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             : struct xchk_stats_run;
      12             : 
      13           0 : static inline int xrep_notsupported(struct xfs_scrub *sc)
      14             : {
      15           0 :         return -EOPNOTSUPP;
      16             : }
      17             : 
      18             : #ifdef CONFIG_XFS_ONLINE_REPAIR
      19             : 
      20             : /* Repair helpers */
      21             : 
      22             : int xrep_attempt(struct xfs_scrub *sc, struct xchk_stats_run *run);
      23             : bool xrep_will_attempt(struct xfs_scrub *sc);
      24             : void xrep_failure(struct xfs_mount *mp);
      25             : int xrep_roll_ag_trans(struct xfs_scrub *sc);
      26             : int xrep_roll_trans(struct xfs_scrub *sc);
      27             : int xrep_defer_finish(struct xfs_scrub *sc);
      28             : bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
      29             :                 enum xfs_ag_resv_type type);
      30             : xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
      31             : 
      32             : static inline int
      33             : xrep_trans_commit(
      34             :         struct xfs_scrub        *sc)
      35             : {
      36      602595 :         int                     error = xfs_trans_commit(sc->tp);
      37             : 
      38      602599 :         sc->tp = NULL;
      39      602599 :         return error;
      40             : }
      41             : 
      42             : struct xbitmap;
      43             : struct xagb_bitmap;
      44             : struct xrgb_bitmap;
      45             : struct xfsb_bitmap;
      46             : struct xrtb_bitmap;
      47             : 
      48             : int xrep_fix_freelist(struct xfs_scrub *sc, int alloc_flags);
      49             : 
      50             : struct xrep_find_ag_btree {
      51             :         /* in: rmap owner of the btree we're looking for */
      52             :         uint64_t                        rmap_owner;
      53             : 
      54             :         /* in: buffer ops */
      55             :         const struct xfs_buf_ops        *buf_ops;
      56             : 
      57             :         /* in: maximum btree height */
      58             :         unsigned int                    maxlevels;
      59             : 
      60             :         /* out: the highest btree block found and the tree height */
      61             :         xfs_agblock_t                   root;
      62             :         unsigned int                    height;
      63             : };
      64             : 
      65             : int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
      66             :                 struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
      67             : 
      68             : #ifdef CONFIG_XFS_QUOTA
      69             : void xrep_update_qflags(struct xfs_scrub *sc, unsigned int clear_flags,
      70             :                 unsigned int set_flags);
      71             : void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
      72             : int xrep_ino_dqattach(struct xfs_scrub *sc);
      73             : #else
      74             : # define xrep_force_quotacheck(sc, type)        ((void)0)
      75             : # define xrep_ino_dqattach(sc)                  (0)
      76             : #endif /* CONFIG_XFS_QUOTA */
      77             : 
      78             : int xrep_setup_buftarg(struct xfs_scrub *sc, const char *descr);
      79             : 
      80             : int xrep_ino_ensure_extent_count(struct xfs_scrub *sc, int whichfork,
      81             :                 xfs_extnum_t nextents);
      82             : int xrep_reset_perag_resv(struct xfs_scrub *sc);
      83             : int xrep_bmap(struct xfs_scrub *sc, int whichfork, bool allow_unwritten);
      84             : int xrep_metadata_inode_forks(struct xfs_scrub *sc);
      85             : bool xrep_set_nlink(struct xfs_inode *ip, uint64_t nlink);
      86             : int xrep_setup_ag_rmapbt(struct xfs_scrub *sc);
      87             : int xrep_setup_ag_refcountbt(struct xfs_scrub *sc);
      88             : int xrep_setup_rtsummary(struct xfs_scrub *sc, unsigned int *resblks,
      89             :                 size_t *bufsize);
      90             : int xrep_setup_xattr(struct xfs_scrub *sc);
      91             : int xrep_setup_directory(struct xfs_scrub *sc);
      92             : int xrep_setup_parent(struct xfs_scrub *sc);
      93             : int xrep_setup_nlinks(struct xfs_scrub *sc);
      94             : int xrep_setup_symlink(struct xfs_scrub *sc, unsigned int *resblks);
      95             : int xrep_setup_dirtree(struct xfs_scrub *sc);
      96             : int xrep_setup_rgbitmap(struct xfs_scrub *sc, unsigned int *resblks);
      97             : int xrep_setup_rtrmapbt(struct xfs_scrub *sc);
      98             : int xrep_setup_rtrefcountbt(struct xfs_scrub *sc);
      99             : 
     100             : /* Repair setup functions */
     101             : int xrep_setup_ag_allocbt(struct xfs_scrub *sc);
     102             : 
     103             : struct xfs_imap;
     104             : int xrep_setup_inode(struct xfs_scrub *sc, struct xfs_imap *imap);
     105             : int xrep_setup_rtbitmap(struct xfs_scrub *sc, unsigned int *resblks);
     106             : 
     107             : void xrep_ag_btcur_init(struct xfs_scrub *sc, struct xchk_ag *sa);
     108             : int xrep_ag_init(struct xfs_scrub *sc, struct xfs_perag *pag,
     109             :                 struct xchk_ag *sa);
     110             : #ifdef CONFIG_XFS_RT
     111             : int xrep_rtgroup_init(struct xfs_scrub *sc, struct xfs_rtgroup *rtg,
     112             :                 struct xchk_rt *sr, unsigned int rtglock_flags);
     113             : void xrep_rtgroup_btcur_init(struct xfs_scrub *sc, struct xchk_rt *sr);
     114             : int xrep_require_rtext_inuse(struct xfs_scrub *sc, xfs_rtblock_t rtbno,
     115             :                 xfs_filblks_t len, bool must_align);
     116             : xfs_extlen_t xrep_calc_rtgroup_resblks(struct xfs_scrub *sc);
     117             : #else
     118             : # define xrep_rtgroup_init(sc, rtg, sr, lockflags)      (-ENOSYS)
     119             : # define xrep_calc_rtgroup_resblks(sc)                  (0)
     120             : #endif /* CONFIG_XFS_RT */
     121             : 
     122             : bool xrep_is_rtmeta_ino(struct xfs_scrub *sc, struct xfs_rtgroup *rtg,
     123             :                 xfs_ino_t ino);
     124             : int xrep_check_ino_btree_mapping(struct xfs_scrub *sc,
     125             :                 const struct xfs_rmap_irec *rec);
     126             : 
     127             : /* Metadata revalidators */
     128             : 
     129             : int xrep_revalidate_allocbt(struct xfs_scrub *sc);
     130             : int xrep_revalidate_iallocbt(struct xfs_scrub *sc);
     131             : 
     132             : /* Metadata repairers */
     133             : 
     134             : int xrep_probe(struct xfs_scrub *sc);
     135             : int xrep_superblock(struct xfs_scrub *sc);
     136             : int xrep_agf(struct xfs_scrub *sc);
     137             : int xrep_agfl(struct xfs_scrub *sc);
     138             : int xrep_agi(struct xfs_scrub *sc);
     139             : int xrep_allocbt(struct xfs_scrub *sc);
     140             : int xrep_iallocbt(struct xfs_scrub *sc);
     141             : int xrep_rmapbt(struct xfs_scrub *sc);
     142             : int xrep_refcountbt(struct xfs_scrub *sc);
     143             : int xrep_inode(struct xfs_scrub *sc);
     144             : int xrep_bmap_data(struct xfs_scrub *sc);
     145             : int xrep_bmap_attr(struct xfs_scrub *sc);
     146             : int xrep_bmap_cow(struct xfs_scrub *sc);
     147             : int xrep_nlinks(struct xfs_scrub *sc);
     148             : int xrep_fscounters(struct xfs_scrub *sc);
     149             : int xrep_xattr(struct xfs_scrub *sc);
     150             : int xrep_directory(struct xfs_scrub *sc);
     151             : int xrep_parent(struct xfs_scrub *sc);
     152             : int xrep_symlink(struct xfs_scrub *sc);
     153             : int xrep_dirtree(struct xfs_scrub *sc);
     154             : 
     155             : #ifdef CONFIG_XFS_RT
     156             : int xrep_rtbitmap(struct xfs_scrub *sc);
     157             : int xrep_rtsummary(struct xfs_scrub *sc);
     158             : int xrep_rgsuperblock(struct xfs_scrub *sc);
     159             : int xrep_rgbitmap(struct xfs_scrub *sc);
     160             : int xrep_rtrmapbt(struct xfs_scrub *sc);
     161             : int xrep_rtrefcountbt(struct xfs_scrub *sc);
     162             : #else
     163             : # define xrep_rtbitmap                  xrep_notsupported
     164             : # define xrep_rtsummary                 xrep_notsupported
     165             : # define xrep_rgsuperblock              xrep_notsupported
     166             : # define xrep_rgbitmap                  xrep_notsupported
     167             : # define xrep_rtrmapbt                  xrep_notsupported
     168             : # define xrep_rtrefcountbt              xrep_notsupported
     169             : #endif /* CONFIG_XFS_RT */
     170             : 
     171             : #ifdef CONFIG_XFS_QUOTA
     172             : int xrep_quota(struct xfs_scrub *sc);
     173             : int xrep_quotacheck(struct xfs_scrub *sc);
     174             : #else
     175             : # define xrep_quota                     xrep_notsupported
     176             : # define xrep_quotacheck                xrep_notsupported
     177             : #endif /* CONFIG_XFS_QUOTA */
     178             : 
     179             : int xrep_reinit_pagf(struct xfs_scrub *sc);
     180             : int xrep_reinit_pagi(struct xfs_scrub *sc);
     181             : 
     182             : int xrep_trans_alloc_hook_dummy(struct xfs_mount *mp, void **cookiep,
     183             :                 struct xfs_trans **tpp);
     184             : void xrep_trans_cancel_hook_dummy(void **cookiep, struct xfs_trans *tp);
     185             : 
     186             : bool xrep_buf_verify_struct(struct xfs_buf *bp, const struct xfs_buf_ops *ops);
     187             : void xrep_inode_set_nblocks(struct xfs_scrub *sc, int64_t new_blocks);
     188             : int xrep_reset_imeta_reservation(struct xfs_scrub *sc);
     189             : 
     190             : #else
     191             : 
     192             : #define xrep_ino_dqattach(sc)   (0)
     193             : #define xrep_will_attempt(sc)   (false)
     194             : 
     195             : static inline int
     196             : xrep_attempt(
     197             :         struct xfs_scrub        *sc,
     198             :         struct xchk_stats_run   *run)
     199             : {
     200             :         return -EOPNOTSUPP;
     201             : }
     202             : 
     203             : static inline void xrep_failure(struct xfs_mount *mp) {}
     204             : 
     205             : static inline xfs_extlen_t
     206             : xrep_calc_ag_resblks(
     207             :         struct xfs_scrub        *sc)
     208             : {
     209             :         return 0;
     210             : }
     211             : 
     212             : #define xrep_calc_rtgroup_resblks       xrep_calc_ag_resblks
     213             : 
     214             : static inline int
     215             : xrep_reset_perag_resv(
     216             :         struct xfs_scrub        *sc)
     217             : {
     218             :         if (!(sc->flags & XREP_RESET_PERAG_RESV))
     219             :                 return 0;
     220             : 
     221             :         ASSERT(0);
     222             :         return -EOPNOTSUPP;
     223             : }
     224             : 
     225             : /* repair setup functions for no-repair */
     226             : static inline int
     227             : xrep_setup_nothing(
     228             :         struct xfs_scrub        *sc)
     229             : {
     230             :         return 0;
     231             : }
     232             : #define xrep_setup_ag_allocbt           xrep_setup_nothing
     233             : #define xrep_setup_ag_rmapbt            xrep_setup_nothing
     234             : #define xrep_setup_ag_refcountbt        xrep_setup_nothing
     235             : #define xrep_setup_xattr                xrep_setup_nothing
     236             : #define xrep_setup_directory            xrep_setup_nothing
     237             : #define xrep_setup_parent               xrep_setup_nothing
     238             : #define xrep_setup_nlinks               xrep_setup_nothing
     239             : #define xrep_setup_dirtree              xrep_setup_nothing
     240             : #define xrep_setup_rtrmapbt             xrep_setup_nothing
     241             : #define xrep_setup_rtrefcountbt         xrep_setup_nothing
     242             : 
     243             : #define xrep_setup_inode(sc, imap)      ((void)0)
     244             : 
     245             : static inline int xrep_setup_rtbitmap(struct xfs_scrub *sc, unsigned int *x)
     246             : {
     247             :         return 0;
     248             : }
     249             : 
     250             : static inline int
     251             : xrep_setup_rtsummary(
     252             :         struct xfs_scrub        *sc,
     253             :         unsigned int            *whatever,
     254             :         size_t                  *dontcare)
     255             : {
     256             :         return 0;
     257             : }
     258             : 
     259             : static inline int xrep_setup_symlink(struct xfs_scrub *sc, unsigned int *x)
     260             : {
     261             :         return 0;
     262             : }
     263             : 
     264             : static inline int xrep_setup_rgbitmap(struct xfs_scrub *sc, unsigned int *x)
     265             : {
     266             :         return 0;
     267             : }
     268             : 
     269             : #define xrep_revalidate_allocbt         (NULL)
     270             : #define xrep_revalidate_iallocbt        (NULL)
     271             : 
     272             : #define xrep_probe                      xrep_notsupported
     273             : #define xrep_superblock                 xrep_notsupported
     274             : #define xrep_agf                        xrep_notsupported
     275             : #define xrep_agfl                       xrep_notsupported
     276             : #define xrep_agi                        xrep_notsupported
     277             : #define xrep_allocbt                    xrep_notsupported
     278             : #define xrep_iallocbt                   xrep_notsupported
     279             : #define xrep_rmapbt                     xrep_notsupported
     280             : #define xrep_refcountbt                 xrep_notsupported
     281             : #define xrep_inode                      xrep_notsupported
     282             : #define xrep_bmap_data                  xrep_notsupported
     283             : #define xrep_bmap_attr                  xrep_notsupported
     284             : #define xrep_bmap_cow                   xrep_notsupported
     285             : #define xrep_rtbitmap                   xrep_notsupported
     286             : #define xrep_quota                      xrep_notsupported
     287             : #define xrep_quotacheck                 xrep_notsupported
     288             : #define xrep_nlinks                     xrep_notsupported
     289             : #define xrep_fscounters                 xrep_notsupported
     290             : #define xrep_rtsummary                  xrep_notsupported
     291             : #define xrep_xattr                      xrep_notsupported
     292             : #define xrep_directory                  xrep_notsupported
     293             : #define xrep_parent                     xrep_notsupported
     294             : #define xrep_symlink                    xrep_notsupported
     295             : #define xrep_dirtree                    xrep_notsupported
     296             : #define xrep_rgsuperblock               xrep_notsupported
     297             : #define xrep_rgbitmap                   xrep_notsupported
     298             : #define xrep_rtrmapbt                   xrep_notsupported
     299             : #define xrep_rtrefcountbt               xrep_notsupported
     300             : 
     301             : #endif /* CONFIG_XFS_ONLINE_REPAIR */
     302             : 
     303             : #endif  /* __XFS_SCRUB_REPAIR_H__ */