| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| */ |
| #include "xfs.h" |
| #include "xfs_fs.h" |
| #include "xfs_format.h" |
| #include "xfs_log_format.h" |
| #include "xfs_trans_resv.h" |
| #include "xfs_mount.h" |
| #include "xfs_defer.h" |
| #include "xfs_da_format.h" |
| #include "xfs_da_btree.h" |
| #include "xfs_inode.h" |
| #include "xfs_trans.h" |
| #include "xfs_inode_item.h" |
| #include "xfs_bmap.h" |
| #include "xfs_dir2.h" |
| #include "xfs_dir2_priv.h" |
| #include "xfs_ialloc.h" |
| #include "xfs_errortag.h" |
| #include "xfs_error.h" |
| #include "xfs_trace.h" |
| |
| struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; |
| |
| /* |
| * Convert inode mode to directory entry filetype |
| */ |
| unsigned char |
| xfs_mode_to_ftype( |
| int mode) |
| { |
| switch (mode & S_IFMT) { |
| case S_IFREG: |
| return XFS_DIR3_FT_REG_FILE; |
| case S_IFDIR: |
| return XFS_DIR3_FT_DIR; |
| case S_IFCHR: |
| return XFS_DIR3_FT_CHRDEV; |
| case S_IFBLK: |
| return XFS_DIR3_FT_BLKDEV; |
| case S_IFIFO: |
| return XFS_DIR3_FT_FIFO; |
| case S_IFSOCK: |
| return XFS_DIR3_FT_SOCK; |
| case S_IFLNK: |
| return XFS_DIR3_FT_SYMLINK; |
| default: |
| return XFS_DIR3_FT_UNKNOWN; |
| } |
| } |
| |
| /* |
| * ASCII case-insensitive (ie. A-Z) support for directories that was |
| * used in IRIX. |
| */ |
| STATIC xfs_dahash_t |
| xfs_ascii_ci_hashname( |
| struct xfs_name *name) |
| { |
| xfs_dahash_t hash; |
| int i; |
| |
| for (i = 0, hash = 0; i < name->len; i++) |
| hash = tolower(name->name[i]) ^ rol32(hash, 7); |
| |
| return hash; |
| } |
| |
| STATIC enum xfs_dacmp |
| xfs_ascii_ci_compname( |
| struct xfs_da_args *args, |
| const unsigned char *name, |
| int len) |
| { |
| enum xfs_dacmp result; |
| int i; |
| |
| if (args->namelen != len) |
| return XFS_CMP_DIFFERENT; |
| |
| result = XFS_CMP_EXACT; |
| for (i = 0; i < len; i++) { |
| if (args->name[i] == name[i]) |
| continue; |
| if (tolower(args->name[i]) != tolower(name[i])) |
| return XFS_CMP_DIFFERENT; |
| result = XFS_CMP_CASE; |
| } |
| |
| return result; |
| } |
| |
| static const struct xfs_nameops xfs_ascii_ci_nameops = { |
| .hashname = xfs_ascii_ci_hashname, |
| .compname = xfs_ascii_ci_compname, |
| }; |
| |
| int |
| xfs_da_mount( |
| struct xfs_mount *mp) |
| { |
| struct xfs_da_geometry *dageo; |
| int nodehdr_size; |
| |
| |
| ASSERT(mp->m_sb.sb_versionnum & XFS_SB_VERSION_DIRV2BIT); |
| ASSERT(xfs_dir2_dirblock_bytes(&mp->m_sb) <= XFS_MAX_BLOCKSIZE); |
| |
| mp->m_dir_inode_ops = xfs_dir_get_ops(mp, NULL); |
| mp->m_nondir_inode_ops = xfs_nondir_get_ops(mp, NULL); |
| |
| nodehdr_size = mp->m_dir_inode_ops->node_hdr_size; |
| mp->m_dir_geo = kmem_zalloc(sizeof(struct xfs_da_geometry), |
| KM_SLEEP | KM_MAYFAIL); |
| mp->m_attr_geo = kmem_zalloc(sizeof(struct xfs_da_geometry), |
| KM_SLEEP | KM_MAYFAIL); |
| if (!mp->m_dir_geo || !mp->m_attr_geo) { |
| kmem_free(mp->m_dir_geo); |
| kmem_free(mp->m_attr_geo); |
| return -ENOMEM; |
| } |
| |
| /* set up directory geometry */ |
| dageo = mp->m_dir_geo; |
| dageo->blklog = mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog; |
| dageo->fsblog = mp->m_sb.sb_blocklog; |
| dageo->blksize = xfs_dir2_dirblock_bytes(&mp->m_sb); |
| dageo->fsbcount = 1 << mp->m_sb.sb_dirblklog; |
| |
| /* |
| * Now we've set up the block conversion variables, we can calculate the |
| * segment block constants using the geometry structure. |
| */ |
| dageo->datablk = xfs_dir2_byte_to_da(dageo, XFS_DIR2_DATA_OFFSET); |
| dageo->leafblk = xfs_dir2_byte_to_da(dageo, XFS_DIR2_LEAF_OFFSET); |
| dageo->freeblk = xfs_dir2_byte_to_da(dageo, XFS_DIR2_FREE_OFFSET); |
| dageo->node_ents = (dageo->blksize - nodehdr_size) / |
| (uint)sizeof(xfs_da_node_entry_t); |
| dageo->magicpct = (dageo->blksize * 37) / 100; |
| |
| /* set up attribute geometry - single fsb only */ |
| dageo = mp->m_attr_geo; |
| dageo->blklog = mp->m_sb.sb_blocklog; |
| dageo->fsblog = mp->m_sb.sb_blocklog; |
| dageo->blksize = 1 << dageo->blklog; |
| dageo->fsbcount = 1; |
| dageo->node_ents = (dageo->blksize - nodehdr_size) / |
| (uint)sizeof(xfs_da_node_entry_t); |
| dageo->magicpct = (dageo->blksize * 37) / 100; |
| |
| if (xfs_sb_version_hasasciici(&mp->m_sb)) |
| mp->m_dirnameops = &xfs_ascii_ci_nameops; |
| else |
| mp->m_dirnameops = &xfs_default_nameops; |
| |
| return 0; |
| } |
| |
| void |
| xfs_da_unmount( |
| struct xfs_mount *mp) |
| { |
| kmem_free(mp->m_dir_geo); |
| kmem_free(mp->m_attr_geo); |
| } |
| |
| /* |
| * Return 1 if directory contains only "." and "..". |
| */ |
| int |
| xfs_dir_isempty( |
| xfs_inode_t *dp) |
| { |
| xfs_dir2_sf_hdr_t *sfp; |
| |
| ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); |
| 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_hdr_t *)dp->i_df.if_u1.if_data; |
| return !sfp->count; |
| } |
| |
| /* |
| * Validate a given inode number. |
| */ |
| int |
| xfs_dir_ino_validate( |
| xfs_mount_t *mp, |
| xfs_ino_t ino) |
| { |
| bool ino_ok = xfs_verify_dir_ino(mp, ino); |
| |
| if (unlikely(XFS_TEST_ERROR(!ino_ok, mp, XFS_ERRTAG_DIR_INO_VALIDATE))) { |
| xfs_warn(mp, "Invalid inode number 0x%Lx", |
| (unsigned long long) ino); |
| XFS_ERROR_REPORT("xfs_dir_ino_validate", XFS_ERRLEVEL_LOW, mp); |
| return -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) |
| { |
| struct xfs_da_args *args; |
| int error; |
| |
| ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); |
| error = xfs_dir_ino_validate(tp->t_mountp, pdp->i_ino); |
| if (error) |
| return error; |
| |
| args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); |
| if (!args) |
| return -ENOMEM; |
| |
| args->geo = dp->i_mount->m_dir_geo; |
| args->dp = dp; |
| args->trans = tp; |
| error = xfs_dir2_sf_create(args, pdp->i_ino); |
| kmem_free(args); |
| return error; |
| } |
| |
| /* |
| * Enter a name in a directory, or check for available space. |
| * If inum is 0, only the available space test is performed. |
| */ |
| int |
| xfs_dir_createname( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| struct xfs_name *name, |
| xfs_ino_t inum, /* new entry inode number */ |
| xfs_fsblock_t *first, /* bmap's firstblock */ |
| struct xfs_defer_ops *dfops, /* bmap's freeblock list */ |
| xfs_extlen_t total) /* bmap's total block count */ |
| { |
| struct xfs_da_args *args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); |
| if (inum) { |
| rval = xfs_dir_ino_validate(tp->t_mountp, inum); |
| if (rval) |
| return rval; |
| XFS_STATS_INC(dp->i_mount, xs_dir_create); |
| } |
| |
| args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); |
| if (!args) |
| return -ENOMEM; |
| |
| args->geo = dp->i_mount->m_dir_geo; |
| args->name = name->name; |
| args->namelen = name->len; |
| args->filetype = name->type; |
| args->hashval = dp->i_mount->m_dirnameops->hashname(name); |
| args->inumber = inum; |
| args->dp = dp; |
| args->firstblock = first; |
| args->dfops = dfops; |
| args->total = total; |
| args->whichfork = XFS_DATA_FORK; |
| args->trans = tp; |
| args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; |
| if (!inum) |
| args->op_flags |= XFS_DA_OP_JUSTCHECK; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { |
| rval = xfs_dir2_sf_addname(args); |
| goto out_free; |
| } |
| |
| rval = xfs_dir2_isblock(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) { |
| rval = xfs_dir2_block_addname(args); |
| goto out_free; |
| } |
| |
| rval = xfs_dir2_isleaf(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) |
| rval = xfs_dir2_leaf_addname(args); |
| else |
| rval = xfs_dir2_node_addname(args); |
| |
| out_free: |
| kmem_free(args); |
| return rval; |
| } |
| |
| /* |
| * If doing a CI lookup and case-insensitive match, dup actual name into |
| * args.value. Return EEXIST for success (ie. name found) or an error. |
| */ |
| int |
| xfs_dir_cilookup_result( |
| struct xfs_da_args *args, |
| const unsigned char *name, |
| int len) |
| { |
| if (args->cmpresult == XFS_CMP_DIFFERENT) |
| return -ENOENT; |
| if (args->cmpresult != XFS_CMP_CASE || |
| !(args->op_flags & XFS_DA_OP_CILOOKUP)) |
| return -EEXIST; |
| |
| args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); |
| if (!args->value) |
| return -ENOMEM; |
| |
| memcpy(args->value, name, len); |
| args->valuelen = len; |
| return -EEXIST; |
| } |
| |
| /* |
| * Lookup a name in a directory, give back the inode number. |
| * If ci_name is not NULL, returns the actual name in ci_name if it differs |
| * to name, or ci_name->name is set to NULL for an exact match. |
| */ |
| |
| int |
| xfs_dir_lookup( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| struct xfs_name *name, |
| xfs_ino_t *inum, /* out: inode number */ |
| struct xfs_name *ci_name) /* out: actual name if CI match */ |
| { |
| struct xfs_da_args *args; |
| int rval; |
| int v; /* type-checking value */ |
| int lock_mode; |
| |
| ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); |
| XFS_STATS_INC(dp->i_mount, xs_dir_lookup); |
| |
| /* |
| * We need to use KM_NOFS here so that lockdep will not throw false |
| * positive deadlock warnings on a non-transactional lookup path. It is |
| * safe to recurse into inode recalim in that case, but lockdep can't |
| * easily be taught about it. Hence KM_NOFS avoids having to add more |
| * lockdep Doing this avoids having to add a bunch of lockdep class |
| * annotations into the reclaim path for the ilock. |
| */ |
| args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); |
| args->geo = dp->i_mount->m_dir_geo; |
| args->name = name->name; |
| args->namelen = name->len; |
| args->filetype = name->type; |
| args->hashval = dp->i_mount->m_dirnameops->hashname(name); |
| args->dp = dp; |
| args->whichfork = XFS_DATA_FORK; |
| args->trans = tp; |
| args->op_flags = XFS_DA_OP_OKNOENT; |
| if (ci_name) |
| args->op_flags |= XFS_DA_OP_CILOOKUP; |
| |
| lock_mode = xfs_ilock_data_map_shared(dp); |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { |
| rval = xfs_dir2_sf_lookup(args); |
| goto out_check_rval; |
| } |
| |
| rval = xfs_dir2_isblock(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) { |
| rval = xfs_dir2_block_lookup(args); |
| goto out_check_rval; |
| } |
| |
| rval = xfs_dir2_isleaf(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) |
| rval = xfs_dir2_leaf_lookup(args); |
| else |
| rval = xfs_dir2_node_lookup(args); |
| |
| out_check_rval: |
| if (rval == -EEXIST) |
| rval = 0; |
| if (!rval) { |
| *inum = args->inumber; |
| if (ci_name) { |
| ci_name->name = args->value; |
| ci_name->len = args->valuelen; |
| } |
| } |
| out_free: |
| xfs_iunlock(dp, lock_mode); |
| kmem_free(args); |
| return rval; |
| } |
| |
| /* |
| * Remove an entry from a directory. |
| */ |
| int |
| xfs_dir_removename( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| struct xfs_name *name, |
| xfs_ino_t ino, |
| xfs_fsblock_t *first, /* bmap's firstblock */ |
| struct xfs_defer_ops *dfops, /* bmap's freeblock list */ |
| xfs_extlen_t total) /* bmap's total block count */ |
| { |
| struct xfs_da_args *args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); |
| XFS_STATS_INC(dp->i_mount, xs_dir_remove); |
| |
| args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); |
| if (!args) |
| return -ENOMEM; |
| |
| args->geo = dp->i_mount->m_dir_geo; |
| args->name = name->name; |
| args->namelen = name->len; |
| args->filetype = name->type; |
| args->hashval = dp->i_mount->m_dirnameops->hashname(name); |
| args->inumber = ino; |
| args->dp = dp; |
| args->firstblock = first; |
| args->dfops = dfops; |
| args->total = total; |
| args->whichfork = XFS_DATA_FORK; |
| args->trans = tp; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { |
| rval = xfs_dir2_sf_removename(args); |
| goto out_free; |
| } |
| |
| rval = xfs_dir2_isblock(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) { |
| rval = xfs_dir2_block_removename(args); |
| goto out_free; |
| } |
| |
| rval = xfs_dir2_isleaf(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) |
| rval = xfs_dir2_leaf_removename(args); |
| else |
| rval = xfs_dir2_node_removename(args); |
| out_free: |
| kmem_free(args); |
| return rval; |
| } |
| |
| /* |
| * Replace the inode number of a directory entry. |
| */ |
| int |
| xfs_dir_replace( |
| xfs_trans_t *tp, |
| xfs_inode_t *dp, |
| struct xfs_name *name, /* name of entry to replace */ |
| xfs_ino_t inum, /* new inode number */ |
| xfs_fsblock_t *first, /* bmap's firstblock */ |
| struct xfs_defer_ops *dfops, /* bmap's freeblock list */ |
| xfs_extlen_t total) /* bmap's total block count */ |
| { |
| struct xfs_da_args *args; |
| int rval; |
| int v; /* type-checking value */ |
| |
| ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); |
| |
| rval = xfs_dir_ino_validate(tp->t_mountp, inum); |
| if (rval) |
| return rval; |
| |
| args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); |
| if (!args) |
| return -ENOMEM; |
| |
| args->geo = dp->i_mount->m_dir_geo; |
| args->name = name->name; |
| args->namelen = name->len; |
| args->filetype = name->type; |
| args->hashval = dp->i_mount->m_dirnameops->hashname(name); |
| args->inumber = inum; |
| args->dp = dp; |
| args->firstblock = first; |
| args->dfops = dfops; |
| args->total = total; |
| args->whichfork = XFS_DATA_FORK; |
| args->trans = tp; |
| |
| if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { |
| rval = xfs_dir2_sf_replace(args); |
| goto out_free; |
| } |
| |
| rval = xfs_dir2_isblock(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) { |
| rval = xfs_dir2_block_replace(args); |
| goto out_free; |
| } |
| |
| rval = xfs_dir2_isleaf(args, &v); |
| if (rval) |
| goto out_free; |
| if (v) |
| rval = xfs_dir2_leaf_replace(args); |
| else |
| rval = xfs_dir2_node_replace(args); |
| out_free: |
| kmem_free(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, |
| struct xfs_name *name) /* name of entry to add */ |
| { |
| return xfs_dir_createname(tp, dp, name, 0, NULL, NULL, 0); |
| } |
| |
| /* |
| * 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( |
| struct xfs_da_args *args, |
| int space, /* v2 dir's space XFS_DIR2_xxx_SPACE */ |
| xfs_dir2_db_t *dbp) /* out: block number added */ |
| { |
| struct xfs_inode *dp = args->dp; |
| struct xfs_mount *mp = dp->i_mount; |
| xfs_fileoff_t bno; /* directory offset of new block */ |
| int count; /* count of filesystem blocks */ |
| int error; |
| |
| trace_xfs_dir2_grow_inode(args, space); |
| |
| /* |
| * Set lowest possible block in the space requested. |
| */ |
| bno = XFS_B_TO_FSBT(mp, space * XFS_DIR2_SPACE_SIZE); |
| count = args->geo->fsbcount; |
| |
| error = xfs_da_grow_inode_int(args, &bno, count); |
| if (error) |
| return error; |
| |
| *dbp = xfs_dir2_da_to_db(args->geo, (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(args->trans, dp, XFS_ILOG_CORE); |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * See if the directory is a single-block form directory. |
| */ |
| int |
| xfs_dir2_isblock( |
| struct xfs_da_args *args, |
| int *vp) /* out: 1 is block, 0 is not block */ |
| { |
| xfs_fileoff_t last; /* last file offset */ |
| int rval; |
| |
| if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK))) |
| return rval; |
| rval = XFS_FSB_TO_B(args->dp->i_mount, last) == args->geo->blksize; |
| if (rval != 0 && args->dp->i_d.di_size != args->geo->blksize) |
| return -EFSCORRUPTED; |
| *vp = rval; |
| return 0; |
| } |
| |
| /* |
| * See if the directory is a single-leaf form directory. |
| */ |
| int |
| xfs_dir2_isleaf( |
| struct xfs_da_args *args, |
| int *vp) /* out: 1 is block, 0 is not block */ |
| { |
| xfs_fileoff_t last; /* last file offset */ |
| int rval; |
| |
| if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK))) |
| return rval; |
| *vp = last == args->geo->leafblk + args->geo->fsbcount; |
| 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, |
| struct xfs_buf *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; |
| |
| trace_xfs_dir2_shrink_inode(args, db); |
| |
| dp = args->dp; |
| mp = dp->i_mount; |
| tp = args->trans; |
| da = xfs_dir2_db_to_da(args->geo, db); |
| |
| /* Unmap the fsblock(s). */ |
| error = xfs_bunmapi(tp, dp, da, args->geo->fsbcount, 0, 0, |
| args->firstblock, args->dfops, &done); |
| if (error) { |
| /* |
| * 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_trans_binval(tp, bp); |
| /* |
| * If it's not a data block, we're done. |
| */ |
| if (db >= xfs_dir2_byte_to_db(args->geo, XFS_DIR2_LEAF_OFFSET)) |
| 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(args->geo, 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 == args->geo->datablk) |
| 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; |
| } |