| /* |
| * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #include "xfs.h" |
| #include "xfs_fs.h" |
| #include "xfs_types.h" |
| #include "xfs_bit.h" |
| #include "xfs_log.h" |
| #include "xfs_inum.h" |
| #include "xfs_trans.h" |
| #include "xfs_sb.h" |
| #include "xfs_ag.h" |
| #include "xfs_dir2.h" |
| #include "xfs_dmapi.h" |
| #include "xfs_mount.h" |
| #include "xfs_da_btree.h" |
| #include "xfs_bmap_btree.h" |
| #include "xfs_alloc_btree.h" |
| #include "xfs_dir2_sf.h" |
| #include "xfs_attr_sf.h" |
| #include "xfs_dinode.h" |
| #include "xfs_inode.h" |
| #include "xfs_inode_item.h" |
| #include "xfs_bmap.h" |
| #include "xfs_dir2_data.h" |
| #include "xfs_dir2_leaf.h" |
| #include "xfs_dir2_block.h" |
| #include "xfs_dir2_node.h" |
| #include "xfs_dir2_trace.h" |
| #include "xfs_error.h" |
| |
| |
| void |
| xfs_dir_mount( |
| xfs_mount_t *mp) |
| { |
| ASSERT(XFS_SB_VERSION_HASDIRV2(&mp->m_sb)); |
| ASSERT((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) <= |
| XFS_MAX_BLOCKSIZE); |
| mp->m_dirblksize = 1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog); |
| mp->m_dirblkfsbs = 1 << mp->m_sb.sb_dirblklog; |
| mp->m_dirdatablk = xfs_dir2_db_to_da(mp, XFS_DIR2_DATA_FIRSTDB(mp)); |
| mp->m_dirleafblk = xfs_dir2_db_to_da(mp, XFS_DIR2_LEAF_FIRSTDB(mp)); |
| mp->m_dirfreeblk = xfs_dir2_db_to_da(mp, XFS_DIR2_FREE_FIRSTDB(mp)); |
| mp->m_attr_node_ents = |
| (mp->m_sb.sb_blocksize - (uint)sizeof(xfs_da_node_hdr_t)) / |
| (uint)sizeof(xfs_da_node_entry_t); |
| mp->m_dir_node_ents = |
| (mp->m_dirblksize - (uint)sizeof(xfs_da_node_hdr_t)) / |
| (uint)sizeof(xfs_da_node_entry_t); |
| mp->m_dir_magicpct = (mp->m_dirblksize * 37) / 100; |
| } |
| |
| /* |
| * Return 1 if directory contains only "." and "..". |
| */ |
| int |
| xfs_dir_isempty( |
| xfs_inode_t *dp) |
| { |
| xfs_dir2_sf_t *sfp; |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| if (dp->i_d.di_size == 0) /* might happen during shutdown. */ |
| return 1; |
| if (dp->i_d.di_size > XFS_IFORK_DSIZE(dp)) |
| return 0; |
| sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; |
| return !sfp->hdr.count; |
| } |
| |
| /* |
| * Validate a given inode number. |
| */ |
| int |
| xfs_dir_ino_validate( |
| xfs_mount_t *mp, |
| xfs_ino_t ino) |
| { |
| xfs_agblock_t agblkno; |
| xfs_agino_t agino; |
| xfs_agnumber_t agno; |
| int ino_ok; |
| int ioff; |
| |
| agno = XFS_INO_TO_AGNO(mp, ino); |
| agblkno = XFS_INO_TO_AGBNO(mp, ino); |
| ioff = XFS_INO_TO_OFFSET(mp, ino); |
| agino = XFS_OFFBNO_TO_AGINO(mp, agblkno, ioff); |
| ino_ok = |
| agno < mp->m_sb.sb_agcount && |
| agblkno < mp->m_sb.sb_agblocks && |
| agblkno != 0 && |
| ioff < (1 << mp->m_sb.sb_inopblog) && |
| XFS_AGINO_TO_INO(mp, agno, agino) == ino; |
| if (unlikely(XFS_TEST_ERROR(!ino_ok, mp, XFS_ERRTAG_DIR_INO_VALIDATE, |
| XFS_RANDOM_DIR_INO_VALIDATE))) { |
| xfs_fs_cmn_err(CE_WARN, mp, "Invalid inode number 0x%Lx", |
| (unsigned long long) ino); |
| XFS_ERROR_REPORT("xfs_dir_ino_validate", XFS_ERRLEVEL_LOW, mp); |
| return XFS_ERROR(EFSCORRUPTED); |
| } |
| return 0; |
| } |
| |
| /* |
| * Initialize a directory with its "." and ".." entries. |
| */ |
| int |
| xfs_dir_init( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| xfs_inode_t *pdp) |
| { |
| xfs_da_args_t args; |
| int error; |
| |
| memset((char *)&args, 0, sizeof(args)); |
| args.dp = dp; |
| args.trans = tp; |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| if ((error = xfs_dir_ino_validate(tp->t_mountp, pdp->i_ino))) |
| return error; |
| return xfs_dir2_sf_create(&args, pdp->i_ino); |
| } |
| |
| /* |
| Enter a name in a directory. |
| */ |
| int |
| xfs_dir_createname( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| char *name, |
| int namelen, |
| xfs_ino_t inum, /* new entry inode number */ |
| xfs_fsblock_t *first, /* bmap's firstblock */ |
| xfs_bmap_free_t *flist, /* bmap's freeblock list */ |
| xfs_extlen_t total) /* bmap's total block count */ |
| { |
| xfs_da_args_t args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum))) |
| return rval; |
| XFS_STATS_INC(xs_dir_create); |
| |
| args.name = name; |
| args.namelen = namelen; |
| args.hashval = xfs_da_hashname(name, namelen); |
| args.inumber = inum; |
| args.dp = dp; |
| args.firstblock = first; |
| args.flist = flist; |
| args.total = total; |
| args.whichfork = XFS_DATA_FORK; |
| args.trans = tp; |
| args.justcheck = 0; |
| args.addname = args.oknoent = 1; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) |
| rval = xfs_dir2_sf_addname(&args); |
| else if ((rval = xfs_dir2_isblock(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_block_addname(&args); |
| else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_leaf_addname(&args); |
| else |
| rval = xfs_dir2_node_addname(&args); |
| return rval; |
| } |
| |
| /* |
| * Lookup a name in a directory, give back the inode number. |
| */ |
| int |
| xfs_dir_lookup( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| char *name, |
| int namelen, |
| xfs_ino_t *inum) /* out: inode number */ |
| { |
| xfs_da_args_t args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| XFS_STATS_INC(xs_dir_lookup); |
| |
| args.name = name; |
| args.namelen = namelen; |
| args.hashval = xfs_da_hashname(name, namelen); |
| args.inumber = 0; |
| args.dp = dp; |
| args.firstblock = NULL; |
| args.flist = NULL; |
| args.total = 0; |
| args.whichfork = XFS_DATA_FORK; |
| args.trans = tp; |
| args.justcheck = args.addname = 0; |
| args.oknoent = 1; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) |
| rval = xfs_dir2_sf_lookup(&args); |
| else if ((rval = xfs_dir2_isblock(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_block_lookup(&args); |
| else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_leaf_lookup(&args); |
| else |
| rval = xfs_dir2_node_lookup(&args); |
| if (rval == EEXIST) |
| rval = 0; |
| if (rval == 0) |
| *inum = args.inumber; |
| return rval; |
| } |
| |
| /* |
| * Remove an entry from a directory. |
| */ |
| int |
| xfs_dir_removename( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| char *name, |
| int namelen, |
| xfs_ino_t ino, |
| xfs_fsblock_t *first, /* bmap's firstblock */ |
| xfs_bmap_free_t *flist, /* bmap's freeblock list */ |
| xfs_extlen_t total) /* bmap's total block count */ |
| { |
| xfs_da_args_t args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| XFS_STATS_INC(xs_dir_remove); |
| |
| args.name = name; |
| args.namelen = namelen; |
| args.hashval = xfs_da_hashname(name, namelen); |
| args.inumber = ino; |
| args.dp = dp; |
| args.firstblock = first; |
| args.flist = flist; |
| args.total = total; |
| args.whichfork = XFS_DATA_FORK; |
| args.trans = tp; |
| args.justcheck = args.addname = args.oknoent = 0; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) |
| rval = xfs_dir2_sf_removename(&args); |
| else if ((rval = xfs_dir2_isblock(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_block_removename(&args); |
| else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_leaf_removename(&args); |
| else |
| rval = xfs_dir2_node_removename(&args); |
| return rval; |
| } |
| |
| /* |
| * Read a directory. |
| */ |
| int |
| xfs_readdir( |
| bhv_desc_t *dir_bdp, |
| void *dirent, |
| size_t bufsize, |
| xfs_off_t *offset, |
| filldir_t filldir) |
| { |
| xfs_inode_t *dp = XFS_BHVTOI(dir_bdp); |
| int rval; /* return value */ |
| int v; /* type-checking value */ |
| |
| vn_trace_entry(BHV_TO_VNODE(dir_bdp), __FUNCTION__, |
| (inst_t *)__return_address); |
| |
| if (XFS_FORCED_SHUTDOWN(dp->i_mount)) |
| return XFS_ERROR(EIO); |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| XFS_STATS_INC(xs_dir_getdents); |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) |
| rval = xfs_dir2_sf_getdents(dp, dirent, offset, filldir); |
| else if ((rval = xfs_dir2_isblock(NULL, dp, &v))) |
| ; |
| else if (v) |
| rval = xfs_dir2_block_getdents(dp, dirent, offset, filldir); |
| else |
| rval = xfs_dir2_leaf_getdents(dp, dirent, bufsize, offset, |
| filldir); |
| return rval; |
| } |
| |
| /* |
| * Replace the inode number of a directory entry. |
| */ |
| int |
| xfs_dir_replace( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| char *name, /* name of entry to replace */ |
| int namelen, |
| xfs_ino_t inum, /* new inode number */ |
| xfs_fsblock_t *first, /* bmap's firstblock */ |
| xfs_bmap_free_t *flist, /* bmap's freeblock list */ |
| xfs_extlen_t total) /* bmap's total block count */ |
| { |
| xfs_da_args_t args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| |
| if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum))) |
| return rval; |
| |
| args.name = name; |
| args.namelen = namelen; |
| args.hashval = xfs_da_hashname(name, namelen); |
| args.inumber = inum; |
| args.dp = dp; |
| args.firstblock = first; |
| args.flist = flist; |
| args.total = total; |
| args.whichfork = XFS_DATA_FORK; |
| args.trans = tp; |
| args.justcheck = args.addname = args.oknoent = 0; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) |
| rval = xfs_dir2_sf_replace(&args); |
| else if ((rval = xfs_dir2_isblock(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_block_replace(&args); |
| else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_leaf_replace(&args); |
| else |
| rval = xfs_dir2_node_replace(&args); |
| return rval; |
| } |
| |
| /* |
| * See if this entry can be added to the directory without allocating space. |
| */ |
| int |
| xfs_dir_canenter( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| char *name, /* name of entry to add */ |
| int namelen) |
| { |
| xfs_da_args_t args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); |
| |
| args.name = name; |
| args.namelen = namelen; |
| args.hashval = xfs_da_hashname(name, namelen); |
| args.inumber = 0; |
| args.dp = dp; |
| args.firstblock = NULL; |
| args.flist = NULL; |
| args.total = 0; |
| args.whichfork = XFS_DATA_FORK; |
| args.trans = tp; |
| args.justcheck = args.addname = args.oknoent = 1; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) |
| rval = xfs_dir2_sf_addname(&args); |
| else if ((rval = xfs_dir2_isblock(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_block_addname(&args); |
| else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) |
| return rval; |
| else if (v) |
| rval = xfs_dir2_leaf_addname(&args); |
| else |
| rval = xfs_dir2_node_addname(&args); |
| return rval; |
| } |
| |
| /* |
| * Utility routines. |
| */ |
| |
| /* |
| * Add a block to the directory. |
| * This routine is for data and free blocks, not leaf/node blocks |
| * which are handled by xfs_da_grow_inode. |
| */ |
| int |
| xfs_dir2_grow_inode( |
| xfs_da_args_t *args, |
| int space, /* v2 dir's space XFS_DIR2_xxx_SPACE */ |
| xfs_dir2_db_t *dbp) /* out: block number added */ |
| { |
| xfs_fileoff_t bno; /* directory offset of new block */ |
| int count; /* count of filesystem blocks */ |
| xfs_inode_t *dp; /* incore directory inode */ |
| int error; |
| int got; /* blocks actually mapped */ |
| int i; |
| xfs_bmbt_irec_t map; /* single structure for bmap */ |
| int mapi; /* mapping index */ |
| xfs_bmbt_irec_t *mapp; /* bmap mapping structure(s) */ |
| xfs_mount_t *mp; |
| int nmap; /* number of bmap entries */ |
| xfs_trans_t *tp; |
| |
| xfs_dir2_trace_args_s("grow_inode", args, space); |
| dp = args->dp; |
| tp = args->trans; |
| mp = dp->i_mount; |
| /* |
| * Set lowest possible block in the space requested. |
| */ |
| bno = XFS_B_TO_FSBT(mp, space * XFS_DIR2_SPACE_SIZE); |
| count = mp->m_dirblkfsbs; |
| /* |
| * Find the first hole for our block. |
| */ |
| if ((error = xfs_bmap_first_unused(tp, dp, count, &bno, XFS_DATA_FORK))) |
| return error; |
| nmap = 1; |
| ASSERT(args->firstblock != NULL); |
| /* |
| * Try mapping the new block contiguously (one extent). |
| */ |
| if ((error = xfs_bmapi(tp, dp, bno, count, |
| XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG, |
| args->firstblock, args->total, &map, &nmap, |
| args->flist, NULL))) |
| return error; |
| ASSERT(nmap <= 1); |
| if (nmap == 1) { |
| mapp = ↦ |
| mapi = 1; |
| } |
| /* |
| * Didn't work and this is a multiple-fsb directory block. |
| * Try again with contiguous flag turned on. |
| */ |
| else if (nmap == 0 && count > 1) { |
| xfs_fileoff_t b; /* current file offset */ |
| |
| /* |
| * Space for maximum number of mappings. |
| */ |
| mapp = kmem_alloc(sizeof(*mapp) * count, KM_SLEEP); |
| /* |
| * Iterate until we get to the end of our block. |
| */ |
| for (b = bno, mapi = 0; b < bno + count; ) { |
| int c; /* current fsb count */ |
| |
| /* |
| * Can't map more than MAX_NMAP at once. |
| */ |
| nmap = MIN(XFS_BMAP_MAX_NMAP, count); |
| c = (int)(bno + count - b); |
| if ((error = xfs_bmapi(tp, dp, b, c, |
| XFS_BMAPI_WRITE|XFS_BMAPI_METADATA, |
| args->firstblock, args->total, |
| &mapp[mapi], &nmap, args->flist, |
| NULL))) { |
| kmem_free(mapp, sizeof(*mapp) * count); |
| return error; |
| } |
| if (nmap < 1) |
| break; |
| /* |
| * Add this bunch into our table, go to the next offset. |
| */ |
| mapi += nmap; |
| b = mapp[mapi - 1].br_startoff + |
| mapp[mapi - 1].br_blockcount; |
| } |
| } |
| /* |
| * Didn't work. |
| */ |
| else { |
| mapi = 0; |
| mapp = NULL; |
| } |
| /* |
| * See how many fsb's we got. |
| */ |
| for (i = 0, got = 0; i < mapi; i++) |
| got += mapp[i].br_blockcount; |
| /* |
| * Didn't get enough fsb's, or the first/last block's are wrong. |
| */ |
| if (got != count || mapp[0].br_startoff != bno || |
| mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount != |
| bno + count) { |
| if (mapp != &map) |
| kmem_free(mapp, sizeof(*mapp) * count); |
| return XFS_ERROR(ENOSPC); |
| } |
| /* |
| * Done with the temporary mapping table. |
| */ |
| if (mapp != &map) |
| kmem_free(mapp, sizeof(*mapp) * count); |
| *dbp = xfs_dir2_da_to_db(mp, (xfs_dablk_t)bno); |
| /* |
| * Update file's size if this is the data space and it grew. |
| */ |
| if (space == XFS_DIR2_DATA_SPACE) { |
| xfs_fsize_t size; /* directory file (data) size */ |
| |
| size = XFS_FSB_TO_B(mp, bno + count); |
| if (size > dp->i_d.di_size) { |
| dp->i_d.di_size = size; |
| xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * See if the directory is a single-block form directory. |
| */ |
| int |
| xfs_dir2_isblock( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| int *vp) /* out: 1 is block, 0 is not block */ |
| { |
| xfs_fileoff_t last; /* last file offset */ |
| xfs_mount_t *mp; |
| int rval; |
| |
| mp = dp->i_mount; |
| if ((rval = xfs_bmap_last_offset(tp, dp, &last, XFS_DATA_FORK))) |
| return rval; |
| rval = XFS_FSB_TO_B(mp, last) == mp->m_dirblksize; |
| ASSERT(rval == 0 || dp->i_d.di_size == mp->m_dirblksize); |
| *vp = rval; |
| return 0; |
| } |
| |
| /* |
| * See if the directory is a single-leaf form directory. |
| */ |
| int |
| xfs_dir2_isleaf( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| int *vp) /* out: 1 is leaf, 0 is not leaf */ |
| { |
| xfs_fileoff_t last; /* last file offset */ |
| xfs_mount_t *mp; |
| int rval; |
| |
| mp = dp->i_mount; |
| if ((rval = xfs_bmap_last_offset(tp, dp, &last, XFS_DATA_FORK))) |
| return rval; |
| *vp = last == mp->m_dirleafblk + (1 << mp->m_sb.sb_dirblklog); |
| return 0; |
| } |
| |
| /* |
| * Remove the given block from the directory. |
| * This routine is used for data and free blocks, leaf/node are done |
| * by xfs_da_shrink_inode. |
| */ |
| int |
| xfs_dir2_shrink_inode( |
| xfs_da_args_t *args, |
| xfs_dir2_db_t db, |
| xfs_dabuf_t *bp) |
| { |
| xfs_fileoff_t bno; /* directory file offset */ |
| xfs_dablk_t da; /* directory file offset */ |
| int done; /* bunmap is finished */ |
| xfs_inode_t *dp; |
| int error; |
| xfs_mount_t *mp; |
| xfs_trans_t *tp; |
| |
| xfs_dir2_trace_args_db("shrink_inode", args, db, bp); |
| dp = args->dp; |
| mp = dp->i_mount; |
| tp = args->trans; |
| da = xfs_dir2_db_to_da(mp, db); |
| /* |
| * Unmap the fsblock(s). |
| */ |
| if ((error = xfs_bunmapi(tp, dp, da, mp->m_dirblkfsbs, |
| XFS_BMAPI_METADATA, 0, args->firstblock, args->flist, |
| NULL, &done))) { |
| /* |
| * ENOSPC actually can happen if we're in a removename with |
| * no space reservation, and the resulting block removal |
| * would cause a bmap btree split or conversion from extents |
| * to btree. This can only happen for un-fragmented |
| * directory blocks, since you need to be punching out |
| * the middle of an extent. |
| * In this case we need to leave the block in the file, |
| * and not binval it. |
| * So the block has to be in a consistent empty state |
| * and appropriately logged. |
| * We don't free up the buffer, the caller can tell it |
| * hasn't happened since it got an error back. |
| */ |
| return error; |
| } |
| ASSERT(done); |
| /* |
| * Invalidate the buffer from the transaction. |
| */ |
| xfs_da_binval(tp, bp); |
| /* |
| * If it's not a data block, we're done. |
| */ |
| if (db >= XFS_DIR2_LEAF_FIRSTDB(mp)) |
| return 0; |
| /* |
| * If the block isn't the last one in the directory, we're done. |
| */ |
| if (dp->i_d.di_size > xfs_dir2_db_off_to_byte(mp, db + 1, 0)) |
| return 0; |
| bno = da; |
| if ((error = xfs_bmap_last_before(tp, dp, &bno, XFS_DATA_FORK))) { |
| /* |
| * This can't really happen unless there's kernel corruption. |
| */ |
| return error; |
| } |
| if (db == mp->m_dirdatablk) |
| ASSERT(bno == 0); |
| else |
| ASSERT(bno > 0); |
| /* |
| * Set the size to the new last block. |
| */ |
| dp->i_d.di_size = XFS_FSB_TO_B(mp, bno); |
| xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); |
| return 0; |
| } |