diff options
Diffstat (limited to 'fs/xfs/scrub/rmap_repair.c')
-rw-r--r-- | fs/xfs/scrub/rmap_repair.c | 138 |
1 files changed, 92 insertions, 46 deletions
diff --git a/fs/xfs/scrub/rmap_repair.c b/fs/xfs/scrub/rmap_repair.c index e8e07b683eab..f5f73078ffe2 100644 --- a/fs/xfs/scrub/rmap_repair.c +++ b/fs/xfs/scrub/rmap_repair.c @@ -31,6 +31,9 @@ #include "xfs_refcount.h" #include "xfs_refcount_btree.h" #include "xfs_ag.h" +#include "xfs_rtrmap_btree.h" +#include "xfs_rtgroup.h" +#include "xfs_rtrefcount_btree.h" #include "scrub/xfs_scrub.h" #include "scrub/scrub.h" #include "scrub/common.h" @@ -231,7 +234,7 @@ xrep_rmap_stash( if (xchk_iscan_aborted(&rr->iscan)) return -EFSCORRUPTED; - trace_xrep_rmap_found(sc->mp, sc->sa.pag->pag_agno, &rmap); + trace_xrep_rmap_found(sc->sa.pag, &rmap); mutex_lock(&rr->lock); mcur = xfs_rmapbt_mem_cursor(sc->sa.pag, sc->tp, &rr->rmap_btree); @@ -344,7 +347,7 @@ xrep_rmap_visit_bmbt( int error; if (XFS_FSB_TO_AGNO(mp, rec->br_startblock) != - rf->rr->sc->sa.pag->pag_agno) + pag_agno(rf->rr->sc->sa.pag)) return 0; agbno = XFS_FSB_TO_AGBNO(mp, rec->br_startblock); @@ -391,7 +394,7 @@ xrep_rmap_visit_iroot_btree_block( return 0; fsbno = XFS_DADDR_TO_FSB(cur->bc_mp, xfs_buf_daddr(bp)); - if (XFS_FSB_TO_AGNO(cur->bc_mp, fsbno) != rf->rr->sc->sa.pag->pag_agno) + if (XFS_FSB_TO_AGNO(cur->bc_mp, fsbno) != pag_agno(rf->rr->sc->sa.pag)) return 0; agbno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno); @@ -432,14 +435,6 @@ out: return error; } -static inline bool -is_rt_data_fork( - struct xfs_inode *ip, - int whichfork) -{ - return XFS_IS_REALTIME_INODE(ip) && whichfork == XFS_DATA_FORK; -} - /* * Iterate the block mapping btree to collect rmap records for anything in this * fork that matches the AG. Sets @mappings_done to true if we've scanned the @@ -507,6 +502,69 @@ xrep_rmap_scan_iext( return xrep_rmap_stash_accumulated(rf); } +static int +xrep_rmap_scan_meta_btree( + struct xrep_rmap_ifork *rf, + struct xfs_inode *ip) +{ + struct xfs_scrub *sc = rf->rr->sc; + struct xfs_rtgroup *rtg = NULL; + struct xfs_btree_cur *cur = NULL; + enum xfs_rtg_inodes type; + int error; + + if (rf->whichfork != XFS_DATA_FORK) + return -EFSCORRUPTED; + + switch (ip->i_metatype) { + case XFS_METAFILE_RTRMAP: + type = XFS_RTGI_RMAP; + break; + case XFS_METAFILE_RTREFCOUNT: + type = XFS_RTGI_REFCOUNT; + break; + default: + ASSERT(0); + return -EFSCORRUPTED; + } + + while ((rtg = xfs_rtgroup_next(sc->mp, rtg))) { + if (ip == rtg->rtg_inodes[type]) + goto found; + } + + /* + * We should never find an rt metadata btree inode that isn't + * associated with an rtgroup yet has ondisk blocks allocated to it. + */ + if (ip->i_nblocks) { + ASSERT(0); + return -EFSCORRUPTED; + } + + return 0; + +found: + switch (ip->i_metatype) { + case XFS_METAFILE_RTRMAP: + cur = xfs_rtrmapbt_init_cursor(sc->tp, rtg); + break; + case XFS_METAFILE_RTREFCOUNT: + cur = xfs_rtrefcountbt_init_cursor(sc->tp, rtg); + break; + default: + ASSERT(0); + error = -EFSCORRUPTED; + goto out_rtg; + } + + error = xrep_rmap_scan_iroot_btree(rf, cur); + xfs_btree_del_cursor(cur, error); +out_rtg: + xfs_rtgroup_rele(rtg); + return error; +} + /* Find all the extents from a given AG in an inode fork. */ STATIC int xrep_rmap_scan_ifork( @@ -520,14 +578,14 @@ xrep_rmap_scan_ifork( .whichfork = whichfork, }; struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork); + bool mappings_done; int error = 0; if (!ifp) return 0; - if (ifp->if_format == XFS_DINODE_FMT_BTREE) { - bool mappings_done; - + switch (ifp->if_format) { + case XFS_DINODE_FMT_BTREE: /* * Scan the bmap btree for data device mappings. This includes * the btree blocks themselves, even if this is a realtime @@ -536,15 +594,18 @@ xrep_rmap_scan_ifork( error = xrep_rmap_scan_bmbt(&rf, ip, &mappings_done); if (error || mappings_done) return error; - } else if (ifp->if_format != XFS_DINODE_FMT_EXTENTS) { - return 0; + fallthrough; + case XFS_DINODE_FMT_EXTENTS: + /* Scan incore extent cache if this isn't a realtime file. */ + if (xfs_ifork_is_realtime(ip, whichfork)) + return 0; + + return xrep_rmap_scan_iext(&rf, ifp); + case XFS_DINODE_FMT_META_BTREE: + return xrep_rmap_scan_meta_btree(&rf, ip); } - /* Scan incore extent cache if this isn't a realtime file. */ - if (xfs_ifork_is_realtime(ip, whichfork)) - return 0; - - return xrep_rmap_scan_iext(&rf, ifp); + return 0; } /* @@ -578,23 +639,9 @@ xrep_rmap_scan_inode( struct xrep_rmap *rr, struct xfs_inode *ip) { - unsigned int lock_mode = 0; + unsigned int lock_mode = xrep_rmap_scan_ilock(ip); int error; - /* - * Directory updates (create/link/unlink/rename) drop the directory's - * ILOCK before finishing any rmapbt updates associated with directory - * shape changes. For this scan to coordinate correctly with the live - * update hook, we must take the only lock (i_rwsem) that is held all - * the way to dir op completion. This will get fixed by the parent - * pointer patchset. - */ - if (S_ISDIR(VFS_I(ip)->i_mode)) { - lock_mode = XFS_IOLOCK_SHARED; - xfs_ilock(ip, lock_mode); - } - lock_mode |= xrep_rmap_scan_ilock(ip); - /* Check the data fork. */ error = xrep_rmap_scan_ifork(rr, ip, XFS_DATA_FORK); if (error) @@ -644,7 +691,7 @@ xrep_rmap_walk_inobt( return error; xfs_inobt_btrec_to_irec(mp, rec, &irec); - if (xfs_inobt_check_irec(cur->bc_ag.pag, &irec) != NULL) + if (xfs_inobt_check_irec(to_perag(cur->bc_group), &irec) != NULL) return -EFSCORRUPTED; agino = irec.ir_startino; @@ -823,7 +870,7 @@ xrep_rmap_find_log_rmaps( { struct xfs_scrub *sc = rr->sc; - if (!xfs_ag_contains_log(sc->mp, sc->sa.pag->pag_agno)) + if (!xfs_ag_contains_log(sc->mp, pag_agno(sc->sa.pag))) return 0; return xrep_rmap_stash(rr, @@ -998,7 +1045,7 @@ xrep_rmap_try_reserve( { struct xrep_rmap_agfl ra = { .bitmap = freesp_blocks, - .agno = rr->sc->sa.pag->pag_agno, + .agno = pag_agno(rr->sc->sa.pag), }; struct xfs_scrub *sc = rr->sc; struct xrep_newbt_resv *resv, *n; @@ -1294,7 +1341,6 @@ xrep_rmap_build_new_tree( struct xfs_perag *pag = sc->sa.pag; struct xfs_agf *agf = sc->sa.agf_bp->b_addr; struct xfs_btree_cur *rmap_cur; - xfs_fsblock_t fsbno; int error; /* @@ -1312,9 +1358,9 @@ xrep_rmap_build_new_tree( * rmapbt per-AG reservation, which we will adjust further after * committing the new btree. */ - fsbno = XFS_AGB_TO_FSB(sc->mp, pag->pag_agno, XFS_RMAP_BLOCK(sc->mp)); xrep_newbt_init_ag(&rr->new_btree, sc, &XFS_RMAP_OINFO_SKIP_UPDATE, - fsbno, XFS_AG_RESV_RMAPBT); + xfs_agbno_to_fsb(pag, XFS_RMAP_BLOCK(sc->mp)), + XFS_AG_RESV_RMAPBT); rr->new_btree.bload.get_records = xrep_rmap_get_records; rr->new_btree.bload.claim_block = xrep_rmap_claim_block; rr->new_btree.alloc_vextent = xrep_rmap_alloc_vextent; @@ -1575,7 +1621,7 @@ xrep_rmapbt_live_update( if (!xrep_rmapbt_want_live_update(&rr->iscan, &p->oinfo)) goto out_unlock; - trace_xrep_rmap_live_update(mp, rr->sc->sa.pag->pag_agno, action, p); + trace_xrep_rmap_live_update(pag_group(rr->sc->sa.pag), action, p); error = xrep_trans_alloc_hook_dummy(mp, &txcookie, &tp); if (error) @@ -1619,7 +1665,7 @@ xrep_rmap_setup_scan( /* Set up in-memory rmap btree */ error = xfs_rmapbt_mem_init(sc->mp, &rr->rmap_btree, sc->xmbtp, - sc->sa.pag->pag_agno); + pag_agno(sc->sa.pag)); if (error) goto out_mutex; @@ -1634,7 +1680,7 @@ xrep_rmap_setup_scan( */ ASSERT(sc->flags & XCHK_FSGATES_RMAP); xfs_rmap_hook_setup(&rr->rhook, xrep_rmapbt_live_update); - error = xfs_rmap_hook_add(sc->sa.pag, &rr->rhook); + error = xfs_rmap_hook_add(pag_group(sc->sa.pag), &rr->rhook); if (error) goto out_iscan; return 0; @@ -1655,7 +1701,7 @@ xrep_rmap_teardown( struct xfs_scrub *sc = rr->sc; xchk_iscan_abort(&rr->iscan); - xfs_rmap_hook_del(sc->sa.pag, &rr->rhook); + xfs_rmap_hook_del(pag_group(sc->sa.pag), &rr->rhook); xchk_iscan_teardown(&rr->iscan); xfbtree_destroy(&rr->rmap_btree); mutex_destroy(&rr->lock); |