : 
      41             : struct xrep_find_ag_btree {
      42             :         /* in: rmap owner of the btree we're looking for */
      43             :         uint64_t                        rmap_owner;
      44             : 
      45             :         /* in: buffer ops */
      46             :         const struct xfs_buf_ops        *buf_ops;
      47             : 
      48             :         /* in: maximum btree height */
      49             :         unsigned int                    maxlevels;
      50             : 
      51             :         /* out: the highest btree block found and the tree height */
      52             :         xfs_agblock_t                   root;
      53             :         unsigned int                    height;
      54             : };
      55             : 
      56             : int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
      57             :                 struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
      58             : void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
      59             : int xrep_ino_dqattach(struct xfs_scrub *sc);
      60             : 
      61             : /* Metadata repairers */
      62             : 
      63             : int xrep_probe(struct xfs_scrub *sc);
      64             : int xrep_superblock(struct xfs_scrub *sc);
      65             : int xrep_agf(struct xfs_scrub *sc);
      66             : int xrep_agfl(struct xfs_scrub *sc);
      67             : int xrep_agi(struct xfs_scrub *sc);
      68             : 
      69             : #else
      70             : 
      71             : static inline int
      72             : xrep_attempt(
      73             :         struct xfs_scrub        *sc)
      74             : {
      75             :         return -EOPNOTSUPP;
      76             : }
      77             : 
      78             : static inline void xrep_failure(struct xfs_mount *mp) {}
      79             : 
      80             : static inline xfs_extlen_t
      81             : xrep_calc_ag_resblks(
      82             :         struct xfs_scrub        *sc)
      83             : {
      84             :         return 0;
      85             : }
      86             : 
      87             : #define xrep_probe                      xrep_notsupported
      88             : #define xrep_superblock                 xrep_notsupported
      89             : #define xrep_agf                        xrep_notsupported
      90             : #define xrep_agfl                       xrep_notsupported
      91             : #define xrep_agi                        xrep_notsupported
      92             : 
      93             : #endif /* CONFIG_XFS_ONLINE_REPAIR */
      94             : 
      95             : #endif  /* __XFS_SCRUB_REPAIR_H__ */