diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_bmap.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 377 |
1 files changed, 164 insertions, 213 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 2f2c85cc8117..9d7f61d36645 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -24,6 +24,7 @@ #include "xfs_bit.h" #include "xfs_sb.h" #include "xfs_mount.h" +#include "xfs_defer.h" #include "xfs_da_format.h" #include "xfs_da_btree.h" #include "xfs_dir2.h" @@ -45,6 +46,8 @@ #include "xfs_symlink.h" #include "xfs_attr_leaf.h" #include "xfs_filestream.h" +#include "xfs_rmap.h" +#include "xfs_ag_resv.h" kmem_zone_t *xfs_bmap_free_item_zone; @@ -570,12 +573,13 @@ xfs_bmap_validate_ret( */ void xfs_bmap_add_free( - struct xfs_mount *mp, /* mount point structure */ - struct xfs_bmap_free *flist, /* list of extents */ - xfs_fsblock_t bno, /* fs block number of extent */ - xfs_filblks_t len) /* length of extent */ + struct xfs_mount *mp, + struct xfs_defer_ops *dfops, + xfs_fsblock_t bno, + xfs_filblks_t len, + struct xfs_owner_info *oinfo) { - struct xfs_bmap_free_item *new; /* new element */ + struct xfs_extent_free_item *new; /* new element */ #ifdef DEBUG xfs_agnumber_t agno; xfs_agblock_t agbno; @@ -592,44 +596,17 @@ xfs_bmap_add_free( ASSERT(agbno + len <= mp->m_sb.sb_agblocks); #endif ASSERT(xfs_bmap_free_item_zone != NULL); - new = kmem_zone_alloc(xfs_bmap_free_item_zone, KM_SLEEP); - new->xbfi_startblock = bno; - new->xbfi_blockcount = (xfs_extlen_t)len; - list_add(&new->xbfi_list, &flist->xbf_flist); - flist->xbf_count++; -} - -/* - * Remove the entry "free" from the free item list. Prev points to the - * previous entry, unless "free" is the head of the list. - */ -void -xfs_bmap_del_free( - struct xfs_bmap_free *flist, /* free item list header */ - struct xfs_bmap_free_item *free) /* list item to be freed */ -{ - list_del(&free->xbfi_list); - flist->xbf_count--; - kmem_zone_free(xfs_bmap_free_item_zone, free); -} - -/* - * Free up any items left in the list. - */ -void -xfs_bmap_cancel( - struct xfs_bmap_free *flist) /* list of bmap_free_items */ -{ - struct xfs_bmap_free_item *free; /* free list item */ - if (flist->xbf_count == 0) - return; - while (!list_empty(&flist->xbf_flist)) { - free = list_first_entry(&flist->xbf_flist, - struct xfs_bmap_free_item, xbfi_list); - xfs_bmap_del_free(flist, free); - } - ASSERT(flist->xbf_count == 0); + new = kmem_zone_alloc(xfs_bmap_free_item_zone, KM_SLEEP); + new->xefi_startblock = bno; + new->xefi_blockcount = (xfs_extlen_t)len; + if (oinfo) + new->xefi_oinfo = *oinfo; + else + xfs_rmap_skip_owner_update(&new->xefi_oinfo); + trace_xfs_bmap_free_defer(mp, XFS_FSB_TO_AGNO(mp, bno), 0, + XFS_FSB_TO_AGBNO(mp, bno), len); + xfs_defer_add(dfops, XFS_DEFER_OPS_TYPE_FREE, &new->xefi_list); } /* @@ -659,6 +636,7 @@ xfs_bmap_btree_to_extents( xfs_mount_t *mp; /* mount point structure */ __be64 *pp; /* ptr to block address */ struct xfs_btree_block *rblock;/* root btree block */ + struct xfs_owner_info oinfo; mp = ip->i_mount; ifp = XFS_IFORK_PTR(ip, whichfork); @@ -682,7 +660,8 @@ xfs_bmap_btree_to_extents( cblock = XFS_BUF_TO_BLOCK(cbp); if ((error = xfs_btree_check_block(cur, cblock, 0, cbp))) return error; - xfs_bmap_add_free(mp, cur->bc_private.b.flist, cbno, 1); + xfs_rmap_ino_bmbt_owner(&oinfo, ip->i_ino, whichfork); + xfs_bmap_add_free(mp, cur->bc_private.b.dfops, cbno, 1, &oinfo); ip->i_d.di_nblocks--; xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, -1L); xfs_trans_binval(tp, cbp); @@ -705,7 +684,7 @@ xfs_bmap_extents_to_btree( xfs_trans_t *tp, /* transaction pointer */ xfs_inode_t *ip, /* incore inode pointer */ xfs_fsblock_t *firstblock, /* first-block-allocated */ - xfs_bmap_free_t *flist, /* blocks freed in xaction */ + struct xfs_defer_ops *dfops, /* blocks freed in xaction */ xfs_btree_cur_t **curp, /* cursor returned to caller */ int wasdel, /* converting a delayed alloc */ int *logflagsp, /* inode logging flags */ @@ -754,7 +733,7 @@ xfs_bmap_extents_to_btree( */ cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstblock; - cur->bc_private.b.flist = flist; + cur->bc_private.b.dfops = dfops; cur->bc_private.b.flags = wasdel ? XFS_BTCUR_BPRV_WASDEL : 0; /* * Convert to a btree with two levels, one record in root. @@ -763,11 +742,12 @@ xfs_bmap_extents_to_btree( memset(&args, 0, sizeof(args)); args.tp = tp; args.mp = mp; + xfs_rmap_ino_bmbt_owner(&args.oinfo, ip->i_ino, whichfork); args.firstblock = *firstblock; if (*firstblock == NULLFSBLOCK) { args.type = XFS_ALLOCTYPE_START_BNO; args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino); - } else if (flist->xbf_low) { + } else if (dfops->dop_low) { args.type = XFS_ALLOCTYPE_START_BNO; args.fsbno = *firstblock; } else { @@ -788,7 +768,7 @@ xfs_bmap_extents_to_btree( ASSERT(args.fsbno != NULLFSBLOCK); ASSERT(*firstblock == NULLFSBLOCK || args.agno == XFS_FSB_TO_AGNO(mp, *firstblock) || - (flist->xbf_low && + (dfops->dop_low && args.agno > XFS_FSB_TO_AGNO(mp, *firstblock))); *firstblock = cur->bc_private.b.firstblock = args.fsbno; cur->bc_private.b.allocated++; @@ -909,6 +889,7 @@ xfs_bmap_local_to_extents( memset(&args, 0, sizeof(args)); args.tp = tp; args.mp = ip->i_mount; + xfs_rmap_ino_owner(&args.oinfo, ip->i_ino, whichfork, 0); args.firstblock = *firstblock; /* * Allocate a block. We know we need only one, since the @@ -973,7 +954,7 @@ xfs_bmap_add_attrfork_btree( xfs_trans_t *tp, /* transaction pointer */ xfs_inode_t *ip, /* incore inode pointer */ xfs_fsblock_t *firstblock, /* first block allocated */ - xfs_bmap_free_t *flist, /* blocks to free at commit */ + struct xfs_defer_ops *dfops, /* blocks to free at commit */ int *flags) /* inode logging flags */ { xfs_btree_cur_t *cur; /* btree cursor */ @@ -986,7 +967,7 @@ xfs_bmap_add_attrfork_btree( *flags |= XFS_ILOG_DBROOT; else { cur = xfs_bmbt_init_cursor(mp, tp, ip, XFS_DATA_FORK); - cur->bc_private.b.flist = flist; + cur->bc_private.b.dfops = dfops; cur->bc_private.b.firstblock = *firstblock; if ((error = xfs_bmbt_lookup_ge(cur, 0, 0, 0, &stat))) goto error0; @@ -1016,7 +997,7 @@ xfs_bmap_add_attrfork_extents( xfs_trans_t *tp, /* transaction pointer */ xfs_inode_t *ip, /* incore inode pointer */ xfs_fsblock_t *firstblock, /* first block allocated */ - xfs_bmap_free_t *flist, /* blocks to free at commit */ + struct xfs_defer_ops *dfops, /* blocks to free at commit */ int *flags) /* inode logging flags */ { xfs_btree_cur_t *cur; /* bmap btree cursor */ @@ -1025,7 +1006,7 @@ xfs_bmap_add_attrfork_extents( if (ip->i_d.di_nextents * sizeof(xfs_bmbt_rec_t) <= XFS_IFORK_DSIZE(ip)) return 0; cur = NULL; - error = xfs_bmap_extents_to_btree(tp, ip, firstblock, flist, &cur, 0, + error = xfs_bmap_extents_to_btree(tp, ip, firstblock, dfops, &cur, 0, flags, XFS_DATA_FORK); if (cur) { cur->bc_private.b.allocated = 0; @@ -1051,7 +1032,7 @@ xfs_bmap_add_attrfork_local( xfs_trans_t *tp, /* transaction pointer */ xfs_inode_t *ip, /* incore inode pointer */ xfs_fsblock_t *firstblock, /* first block allocated */ - xfs_bmap_free_t *flist, /* blocks to free at commit */ + struct xfs_defer_ops *dfops, /* blocks to free at commit */ int *flags) /* inode logging flags */ { xfs_da_args_t dargs; /* args for dir/attr code */ @@ -1064,7 +1045,7 @@ xfs_bmap_add_attrfork_local( dargs.geo = ip->i_mount->m_dir_geo; dargs.dp = ip; dargs.firstblock = firstblock; - dargs.flist = flist; + dargs.dfops = dfops; dargs.total = dargs.geo->fsbcount; dargs.whichfork = XFS_DATA_FORK; dargs.trans = tp; @@ -1092,7 +1073,7 @@ xfs_bmap_add_attrfork( int rsvd) /* xact may use reserved blks */ { xfs_fsblock_t firstblock; /* 1st block/ag allocated */ - xfs_bmap_free_t flist; /* freed extent records */ + struct xfs_defer_ops dfops; /* freed extent records */ xfs_mount_t *mp; /* mount structure */ xfs_trans_t *tp; /* transaction pointer */ int blks; /* space reservation */ @@ -1158,18 +1139,18 @@ xfs_bmap_add_attrfork( ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP); ip->i_afp->if_flags = XFS_IFEXTENTS; logflags = 0; - xfs_bmap_init(&flist, &firstblock); + xfs_defer_init(&dfops, &firstblock); switch (ip->i_d.di_format) { case XFS_DINODE_FMT_LOCAL: - error = xfs_bmap_add_attrfork_local(tp, ip, &firstblock, &flist, + error = xfs_bmap_add_attrfork_local(tp, ip, &firstblock, &dfops, &logflags); break; case XFS_DINODE_FMT_EXTENTS: error = xfs_bmap_add_attrfork_extents(tp, ip, &firstblock, - &flist, &logflags); + &dfops, &logflags); break; case XFS_DINODE_FMT_BTREE: - error = xfs_bmap_add_attrfork_btree(tp, ip, &firstblock, &flist, + error = xfs_bmap_add_attrfork_btree(tp, ip, &firstblock, &dfops, &logflags); break; default: @@ -1198,7 +1179,7 @@ xfs_bmap_add_attrfork( xfs_log_sb(tp); } - error = xfs_bmap_finish(&tp, &flist, NULL); + error = xfs_defer_finish(&tp, &dfops, NULL); if (error) goto bmap_cancel; error = xfs_trans_commit(tp); @@ -1206,7 +1187,7 @@ xfs_bmap_add_attrfork( return error; bmap_cancel: - xfs_bmap_cancel(&flist); + xfs_defer_cancel(&dfops); trans_cancel: xfs_trans_cancel(tp); xfs_iunlock(ip, XFS_ILOCK_EXCL); @@ -1408,7 +1389,7 @@ xfs_bmap_search_multi_extents( * Else, *lastxp will be set to the index of the found * entry; *gotp will contain the entry. */ -STATIC xfs_bmbt_rec_host_t * /* pointer to found extent entry */ +xfs_bmbt_rec_host_t * /* pointer to found extent entry */ xfs_bmap_search_extents( xfs_inode_t *ip, /* incore inode pointer */ xfs_fileoff_t bno, /* block number searched for */ @@ -2003,7 +1984,7 @@ xfs_bmap_add_extent_delay_real( if (xfs_bmap_needs_btree(bma->ip, whichfork)) { error = xfs_bmap_extents_to_btree(bma->tp, bma->ip, - bma->firstblock, bma->flist, + bma->firstblock, bma->dfops, &bma->cur, 1, &tmp_rval, whichfork); rval |= tmp_rval; if (error) @@ -2087,7 +2068,7 @@ xfs_bmap_add_extent_delay_real( if (xfs_bmap_needs_btree(bma->ip, whichfork)) { error = xfs_bmap_extents_to_btree(bma->tp, bma->ip, - bma->firstblock, bma->flist, &bma->cur, 1, + bma->firstblock, bma->dfops, &bma->cur, 1, &tmp_rval, whichfork); rval |= tmp_rval; if (error) @@ -2156,7 +2137,7 @@ xfs_bmap_add_extent_delay_real( if (xfs_bmap_needs_btree(bma->ip, whichfork)) { error = xfs_bmap_extents_to_btree(bma->tp, bma->ip, - bma->firstblock, bma->flist, &bma->cur, + bma->firstblock, bma->dfops, &bma->cur, 1, &tmp_rval, whichfork); rval |= tmp_rval; if (error) @@ -2199,13 +2180,18 @@ xfs_bmap_add_extent_delay_real( ASSERT(0); } + /* add reverse mapping */ + error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip, whichfork, new); + if (error) + goto done; + /* convert to a btree if necessary */ if (xfs_bmap_needs_btree(bma->ip, whichfork)) { int tmp_logflags; /* partial log flag return val */ ASSERT(bma->cur == NULL); error = xfs_bmap_extents_to_btree(bma->tp, bma->ip, - bma->firstblock, bma->flist, &bma->cur, + bma->firstblock, bma->dfops, &bma->cur, da_old > 0, &tmp_logflags, whichfork); bma->logflags |= tmp_logflags; if (error) @@ -2247,7 +2233,7 @@ xfs_bmap_add_extent_unwritten_real( xfs_btree_cur_t **curp, /* if *curp is null, not a btree */ xfs_bmbt_irec_t *new, /* new data to add to file extents */ xfs_fsblock_t *first, /* pointer to firstblock variable */ - xfs_bmap_free_t *flist, /* list of extents to be freed */ + struct xfs_defer_ops *dfops, /* list of extents to be freed */ int *logflagsp) /* inode logging flags */ { xfs_btree_cur_t *cur; /* btree cursor */ @@ -2735,12 +2721,17 @@ xfs_bmap_add_extent_unwritten_real( ASSERT(0); } + /* update reverse mappings */ + error = xfs_rmap_convert_extent(mp, dfops, ip, XFS_DATA_FORK, new); + if (error) + goto done; + /* convert to a btree if necessary */ if (xfs_bmap_needs_btree(ip, XFS_DATA_FORK)) { int tmp_logflags; /* partial log flag return val */ ASSERT(cur == NULL); - error = xfs_bmap_extents_to_btree(tp, ip, first, flist, &cur, + error = xfs_bmap_extents_to_btree(tp, ip, first, dfops, &cur, 0, &tmp_logflags, XFS_DATA_FORK); *logflagsp |= tmp_logflags; if (error) @@ -3127,13 +3118,18 @@ xfs_bmap_add_extent_hole_real( break; } + /* add reverse mapping */ + error = xfs_rmap_map_extent(mp, bma->dfops, bma->ip, whichfork, new); + if (error) + goto done; + /* convert to a btree if necessary */ if (xfs_bmap_needs_btree(bma->ip, whichfork)) { int tmp_logflags; /* partial log flag return val */ ASSERT(bma->cur == NULL); error = xfs_bmap_extents_to_btree(bma->tp, bma->ip, - bma->firstblock, bma->flist, &bma->cur, + bma->firstblock, bma->dfops, &bma->cur, 0, &tmp_logflags, whichfork); bma->logflags |= tmp_logflags; if (error) @@ -3352,7 +3348,8 @@ xfs_bmap_adjacent( mp = ap->ip->i_mount; nullfb = *ap->firstblock == NULLFSBLOCK; - rt = XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata; + rt = XFS_IS_REALTIME_INODE(ap->ip) && + xfs_alloc_is_userdata(ap->datatype); fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock); /* * If allocating at eof, and there's a previous real block, @@ -3506,7 +3503,8 @@ xfs_bmap_longest_free_extent( } longest = xfs_alloc_longest_free_extent(mp, pag, - xfs_alloc_min_freelist(mp, pag)); + xfs_alloc_min_freelist(mp, pag), + xfs_ag_resv_needed(pag, XFS_AG_RESV_NONE)); if (*blen < longest) *blen = longest; @@ -3627,7 +3625,7 @@ xfs_bmap_btalloc( { xfs_mount_t *mp; /* mount point structure */ xfs_alloctype_t atype = 0; /* type for allocation routines */ - xfs_extlen_t align; /* minimum allocation alignment */ + xfs_extlen_t align = 0; /* minimum allocation alignment */ xfs_agnumber_t fb_agno; /* ag number of ap->firstblock */ xfs_agnumber_t ag; xfs_alloc_arg_t args; @@ -3650,7 +3648,8 @@ xfs_bmap_btalloc( else if (mp->m_dalign) stripe_align = mp->m_dalign; - align = ap->userdata ? xfs_get_extsz_hint(ap->ip) : 0; + if (xfs_alloc_is_userdata(ap->datatype)) + align = xfs_get_extsz_hint(ap->ip); if (unlikely(align)) { error = xfs_bmap_extsize_align(mp, &ap->got, &ap->prev, align, 0, ap->eof, 0, ap->conv, @@ -3663,7 +3662,8 @@ xfs_bmap_btalloc( nullfb = *ap->firstblock == NULLFSBLOCK; fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock); if (nullfb) { - if (ap->userdata && xfs_inode_is_filestream(ap->ip)) { + if (xfs_alloc_is_userdata(ap->datatype) && + xfs_inode_is_filestream(ap->ip)) { ag = xfs_filestream_lookup_ag(ap->ip); ag = (ag != NULLAGNUMBER) ? ag : 0; ap->blkno = XFS_AGB_TO_FSB(mp, ag, 0); @@ -3691,9 +3691,10 @@ xfs_bmap_btalloc( args.tp = ap->tp; args.mp = mp; args.fsbno = ap->blkno; + xfs_rmap_skip_owner_update(&args.oinfo); /* Trim the allocation back to the maximum an AG can fit. */ - args.maxlen = MIN(ap->length, XFS_ALLOC_AG_MAX_USABLE(mp)); + args.maxlen = MIN(ap->length, mp->m_ag_max_usable); args.firstblock = *ap->firstblock; blen = 0; if (nullfb) { @@ -3702,13 +3703,14 @@ xfs_bmap_btalloc( * enough for the request. If one isn't found, then adjust * the minimum allocation size to the largest space found. */ - if (ap->userdata && xfs_inode_is_filestream(ap->ip)) + if (xfs_alloc_is_userdata(ap->datatype) && + xfs_inode_is_filestream(ap->ip)) error = xfs_bmap_btalloc_filestreams(ap, &args, &blen); else error = xfs_bmap_btalloc_nullfb(ap, &args, &blen); if (error) return error; - } else if (ap->flist->xbf_low) { + } else if (ap->dfops->dop_low) { if (xfs_inode_is_filestream(ap->ip)) args.type = XFS_ALLOCTYPE_FIRST_AG; else @@ -3741,7 +3743,7 @@ xfs_bmap_btalloc( * is >= the stripe unit and the allocation offset is * at the end of file. */ - if (!ap->flist->xbf_low && ap->aeof) { + if (!ap->dfops->dop_low && ap->aeof) { if (!ap->offset) { args.alignment = stripe_align; atype = args.type; @@ -3785,9 +3787,9 @@ xfs_bmap_btalloc( } args.minleft = ap->minleft; args.wasdel = ap->wasdel; - args.isfl = 0; - args.userdata = ap->userdata; - if (ap->userdata & XFS_ALLOC_USERDATA_ZERO) + args.resv = XFS_AG_RESV_NONE; + args.datatype = ap->datatype; + if (ap->datatype & XFS_ALLOC_USERDATA_ZERO) args.ip = ap->ip; error = xfs_alloc_vextent(&args); @@ -3834,7 +3836,7 @@ xfs_bmap_btalloc( args.minleft = 0; if ((error = xfs_alloc_vextent(&args))) return error; - ap->flist->xbf_low = 1; + ap->dfops->dop_low = true; } if (args.fsbno != NULLFSBLOCK) { /* @@ -3844,7 +3846,7 @@ xfs_bmap_btalloc( ASSERT(*ap->firstblock == NULLFSBLOCK || XFS_FSB_TO_AGNO(mp, *ap->firstblock) == XFS_FSB_TO_AGNO(mp, args.fsbno) || - (ap->flist->xbf_low && + (ap->dfops->dop_low && XFS_FSB_TO_AGNO(mp, *ap->firstblock) < XFS_FSB_TO_AGNO(mp, args.fsbno))); @@ -3852,7 +3854,7 @@ xfs_bmap_btalloc( if (*ap->firstblock == NULLFSBLOCK) *ap->firstblock = args.fsbno; ASSERT(nullfb || fb_agno == args.agno || - (ap->flist->xbf_low && fb_agno < args.agno)); + (ap->dfops->dop_low && fb_agno < args.agno)); ap->length = args.len; ap->ip->i_d.di_nblocks += args.len; xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE); @@ -3881,7 +3883,8 @@ STATIC int xfs_bmap_alloc( struct xfs_bmalloca *ap) /* bmap alloc argument struct */ { - if (XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata) + if (XFS_IS_REALTIME_INODE(ap->ip) && + xfs_alloc_is_userdata(ap->datatype)) return xfs_bmap_rtalloc(ap); return xfs_bmap_btalloc(ap); } @@ -4078,7 +4081,7 @@ xfs_bmapi_read( return 0; } -STATIC int +int xfs_bmapi_reserve_delalloc( struct xfs_inode *ip, xfs_fileoff_t aoff, @@ -4174,91 +4177,6 @@ out_unreserve_quota: return error; } -/* - * Map file blocks to filesystem blocks, adding delayed allocations as needed. - */ -int -xfs_bmapi_delay( - struct xfs_inode *ip, /* incore inode */ - xfs_fileoff_t bno, /* starting file offs. mapped */ - xfs_filblks_t len, /* length to map in file */ - struct xfs_bmbt_irec *mval, /* output: map values */ - int *nmap, /* i/o: mval size/count */ - int flags) /* XFS_BMAPI_... */ -{ - struct xfs_mount *mp = ip->i_mount; - struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); - struct xfs_bmbt_irec got; /* current file extent record */ - struct xfs_bmbt_irec prev; /* previous file extent record */ - xfs_fileoff_t obno; /* old block number (offset) */ - xfs_fileoff_t end; /* end of mapped file region */ - xfs_extnum_t lastx; /* last useful extent number */ - int eof; /* we've hit the end of extents */ - int n = 0; /* current extent index */ - int error = 0; - - ASSERT(*nmap >= 1); - ASSERT(*nmap <= XFS_BMAP_MAX_NMAP); - ASSERT(!(flags & ~XFS_BMAPI_ENTIRE)); - ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); - - if (unlikely(XFS_TEST_ERROR( - (XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) != XFS_DINODE_FMT_EXTENTS && - XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) != XFS_DINODE_FMT_BTREE), - mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { - XFS_ERROR_REPORT("xfs_bmapi_delay", XFS_ERRLEVEL_LOW, mp); - return -EFSCORRUPTED; - } - - if (XFS_FORCED_SHUTDOWN(mp)) - return -EIO; - - XFS_STATS_INC(mp, xs_blk_mapw); - - if (!(ifp->if_flags & XFS_IFEXTENTS)) { - error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK); - if (error) - return error; - } - - xfs_bmap_search_extents(ip, bno, XFS_DATA_FORK, &eof, &lastx, &got, &prev); - end = bno + len; - obno = bno; - - while (bno < end && n < *nmap) { - if (eof || got.br_startoff > bno) { - error = xfs_bmapi_reserve_delalloc(ip, bno, len, &got, - &prev, &lastx, eof); - if (error) { - if (n == 0) { - *nmap = 0; - return error; - } - break; - } - } - - /* set up the extent map to return. */ - xfs_bmapi_trim_map(mval, &got, &bno, len, obno, end, n, flags); - xfs_bmapi_update_map(&mval, &bno, &len, obno, end, &n, flags); - - /* If we're done, stop now. */ - if (bno >= end || n >= *nmap) - break; - - /* Else go on to the next record. */ - prev = got; - if (++lastx < ifp->if_bytes / sizeof(xfs_bmbt_rec_t)) - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, lastx), &got); - else - eof = 1; - } - - *nmap = n; - return 0; -} - - static int xfs_bmapi_allocate( struct xfs_bmalloca *bma) @@ -4291,15 +4209,21 @@ xfs_bmapi_allocate( } /* - * Indicate if this is the first user data in the file, or just any - * user data. And if it is userdata, indicate whether it needs to - * be initialised to zero during allocation. + * Set the data type being allocated. For the data fork, the first data + * in the file is treated differently to all other allocations. For the + * attribute fork, we only need to ensure the allocated range is not on + * the busy list. */ if (!(bma->flags & XFS_BMAPI_METADATA)) { - bma->userdata = (bma->offset == 0) ? - XFS_ALLOC_INITIAL_USER_DATA : XFS_ALLOC_USERDATA; + bma->datatype = XFS_ALLOC_NOBUSY; + if (whichfork == XFS_DATA_FORK) { + if (bma->offset == 0) + bma->datatype |= XFS_ALLOC_INITIAL_USER_DATA; + else + bma->datatype |= XFS_ALLOC_USERDATA; + } if (bma->flags & XFS_BMAPI_ZERO) - bma->userdata |= XFS_ALLOC_USERDATA_ZERO; + bma->datatype |= XFS_ALLOC_USERDATA_ZERO; } bma->minlen = (bma->flags & XFS_BMAPI_CONTIG) ? bma->length : 1; @@ -4319,7 +4243,7 @@ xfs_bmapi_allocate( if (error) return error; - if (bma->flist->xbf_low) + if (bma->dfops->dop_low) bma->minleft = 0; if (bma->cur) bma->cur->bc_private.b.firstblock = *bma->firstblock; @@ -4328,7 +4252,7 @@ xfs_bmapi_allocate( if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) { bma->cur = xfs_bmbt_init_cursor(mp, bma->tp, bma->ip, whichfork); bma->cur->bc_private.b.firstblock = *bma->firstblock; - bma->cur->bc_private.b.flist = bma->flist; + bma->cur->bc_private.b.dfops = bma->dfops; } /* * Bump the number of extents we've allocated @@ -4409,7 +4333,7 @@ xfs_bmapi_convert_unwritten( bma->cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp, bma->ip, whichfork); bma->cur->bc_private.b.firstblock = *bma->firstblock; - bma->cur->bc_private.b.flist = bma->flist; + bma->cur->bc_private.b.dfops = bma->dfops; } mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN) ? XFS_EXT_NORM : XFS_EXT_UNWRITTEN; @@ -4426,7 +4350,7 @@ xfs_bmapi_convert_unwritten( } error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, &bma->idx, - &bma->cur, mval, bma->firstblock, bma->flist, + &bma->cur, mval, bma->firstblock, bma->dfops, &tmp_logflags); /* * Log the inode core unconditionally in the unwritten extent conversion @@ -4480,7 +4404,7 @@ xfs_bmapi_write( xfs_extlen_t total, /* total blocks needed */ struct xfs_bmbt_irec *mval, /* output: map values */ int *nmap, /* i/o: mval size/count */ - struct xfs_bmap_free *flist) /* i/o: list extents to free */ + struct xfs_defer_ops *dfops) /* i/o: list extents to free */ { struct xfs_mount *mp = ip->i_mount; struct xfs_ifork *ifp; @@ -4569,8 +4493,8 @@ xfs_bmapi_write( bma.tp = tp; bma.ip = ip; bma.total = total; - bma.userdata = 0; - bma.flist = flist; + bma.datatype = 0; + bma.dfops = dfops; bma.firstblock = firstblock; while (bno < end && n < *nmap) { @@ -4684,7 +4608,7 @@ error0: XFS_FSB_TO_AGNO(mp, *firstblock) == XFS_FSB_TO_AGNO(mp, bma.cur->bc_private.b.firstblock) || - (flist->xbf_low && + (dfops->dop_low && XFS_FSB_TO_AGNO(mp, *firstblock) < XFS_FSB_TO_AGNO(mp, bma.cur->bc_private.b.firstblock))); @@ -4768,7 +4692,7 @@ xfs_bmap_del_extent( xfs_inode_t *ip, /* incore inode pointer */ xfs_trans_t *tp, /* current transaction pointer */ xfs_extnum_t *idx, /* extent number to update/delete */ - xfs_bmap_free_t *flist, /* list of extents to be freed */ + struct xfs_defer_ops *dfops, /* list of extents to be freed */ xfs_btree_cur_t *cur, /* if null, not a btree */ xfs_bmbt_irec_t *del, /* data to remove from extents */ int *logflagsp, /* inode logging flags */ @@ -4870,6 +4794,7 @@ xfs_bmap_del_extent( nblks = 0; do_fx = 0; } + /* * Set flag value to use in switch statement. * Left-contig is 2, right-contig is 1. @@ -5052,12 +4977,20 @@ xfs_bmap_del_extent( ++*idx; break; } + + /* remove reverse mapping */ + if (!delay) { + error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, del); + if (error) + goto done; + } + /* * If we need to, add to list of extents to delete. */ if (do_fx) - xfs_bmap_add_free(mp, flist, del->br_startblock, - del->br_blockcount); + xfs_bmap_add_free(mp, dfops, del->br_startblock, + del->br_blockcount, NULL); /* * Adjust inode # blocks in the file. */ @@ -5097,7 +5030,7 @@ xfs_bunmapi( xfs_extnum_t nexts, /* number of extents max */ xfs_fsblock_t *firstblock, /* first allocated block controls a.g. for allocs */ - xfs_bmap_free_t *flist, /* i/o: list extents to free */ + struct xfs_defer_ops *dfops, /* i/o: list extents to free */ int *done) /* set if not done yet */ { xfs_btree_cur_t *cur; /* bmap btree cursor */ @@ -5170,7 +5103,7 @@ xfs_bunmapi( ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE); cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstblock; - cur->bc_private.b.flist = flist; + cur->bc_private.b.dfops = dfops; cur->bc_private.b.flags = 0; } else cur = NULL; @@ -5179,8 +5112,10 @@ xfs_bunmapi( /* * Synchronize by locking the bitmap inode. */ - xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL); + xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL|XFS_ILOCK_RTBITMAP); xfs_trans_ijoin(tp, mp->m_rbmip, XFS_ILOCK_EXCL); + xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL|XFS_ILOCK_RTSUM); + xfs_trans_ijoin(tp, mp->m_rsumip, XFS_ILOCK_EXCL); } extno = 0; @@ -5262,7 +5197,7 @@ xfs_bunmapi( } del.br_state = XFS_EXT_UNWRITTEN; error = xfs_bmap_add_extent_unwritten_real(tp, ip, - &lastx, &cur, &del, firstblock, flist, + &lastx, &cur, &del, firstblock, dfops, &logflags); if (error) goto error0; @@ -5321,7 +5256,7 @@ xfs_bunmapi( lastx--; error = xfs_bmap_add_extent_unwritten_real(tp, ip, &lastx, &cur, &prev, - firstblock, flist, &logflags); + firstblock, dfops, &logflags); if (error) goto error0; goto nodelete; @@ -5330,7 +5265,7 @@ xfs_bunmapi( del.br_state = XFS_EXT_UNWRITTEN; error = xfs_bmap_add_extent_unwritten_real(tp, ip, &lastx, &cur, &del, - firstblock, flist, &logflags); + firstblock, dfops, &logflags); if (error) goto error0; goto nodelete; @@ -5388,7 +5323,7 @@ xfs_bunmapi( } else if (cur) cur->bc_private.b.flags &= ~XFS_BTCUR_BPRV_WASDEL; - error = xfs_bmap_del_extent(ip, tp, &lastx, flist, cur, &del, + error = xfs_bmap_del_extent(ip, tp, &lastx, dfops, cur, &del, &tmp_logflags, whichfork); logflags |= tmp_logflags; if (error) @@ -5422,7 +5357,7 @@ nodelete: */ if (xfs_bmap_needs_btree(ip, whichfork)) { ASSERT(cur == NULL); - error = xfs_bmap_extents_to_btree(tp, ip, firstblock, flist, + error = xfs_bmap_extents_to_btree(tp, ip, firstblock, dfops, &cur, 0, &tmp_logflags, whichfork); logflags |= tmp_logflags; if (error) @@ -5589,7 +5524,8 @@ xfs_bmse_shift_one( struct xfs_bmbt_rec_host *gotp, struct xfs_btree_cur *cur, int *logflags, - enum shift_direction direction) + enum shift_direction direction, + struct xfs_defer_ops *dfops) { struct xfs_ifork *ifp; struct xfs_mount *mp; @@ -5637,9 +5573,13 @@ xfs_bmse_shift_one( /* check whether to merge the extent or shift it down */ if (xfs_bmse_can_merge(&adj_irec, &got, offset_shift_fsb)) { - return xfs_bmse_merge(ip, whichfork, offset_shift_fsb, - *current_ext, gotp, adj_irecp, - cur, logflags); + error = xfs_bmse_merge(ip, whichfork, offset_shift_fsb, + *current_ext, gotp, adj_irecp, + cur, logflags); + if (error) + return error; + adj_irec = got; + goto update_rmap; } } else { startoff = got.br_startoff + offset_shift_fsb; @@ -5676,9 +5616,10 @@ update_current_ext: (*current_ext)--; xfs_bmbt_set_startoff(gotp, startoff); *logflags |= XFS_ILOG_CORE; + adj_irec = got; if (!cur) { *logflags |= XFS_ILOG_DEXT; - return 0; + goto update_rmap; } error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, @@ -5688,8 +5629,18 @@ update_current_ext: XFS_WANT_CORRUPTED_RETURN(mp, i == 1); got.br_startoff = startoff; - return xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, - got.br_blockcount, got.br_state); + error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, + got.br_blockcount, got.br_state); + if (error) + return error; + +update_rmap: + /* update reverse mapping */ + error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, &adj_irec); + if (error) + return error; + adj_irec.br_startoff = startoff; + return xfs_rmap_map_extent(mp, dfops, ip, whichfork, &adj_irec); } /* @@ -5711,7 +5662,7 @@ xfs_bmap_shift_extents( int *done, xfs_fileoff_t stop_fsb, xfs_fsblock_t *firstblock, - struct xfs_bmap_free *flist, + struct xfs_defer_ops *dfops, enum shift_direction direction, int num_exts) { @@ -5756,7 +5707,7 @@ xfs_bmap_shift_extents( if (ifp->if_flags & XFS_IFBROOT) { cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstblock; - cur->bc_private.b.flist = flist; + cur->bc_private.b.dfops = dfops; cur->bc_private.b.flags = 0; } @@ -5817,7 +5768,7 @@ xfs_bmap_shift_extents( while (nexts++ < num_exts) { error = xfs_bmse_shift_one(ip, whichfork, offset_shift_fsb, ¤t_ext, gotp, cur, &logflags, - direction); + direction, dfops); if (error) goto del_cursor; /* @@ -5865,7 +5816,7 @@ xfs_bmap_split_extent_at( struct xfs_inode *ip, xfs_fileoff_t split_fsb, xfs_fsblock_t *firstfsb, - struct xfs_bmap_free *free_list) + struct xfs_defer_ops *dfops) { int whichfork = XFS_DATA_FORK; struct xfs_btree_cur *cur = NULL; @@ -5927,7 +5878,7 @@ xfs_bmap_split_extent_at( if (ifp->if_flags & XFS_IFBROOT) { cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstfsb; - cur->bc_private.b.flist = free_list; + cur->bc_private.b.dfops = dfops; cur->bc_private.b.flags = 0; error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, @@ -5980,7 +5931,7 @@ xfs_bmap_split_extent_at( int tmp_logflags; /* partial log flag return val */ ASSERT(cur == NULL); - error = xfs_bmap_extents_to_btree(tp, ip, firstfsb, free_list, + error = xfs_bmap_extents_to_btree(tp, ip, firstfsb, dfops, &cur, 0, &tmp_logflags, whichfork); logflags |= tmp_logflags; } @@ -6004,7 +5955,7 @@ xfs_bmap_split_extent( { struct xfs_mount *mp = ip->i_mount; struct xfs_trans *tp; - struct xfs_bmap_free free_list; + struct xfs_defer_ops dfops; xfs_fsblock_t firstfsb; int error; @@ -6016,21 +5967,21 @@ xfs_bmap_split_extent( xfs_ilock(ip, XFS_ILOCK_EXCL); xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); - xfs_bmap_init(&free_list, &firstfsb); + xfs_defer_init(&dfops, &firstfsb); error = xfs_bmap_split_extent_at(tp, ip, split_fsb, - &firstfsb, &free_list); + &firstfsb, &dfops); if (error) goto out; - error = xfs_bmap_finish(&tp, &free_list, NULL); + error = xfs_defer_finish(&tp, &dfops, NULL); if (error) goto out; return xfs_trans_commit(tp); out: - xfs_bmap_cancel(&free_list); + xfs_defer_cancel(&dfops); xfs_trans_cancel(tp); return error; } |
