Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "xfs.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 19 | #include "xfs_fs.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 20 | #include "xfs_format.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 21 | #include "xfs_log_format.h" |
| 22 | #include "xfs_trans_resv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include "xfs_sb.h" |
David Chinner | da353b0 | 2007-08-28 14:00:13 +1000 | [diff] [blame] | 24 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include "xfs_mount.h" |
Dave Chinner | 5706278 | 2013-10-15 09:17:51 +1100 | [diff] [blame] | 26 | #include "xfs_da_format.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 27 | #include "xfs_da_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include "xfs_inode.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 29 | #include "xfs_trans.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 30 | #include "xfs_inode_item.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include "xfs_error.h" |
Dave Chinner | 2b9ab5a | 2013-08-12 20:49:37 +1000 | [diff] [blame] | 32 | #include "xfs_dir2.h" |
Christoph Hellwig | 5792664 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 33 | #include "xfs_dir2_priv.h" |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 34 | #include "xfs_trace.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 35 | #include "xfs_dinode.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
| 37 | /* |
| 38 | * Prototypes for internal functions. |
| 39 | */ |
| 40 | static void xfs_dir2_sf_addname_easy(xfs_da_args_t *args, |
| 41 | xfs_dir2_sf_entry_t *sfep, |
| 42 | xfs_dir2_data_aoff_t offset, |
| 43 | int new_isize); |
| 44 | static void xfs_dir2_sf_addname_hard(xfs_da_args_t *args, int objchange, |
| 45 | int new_isize); |
| 46 | static int xfs_dir2_sf_addname_pick(xfs_da_args_t *args, int objchange, |
| 47 | xfs_dir2_sf_entry_t **sfepp, |
| 48 | xfs_dir2_data_aoff_t *offsetp); |
| 49 | #ifdef DEBUG |
| 50 | static void xfs_dir2_sf_check(xfs_da_args_t *args); |
| 51 | #else |
| 52 | #define xfs_dir2_sf_check(args) |
| 53 | #endif /* DEBUG */ |
| 54 | #if XFS_BIG_INUMS |
| 55 | static void xfs_dir2_sf_toino4(xfs_da_args_t *args); |
| 56 | static void xfs_dir2_sf_toino8(xfs_da_args_t *args); |
| 57 | #endif /* XFS_BIG_INUMS */ |
| 58 | |
Christoph Hellwig | 8bc3878 | 2011-07-08 14:35:03 +0200 | [diff] [blame] | 59 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | * Given a block directory (dp/block), calculate its size as a shortform (sf) |
| 61 | * directory and a header for the sf directory, if it will fit it the |
| 62 | * space currently present in the inode. If it won't fit, the output |
| 63 | * size is too big (but not accurate). |
| 64 | */ |
| 65 | int /* size for sf form */ |
| 66 | xfs_dir2_block_sfsize( |
| 67 | xfs_inode_t *dp, /* incore inode pointer */ |
Christoph Hellwig | 4f6ae1a | 2011-07-08 14:35:27 +0200 | [diff] [blame] | 68 | xfs_dir2_data_hdr_t *hdr, /* block directory data */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | xfs_dir2_sf_hdr_t *sfhp) /* output: header for sf form */ |
| 70 | { |
| 71 | xfs_dir2_dataptr_t addr; /* data entry address */ |
| 72 | xfs_dir2_leaf_entry_t *blp; /* leaf area of the block */ |
| 73 | xfs_dir2_block_tail_t *btp; /* tail area of the block */ |
| 74 | int count; /* shortform entry count */ |
| 75 | xfs_dir2_data_entry_t *dep; /* data entry in the block */ |
| 76 | int i; /* block entry index */ |
| 77 | int i8count; /* count of big-inode entries */ |
| 78 | int isdot; /* entry is "." */ |
| 79 | int isdotdot; /* entry is ".." */ |
| 80 | xfs_mount_t *mp; /* mount structure pointer */ |
| 81 | int namelen; /* total name bytes */ |
Christoph Hellwig | 5bde1ba9 | 2005-11-02 15:06:18 +1100 | [diff] [blame] | 82 | xfs_ino_t parent = 0; /* parent inode number */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | int size=0; /* total computed size */ |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 84 | int has_ftype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
| 86 | mp = dp->i_mount; |
| 87 | |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 88 | /* |
| 89 | * if there is a filetype field, add the extra byte to the namelen |
| 90 | * for each entry that we see. |
| 91 | */ |
| 92 | has_ftype = xfs_sb_version_hasftype(&mp->m_sb) ? 1 : 0; |
| 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | count = i8count = namelen = 0; |
Christoph Hellwig | 4f6ae1a | 2011-07-08 14:35:27 +0200 | [diff] [blame] | 95 | btp = xfs_dir2_block_tail_p(mp, hdr); |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 96 | blp = xfs_dir2_block_leaf_p(btp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
| 98 | /* |
| 99 | * Iterate over the block's data entries by using the leaf pointers. |
| 100 | */ |
Nathan Scott | e922fff | 2006-03-17 17:27:56 +1100 | [diff] [blame] | 101 | for (i = 0; i < be32_to_cpu(btp->count); i++) { |
Nathan Scott | 3c1f9c1 | 2006-03-17 17:28:18 +1100 | [diff] [blame] | 102 | if ((addr = be32_to_cpu(blp[i].address)) == XFS_DIR2_NULL_DATAPTR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | continue; |
| 104 | /* |
| 105 | * Calculate the pointer to the entry at hand. |
| 106 | */ |
| 107 | dep = (xfs_dir2_data_entry_t *) |
Christoph Hellwig | 4f6ae1a | 2011-07-08 14:35:27 +0200 | [diff] [blame] | 108 | ((char *)hdr + xfs_dir2_dataptr_to_off(mp, addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | /* |
| 110 | * Detect . and .., so we can special-case them. |
| 111 | * . is not included in sf directories. |
| 112 | * .. is included by just the parent inode number. |
| 113 | */ |
| 114 | isdot = dep->namelen == 1 && dep->name[0] == '.'; |
| 115 | isdotdot = |
| 116 | dep->namelen == 2 && |
| 117 | dep->name[0] == '.' && dep->name[1] == '.'; |
| 118 | #if XFS_BIG_INUMS |
| 119 | if (!isdot) |
Christoph Hellwig | ff9901c | 2006-06-09 14:48:37 +1000 | [diff] [blame] | 120 | i8count += be64_to_cpu(dep->inumber) > XFS_DIR2_MAX_SHORT_INUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | #endif |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 122 | /* take into account the file type field */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | if (!isdot && !isdotdot) { |
| 124 | count++; |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 125 | namelen += dep->namelen + has_ftype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | } else if (isdotdot) |
Christoph Hellwig | ff9901c | 2006-06-09 14:48:37 +1000 | [diff] [blame] | 127 | parent = be64_to_cpu(dep->inumber); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | /* |
| 129 | * Calculate the new size, see if we should give up yet. |
| 130 | */ |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 131 | size = xfs_dir2_sf_hdr_size(i8count) + /* header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | count + /* namelen */ |
| 133 | count * (uint)sizeof(xfs_dir2_sf_off_t) + /* offset */ |
| 134 | namelen + /* name */ |
| 135 | (i8count ? /* inumber */ |
| 136 | (uint)sizeof(xfs_dir2_ino8_t) * count : |
| 137 | (uint)sizeof(xfs_dir2_ino4_t) * count); |
| 138 | if (size > XFS_IFORK_DSIZE(dp)) |
| 139 | return size; /* size value is a failure */ |
| 140 | } |
| 141 | /* |
| 142 | * Create the output header, if it worked. |
| 143 | */ |
| 144 | sfhp->count = count; |
| 145 | sfhp->i8count = i8count; |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 146 | dp->d_ops->sf_put_parent_ino(sfhp, parent); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | return size; |
| 148 | } |
| 149 | |
| 150 | /* |
| 151 | * Convert a block format directory to shortform. |
| 152 | * Caller has already checked that it will fit, and built us a header. |
| 153 | */ |
| 154 | int /* error */ |
| 155 | xfs_dir2_block_to_sf( |
| 156 | xfs_da_args_t *args, /* operation arguments */ |
Dave Chinner | 1d9025e | 2012-06-22 18:50:14 +1000 | [diff] [blame] | 157 | struct xfs_buf *bp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | int size, /* shortform directory size */ |
| 159 | xfs_dir2_sf_hdr_t *sfhp) /* shortform directory hdr */ |
| 160 | { |
Christoph Hellwig | a64b041 | 2011-07-08 14:35:32 +0200 | [diff] [blame] | 161 | xfs_dir2_data_hdr_t *hdr; /* block header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | xfs_dir2_block_tail_t *btp; /* block tail pointer */ |
| 163 | xfs_dir2_data_entry_t *dep; /* data entry pointer */ |
| 164 | xfs_inode_t *dp; /* incore directory inode */ |
| 165 | xfs_dir2_data_unused_t *dup; /* unused data pointer */ |
| 166 | char *endptr; /* end of data entries */ |
| 167 | int error; /* error return value */ |
| 168 | int logflags; /* inode logging flags */ |
| 169 | xfs_mount_t *mp; /* filesystem mount point */ |
| 170 | char *ptr; /* current data pointer */ |
| 171 | xfs_dir2_sf_entry_t *sfep; /* shortform entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 172 | xfs_dir2_sf_hdr_t *sfp; /* shortform directory header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 174 | trace_xfs_dir2_block_to_sf(args); |
| 175 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | dp = args->dp; |
| 177 | mp = dp->i_mount; |
| 178 | |
| 179 | /* |
| 180 | * Make a copy of the block data, so we can shrink the inode |
| 181 | * and add local data. |
| 182 | */ |
Christoph Hellwig | a64b041 | 2011-07-08 14:35:32 +0200 | [diff] [blame] | 183 | hdr = kmem_alloc(mp->m_dirblksize, KM_SLEEP); |
Dave Chinner | 1d9025e | 2012-06-22 18:50:14 +1000 | [diff] [blame] | 184 | memcpy(hdr, bp->b_addr, mp->m_dirblksize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | logflags = XFS_ILOG_CORE; |
| 186 | if ((error = xfs_dir2_shrink_inode(args, mp->m_dirdatablk, bp))) { |
| 187 | ASSERT(error != ENOSPC); |
| 188 | goto out; |
| 189 | } |
Christoph Hellwig | 4f6ae1a | 2011-07-08 14:35:27 +0200 | [diff] [blame] | 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | /* |
| 192 | * The buffer is now unconditionally gone, whether |
| 193 | * xfs_dir2_shrink_inode worked or not. |
| 194 | * |
| 195 | * Convert the inode to local format. |
| 196 | */ |
| 197 | dp->i_df.if_flags &= ~XFS_IFEXTENTS; |
| 198 | dp->i_df.if_flags |= XFS_IFINLINE; |
| 199 | dp->i_d.di_format = XFS_DINODE_FMT_LOCAL; |
| 200 | ASSERT(dp->i_df.if_bytes == 0); |
| 201 | xfs_idata_realloc(dp, size, XFS_DATA_FORK); |
| 202 | logflags |= XFS_ILOG_DDATA; |
| 203 | /* |
| 204 | * Copy the header into the newly allocate local space. |
| 205 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 206 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 207 | memcpy(sfp, sfhp, xfs_dir2_sf_hdr_size(sfhp->i8count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | dp->i_d.di_size = size; |
| 209 | /* |
| 210 | * Set up to loop over the block's entries. |
| 211 | */ |
Christoph Hellwig | a64b041 | 2011-07-08 14:35:32 +0200 | [diff] [blame] | 212 | btp = xfs_dir2_block_tail_p(mp, hdr); |
Dave Chinner | 2ca9877 | 2013-10-29 22:11:49 +1100 | [diff] [blame] | 213 | ptr = (char *)dp->d_ops->data_entry_p(hdr); |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 214 | endptr = (char *)xfs_dir2_block_leaf_p(btp); |
| 215 | sfep = xfs_dir2_sf_firstentry(sfp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | /* |
| 217 | * Loop over the active and unused entries. |
| 218 | * Stop when we reach the leaf/tail portion of the block. |
| 219 | */ |
| 220 | while (ptr < endptr) { |
| 221 | /* |
| 222 | * If it's unused, just skip over it. |
| 223 | */ |
| 224 | dup = (xfs_dir2_data_unused_t *)ptr; |
Nathan Scott | ad354eb | 2006-03-17 17:27:37 +1100 | [diff] [blame] | 225 | if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) { |
| 226 | ptr += be16_to_cpu(dup->length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | continue; |
| 228 | } |
| 229 | dep = (xfs_dir2_data_entry_t *)ptr; |
| 230 | /* |
| 231 | * Skip . |
| 232 | */ |
| 233 | if (dep->namelen == 1 && dep->name[0] == '.') |
Christoph Hellwig | ff9901c | 2006-06-09 14:48:37 +1000 | [diff] [blame] | 234 | ASSERT(be64_to_cpu(dep->inumber) == dp->i_ino); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | /* |
| 236 | * Skip .., but make sure the inode number is right. |
| 237 | */ |
| 238 | else if (dep->namelen == 2 && |
| 239 | dep->name[0] == '.' && dep->name[1] == '.') |
Christoph Hellwig | ff9901c | 2006-06-09 14:48:37 +1000 | [diff] [blame] | 240 | ASSERT(be64_to_cpu(dep->inumber) == |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 241 | dp->d_ops->sf_get_parent_ino(sfp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | /* |
| 243 | * Normal entry, copy it into shortform. |
| 244 | */ |
| 245 | else { |
| 246 | sfep->namelen = dep->namelen; |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 247 | xfs_dir2_sf_put_offset(sfep, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | (xfs_dir2_data_aoff_t) |
Christoph Hellwig | a64b041 | 2011-07-08 14:35:32 +0200 | [diff] [blame] | 249 | ((char *)dep - (char *)hdr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | memcpy(sfep->name, dep->name, dep->namelen); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 251 | dp->d_ops->sf_put_ino(sfp, sfep, |
| 252 | be64_to_cpu(dep->inumber)); |
| 253 | dp->d_ops->sf_put_ftype(sfep, |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 254 | dp->d_ops->data_get_ftype(dep)); |
Christoph Hellwig | 8bc3878 | 2011-07-08 14:35:03 +0200 | [diff] [blame] | 255 | |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 256 | sfep = dp->d_ops->sf_nextentry(sfp, sfep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | } |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 258 | ptr += dp->d_ops->data_entsize(dep->namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | ASSERT((char *)sfep - (char *)sfp == size); |
| 261 | xfs_dir2_sf_check(args); |
| 262 | out: |
| 263 | xfs_trans_log_inode(args->trans, dp, logflags); |
Christoph Hellwig | a64b041 | 2011-07-08 14:35:32 +0200 | [diff] [blame] | 264 | kmem_free(hdr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | return error; |
| 266 | } |
| 267 | |
| 268 | /* |
| 269 | * Add a name to a shortform directory. |
| 270 | * There are two algorithms, "easy" and "hard" which we decide on |
| 271 | * before changing anything. |
| 272 | * Convert to block form if necessary, if the new entry won't fit. |
| 273 | */ |
| 274 | int /* error */ |
| 275 | xfs_dir2_sf_addname( |
| 276 | xfs_da_args_t *args) /* operation arguments */ |
| 277 | { |
| 278 | int add_entsize; /* size of the new entry */ |
| 279 | xfs_inode_t *dp; /* incore directory inode */ |
| 280 | int error; /* error return value */ |
| 281 | int incr_isize; /* total change in size */ |
| 282 | int new_isize; /* di_size after adding name */ |
| 283 | int objchange; /* changing to 8-byte inodes */ |
Christoph Hellwig | 5bde1ba9 | 2005-11-02 15:06:18 +1100 | [diff] [blame] | 284 | xfs_dir2_data_aoff_t offset = 0; /* offset for new entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | int old_isize; /* di_size before adding name */ |
| 286 | int pick; /* which algorithm to use */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 287 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Christoph Hellwig | 5bde1ba9 | 2005-11-02 15:06:18 +1100 | [diff] [blame] | 288 | xfs_dir2_sf_entry_t *sfep = NULL; /* shortform entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 290 | trace_xfs_dir2_sf_addname(args); |
| 291 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | ASSERT(xfs_dir2_sf_lookup(args) == ENOENT); |
| 293 | dp = args->dp; |
| 294 | ASSERT(dp->i_df.if_flags & XFS_IFINLINE); |
| 295 | /* |
| 296 | * Make sure the shortform value has some of its header. |
| 297 | */ |
| 298 | if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { |
| 299 | ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); |
| 300 | return XFS_ERROR(EIO); |
| 301 | } |
| 302 | ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); |
| 303 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 304 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 305 | ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | /* |
| 307 | * Compute entry (and change in) size. |
| 308 | */ |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 309 | add_entsize = dp->d_ops->sf_entsize(sfp, args->namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | incr_isize = add_entsize; |
| 311 | objchange = 0; |
| 312 | #if XFS_BIG_INUMS |
| 313 | /* |
| 314 | * Do we have to change to 8 byte inodes? |
| 315 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 316 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | /* |
| 318 | * Yes, adjust the entry size and the total size. |
| 319 | */ |
| 320 | add_entsize += |
| 321 | (uint)sizeof(xfs_dir2_ino8_t) - |
| 322 | (uint)sizeof(xfs_dir2_ino4_t); |
| 323 | incr_isize += |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 324 | (sfp->count + 2) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | ((uint)sizeof(xfs_dir2_ino8_t) - |
| 326 | (uint)sizeof(xfs_dir2_ino4_t)); |
| 327 | objchange = 1; |
| 328 | } |
| 329 | #endif |
| 330 | old_isize = (int)dp->i_d.di_size; |
| 331 | new_isize = old_isize + incr_isize; |
| 332 | /* |
| 333 | * Won't fit as shortform any more (due to size), |
| 334 | * or the pick routine says it won't (due to offset values). |
| 335 | */ |
| 336 | if (new_isize > XFS_IFORK_DSIZE(dp) || |
| 337 | (pick = |
| 338 | xfs_dir2_sf_addname_pick(args, objchange, &sfep, &offset)) == 0) { |
| 339 | /* |
| 340 | * Just checking or no space reservation, it doesn't fit. |
| 341 | */ |
Barry Naujok | 6a17810 | 2008-05-21 16:42:05 +1000 | [diff] [blame] | 342 | if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | return XFS_ERROR(ENOSPC); |
| 344 | /* |
| 345 | * Convert to block form then add the name. |
| 346 | */ |
| 347 | error = xfs_dir2_sf_to_block(args); |
| 348 | if (error) |
| 349 | return error; |
| 350 | return xfs_dir2_block_addname(args); |
| 351 | } |
| 352 | /* |
| 353 | * Just checking, it fits. |
| 354 | */ |
Barry Naujok | 6a17810 | 2008-05-21 16:42:05 +1000 | [diff] [blame] | 355 | if (args->op_flags & XFS_DA_OP_JUSTCHECK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | return 0; |
| 357 | /* |
| 358 | * Do it the easy way - just add it at the end. |
| 359 | */ |
| 360 | if (pick == 1) |
| 361 | xfs_dir2_sf_addname_easy(args, sfep, offset, new_isize); |
| 362 | /* |
| 363 | * Do it the hard way - look for a place to insert the new entry. |
| 364 | * Convert to 8 byte inode numbers first if necessary. |
| 365 | */ |
| 366 | else { |
| 367 | ASSERT(pick == 2); |
| 368 | #if XFS_BIG_INUMS |
| 369 | if (objchange) |
| 370 | xfs_dir2_sf_toino8(args); |
| 371 | #endif |
| 372 | xfs_dir2_sf_addname_hard(args, objchange, new_isize); |
| 373 | } |
| 374 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
| 375 | return 0; |
| 376 | } |
| 377 | |
| 378 | /* |
| 379 | * Add the new entry the "easy" way. |
| 380 | * This is copying the old directory and adding the new entry at the end. |
| 381 | * Since it's sorted by "offset" we need room after the last offset |
| 382 | * that's already there, and then room to convert to a block directory. |
| 383 | * This is already checked by the pick routine. |
| 384 | */ |
| 385 | static void |
| 386 | xfs_dir2_sf_addname_easy( |
| 387 | xfs_da_args_t *args, /* operation arguments */ |
| 388 | xfs_dir2_sf_entry_t *sfep, /* pointer to new entry */ |
| 389 | xfs_dir2_data_aoff_t offset, /* offset to use for new ent */ |
| 390 | int new_isize) /* new directory size */ |
| 391 | { |
| 392 | int byteoff; /* byte offset in sf dir */ |
| 393 | xfs_inode_t *dp; /* incore directory inode */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 394 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
| 396 | dp = args->dp; |
| 397 | |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 398 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | byteoff = (int)((char *)sfep - (char *)sfp); |
| 400 | /* |
| 401 | * Grow the in-inode space. |
| 402 | */ |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 403 | xfs_idata_realloc(dp, dp->d_ops->sf_entsize(sfp, args->namelen), |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 404 | XFS_DATA_FORK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | /* |
| 406 | * Need to set up again due to realloc of the inode data. |
| 407 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 408 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + byteoff); |
| 410 | /* |
| 411 | * Fill in the new entry. |
| 412 | */ |
| 413 | sfep->namelen = args->namelen; |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 414 | xfs_dir2_sf_put_offset(sfep, offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | memcpy(sfep->name, args->name, sfep->namelen); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 416 | dp->d_ops->sf_put_ino(sfp, sfep, args->inumber); |
| 417 | dp->d_ops->sf_put_ftype(sfep, args->filetype); |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 418 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | /* |
| 420 | * Update the header and inode. |
| 421 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 422 | sfp->count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | #if XFS_BIG_INUMS |
| 424 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 425 | sfp->i8count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | #endif |
| 427 | dp->i_d.di_size = new_isize; |
| 428 | xfs_dir2_sf_check(args); |
| 429 | } |
| 430 | |
| 431 | /* |
| 432 | * Add the new entry the "hard" way. |
| 433 | * The caller has already converted to 8 byte inode numbers if necessary, |
| 434 | * in which case we need to leave the i8count at 1. |
| 435 | * Find a hole that the new entry will fit into, and copy |
| 436 | * the first part of the entries, the new entry, and the last part of |
| 437 | * the entries. |
| 438 | */ |
| 439 | /* ARGSUSED */ |
| 440 | static void |
| 441 | xfs_dir2_sf_addname_hard( |
| 442 | xfs_da_args_t *args, /* operation arguments */ |
| 443 | int objchange, /* changing inode number size */ |
| 444 | int new_isize) /* new directory size */ |
| 445 | { |
| 446 | int add_datasize; /* data size need for new ent */ |
| 447 | char *buf; /* buffer for old */ |
| 448 | xfs_inode_t *dp; /* incore directory inode */ |
| 449 | int eof; /* reached end of old dir */ |
| 450 | int nbytes; /* temp for byte copies */ |
| 451 | xfs_dir2_data_aoff_t new_offset; /* next offset value */ |
| 452 | xfs_dir2_data_aoff_t offset; /* current offset value */ |
| 453 | int old_isize; /* previous di_size */ |
| 454 | xfs_dir2_sf_entry_t *oldsfep; /* entry in original dir */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 455 | xfs_dir2_sf_hdr_t *oldsfp; /* original shortform dir */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | xfs_dir2_sf_entry_t *sfep; /* entry in new dir */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 457 | xfs_dir2_sf_hdr_t *sfp; /* new shortform dir */ |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 458 | struct xfs_mount *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | |
| 460 | /* |
| 461 | * Copy the old directory to the stack buffer. |
| 462 | */ |
| 463 | dp = args->dp; |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 464 | mp = dp->i_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 466 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | old_isize = (int)dp->i_d.di_size; |
| 468 | buf = kmem_alloc(old_isize, KM_SLEEP); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 469 | oldsfp = (xfs_dir2_sf_hdr_t *)buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | memcpy(oldsfp, sfp, old_isize); |
| 471 | /* |
| 472 | * Loop over the old directory finding the place we're going |
| 473 | * to insert the new entry. |
| 474 | * If it's going to end up at the end then oldsfep will point there. |
| 475 | */ |
Dave Chinner | 1c9a5b2 | 2013-10-30 09:15:02 +1100 | [diff] [blame] | 476 | for (offset = dp->d_ops->data_first_offset, |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 477 | oldsfep = xfs_dir2_sf_firstentry(oldsfp), |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 478 | add_datasize = dp->d_ops->data_entsize(args->namelen), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | eof = (char *)oldsfep == &buf[old_isize]; |
| 480 | !eof; |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 481 | offset = new_offset + dp->d_ops->data_entsize(oldsfep->namelen), |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 482 | oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | eof = (char *)oldsfep == &buf[old_isize]) { |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 484 | new_offset = xfs_dir2_sf_get_offset(oldsfep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | if (offset + add_datasize <= new_offset) |
| 486 | break; |
| 487 | } |
| 488 | /* |
| 489 | * Get rid of the old directory, then allocate space for |
| 490 | * the new one. We do this so xfs_idata_realloc won't copy |
| 491 | * the data. |
| 492 | */ |
| 493 | xfs_idata_realloc(dp, -old_isize, XFS_DATA_FORK); |
| 494 | xfs_idata_realloc(dp, new_isize, XFS_DATA_FORK); |
| 495 | /* |
| 496 | * Reset the pointer since the buffer was reallocated. |
| 497 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 498 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | /* |
| 500 | * Copy the first part of the directory, including the header. |
| 501 | */ |
| 502 | nbytes = (int)((char *)oldsfep - (char *)oldsfp); |
| 503 | memcpy(sfp, oldsfp, nbytes); |
| 504 | sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + nbytes); |
| 505 | /* |
| 506 | * Fill in the new entry, and update the header counts. |
| 507 | */ |
| 508 | sfep->namelen = args->namelen; |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 509 | xfs_dir2_sf_put_offset(sfep, offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | memcpy(sfep->name, args->name, sfep->namelen); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 511 | dp->d_ops->sf_put_ino(sfp, sfep, args->inumber); |
| 512 | dp->d_ops->sf_put_ftype(sfep, args->filetype); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 513 | sfp->count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | #if XFS_BIG_INUMS |
| 515 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange) |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 516 | sfp->i8count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | #endif |
| 518 | /* |
| 519 | * If there's more left to copy, do that. |
| 520 | */ |
| 521 | if (!eof) { |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 522 | sfep = dp->d_ops->sf_nextentry(sfp, sfep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | memcpy(sfep, oldsfep, old_isize - nbytes); |
| 524 | } |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 525 | kmem_free(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | dp->i_d.di_size = new_isize; |
| 527 | xfs_dir2_sf_check(args); |
| 528 | } |
| 529 | |
| 530 | /* |
| 531 | * Decide if the new entry will fit at all. |
| 532 | * If it will fit, pick between adding the new entry to the end (easy) |
| 533 | * or somewhere else (hard). |
| 534 | * Return 0 (won't fit), 1 (easy), 2 (hard). |
| 535 | */ |
| 536 | /*ARGSUSED*/ |
| 537 | static int /* pick result */ |
| 538 | xfs_dir2_sf_addname_pick( |
| 539 | xfs_da_args_t *args, /* operation arguments */ |
| 540 | int objchange, /* inode # size changes */ |
| 541 | xfs_dir2_sf_entry_t **sfepp, /* out(1): new entry ptr */ |
| 542 | xfs_dir2_data_aoff_t *offsetp) /* out(1): new offset */ |
| 543 | { |
| 544 | xfs_inode_t *dp; /* incore directory inode */ |
| 545 | int holefit; /* found hole it will fit in */ |
| 546 | int i; /* entry number */ |
| 547 | xfs_mount_t *mp; /* filesystem mount point */ |
| 548 | xfs_dir2_data_aoff_t offset; /* data block offset */ |
| 549 | xfs_dir2_sf_entry_t *sfep; /* shortform entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 550 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | int size; /* entry's data size */ |
| 552 | int used; /* data bytes used */ |
| 553 | |
| 554 | dp = args->dp; |
| 555 | mp = dp->i_mount; |
| 556 | |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 557 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 558 | size = dp->d_ops->data_entsize(args->namelen); |
Dave Chinner | 1c9a5b2 | 2013-10-30 09:15:02 +1100 | [diff] [blame] | 559 | offset = dp->d_ops->data_first_offset; |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 560 | sfep = xfs_dir2_sf_firstentry(sfp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | holefit = 0; |
| 562 | /* |
| 563 | * Loop over sf entries. |
| 564 | * Keep track of data offset and whether we've seen a place |
| 565 | * to insert the new entry. |
| 566 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 567 | for (i = 0; i < sfp->count; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | if (!holefit) |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 569 | holefit = offset + size <= xfs_dir2_sf_get_offset(sfep); |
| 570 | offset = xfs_dir2_sf_get_offset(sfep) + |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 571 | dp->d_ops->data_entsize(sfep->namelen); |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 572 | sfep = dp->d_ops->sf_nextentry(sfp, sfep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | } |
| 574 | /* |
| 575 | * Calculate data bytes used excluding the new entry, if this |
| 576 | * was a data block (block form directory). |
| 577 | */ |
| 578 | used = offset + |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 579 | (sfp->count + 3) * (uint)sizeof(xfs_dir2_leaf_entry_t) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | (uint)sizeof(xfs_dir2_block_tail_t); |
| 581 | /* |
| 582 | * If it won't fit in a block form then we can't insert it, |
| 583 | * we'll go back, convert to block, then try the insert and convert |
| 584 | * to leaf. |
| 585 | */ |
| 586 | if (used + (holefit ? 0 : size) > mp->m_dirblksize) |
| 587 | return 0; |
| 588 | /* |
| 589 | * If changing the inode number size, do it the hard way. |
| 590 | */ |
| 591 | #if XFS_BIG_INUMS |
| 592 | if (objchange) { |
| 593 | return 2; |
| 594 | } |
| 595 | #else |
| 596 | ASSERT(objchange == 0); |
| 597 | #endif |
| 598 | /* |
| 599 | * If it won't fit at the end then do it the hard way (use the hole). |
| 600 | */ |
| 601 | if (used + size > mp->m_dirblksize) |
| 602 | return 2; |
| 603 | /* |
| 604 | * Do it the easy way. |
| 605 | */ |
| 606 | *sfepp = sfep; |
| 607 | *offsetp = offset; |
| 608 | return 1; |
| 609 | } |
| 610 | |
| 611 | #ifdef DEBUG |
| 612 | /* |
| 613 | * Check consistency of shortform directory, assert if bad. |
| 614 | */ |
| 615 | static void |
| 616 | xfs_dir2_sf_check( |
| 617 | xfs_da_args_t *args) /* operation arguments */ |
| 618 | { |
| 619 | xfs_inode_t *dp; /* incore directory inode */ |
| 620 | int i; /* entry number */ |
| 621 | int i8count; /* number of big inode#s */ |
| 622 | xfs_ino_t ino; /* entry inode number */ |
| 623 | int offset; /* data offset */ |
| 624 | xfs_dir2_sf_entry_t *sfep; /* shortform dir entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 625 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 626 | struct xfs_mount *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | |
| 628 | dp = args->dp; |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 629 | mp = dp->i_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 631 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Dave Chinner | 1c9a5b2 | 2013-10-30 09:15:02 +1100 | [diff] [blame] | 632 | offset = dp->d_ops->data_first_offset; |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 633 | ino = dp->d_ops->sf_get_parent_ino(sfp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | i8count = ino > XFS_DIR2_MAX_SHORT_INUM; |
| 635 | |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 636 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 637 | i < sfp->count; |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 638 | i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 639 | ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 640 | ino = dp->d_ops->sf_get_ino(sfp, sfep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | i8count += ino > XFS_DIR2_MAX_SHORT_INUM; |
| 642 | offset = |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 643 | xfs_dir2_sf_get_offset(sfep) + |
Dave Chinner | 9d23fc8 | 2013-10-29 22:11:48 +1100 | [diff] [blame] | 644 | dp->d_ops->data_entsize(sfep->namelen); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 645 | ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | } |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 647 | ASSERT(i8count == sfp->i8count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | ASSERT(XFS_BIG_INUMS || i8count == 0); |
| 649 | ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size); |
| 650 | ASSERT(offset + |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 651 | (sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) + |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 652 | (uint)sizeof(xfs_dir2_block_tail_t) <= mp->m_dirblksize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | } |
| 654 | #endif /* DEBUG */ |
| 655 | |
| 656 | /* |
| 657 | * Create a new (shortform) directory. |
| 658 | */ |
| 659 | int /* error, always 0 */ |
| 660 | xfs_dir2_sf_create( |
| 661 | xfs_da_args_t *args, /* operation arguments */ |
| 662 | xfs_ino_t pino) /* parent inode number */ |
| 663 | { |
| 664 | xfs_inode_t *dp; /* incore directory inode */ |
| 665 | int i8count; /* parent inode is an 8-byte number */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 666 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | int size; /* directory size */ |
| 668 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 669 | trace_xfs_dir2_sf_create(args); |
| 670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | dp = args->dp; |
| 672 | |
| 673 | ASSERT(dp != NULL); |
| 674 | ASSERT(dp->i_d.di_size == 0); |
| 675 | /* |
| 676 | * If it's currently a zero-length extent file, |
| 677 | * convert it to local format. |
| 678 | */ |
| 679 | if (dp->i_d.di_format == XFS_DINODE_FMT_EXTENTS) { |
| 680 | dp->i_df.if_flags &= ~XFS_IFEXTENTS; /* just in case */ |
| 681 | dp->i_d.di_format = XFS_DINODE_FMT_LOCAL; |
| 682 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE); |
| 683 | dp->i_df.if_flags |= XFS_IFINLINE; |
| 684 | } |
| 685 | ASSERT(dp->i_df.if_flags & XFS_IFINLINE); |
| 686 | ASSERT(dp->i_df.if_bytes == 0); |
| 687 | i8count = pino > XFS_DIR2_MAX_SHORT_INUM; |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 688 | size = xfs_dir2_sf_hdr_size(i8count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | /* |
| 690 | * Make a buffer for the data. |
| 691 | */ |
| 692 | xfs_idata_realloc(dp, size, XFS_DATA_FORK); |
| 693 | /* |
| 694 | * Fill in the header, |
| 695 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 696 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 697 | sfp->i8count = i8count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | /* |
| 699 | * Now can put in the inode number, since i8count is set. |
| 700 | */ |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 701 | dp->d_ops->sf_put_parent_ino(sfp, pino); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 702 | sfp->count = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | dp->i_d.di_size = size; |
| 704 | xfs_dir2_sf_check(args); |
| 705 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
| 706 | return 0; |
| 707 | } |
| 708 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | /* |
| 710 | * Lookup an entry in a shortform directory. |
| 711 | * Returns EEXIST if found, ENOENT if not found. |
| 712 | */ |
| 713 | int /* error */ |
| 714 | xfs_dir2_sf_lookup( |
| 715 | xfs_da_args_t *args) /* operation arguments */ |
| 716 | { |
| 717 | xfs_inode_t *dp; /* incore directory inode */ |
| 718 | int i; /* entry index */ |
Barry Naujok | 384f3ce | 2008-05-21 16:58:22 +1000 | [diff] [blame] | 719 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 721 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 722 | enum xfs_dacmp cmp; /* comparison result */ |
Barry Naujok | 384f3ce | 2008-05-21 16:58:22 +1000 | [diff] [blame] | 723 | xfs_dir2_sf_entry_t *ci_sfep; /* case-insens. entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 725 | trace_xfs_dir2_sf_lookup(args); |
| 726 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | xfs_dir2_sf_check(args); |
| 728 | dp = args->dp; |
| 729 | |
| 730 | ASSERT(dp->i_df.if_flags & XFS_IFINLINE); |
| 731 | /* |
| 732 | * Bail out if the directory is way too short. |
| 733 | */ |
| 734 | if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { |
| 735 | ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); |
| 736 | return XFS_ERROR(EIO); |
| 737 | } |
| 738 | ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); |
| 739 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 740 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 741 | ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | /* |
| 743 | * Special case for . |
| 744 | */ |
| 745 | if (args->namelen == 1 && args->name[0] == '.') { |
| 746 | args->inumber = dp->i_ino; |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 747 | args->cmpresult = XFS_CMP_EXACT; |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 748 | args->filetype = XFS_DIR3_FT_DIR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | return XFS_ERROR(EEXIST); |
| 750 | } |
| 751 | /* |
| 752 | * Special case for .. |
| 753 | */ |
| 754 | if (args->namelen == 2 && |
| 755 | args->name[0] == '.' && args->name[1] == '.') { |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 756 | args->inumber = dp->d_ops->sf_get_parent_ino(sfp); |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 757 | args->cmpresult = XFS_CMP_EXACT; |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 758 | args->filetype = XFS_DIR3_FT_DIR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | return XFS_ERROR(EEXIST); |
| 760 | } |
| 761 | /* |
| 762 | * Loop over all the entries trying to match ours. |
| 763 | */ |
Barry Naujok | 384f3ce | 2008-05-21 16:58:22 +1000 | [diff] [blame] | 764 | ci_sfep = NULL; |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 765 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 766 | i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 767 | /* |
| 768 | * Compare name and if it's an exact match, return the inode |
| 769 | * number. If it's the first case-insensitive match, store the |
| 770 | * inode number and continue looking for an exact match. |
| 771 | */ |
| 772 | cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name, |
| 773 | sfep->namelen); |
| 774 | if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { |
| 775 | args->cmpresult = cmp; |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 776 | args->inumber = dp->d_ops->sf_get_ino(sfp, sfep); |
| 777 | args->filetype = dp->d_ops->sf_get_ftype(sfep); |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 778 | if (cmp == XFS_CMP_EXACT) |
| 779 | return XFS_ERROR(EEXIST); |
Barry Naujok | 384f3ce | 2008-05-21 16:58:22 +1000 | [diff] [blame] | 780 | ci_sfep = sfep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | } |
| 782 | } |
Barry Naujok | 6a17810 | 2008-05-21 16:42:05 +1000 | [diff] [blame] | 783 | ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 784 | /* |
| 785 | * Here, we can only be doing a lookup (not a rename or replace). |
Barry Naujok | 384f3ce | 2008-05-21 16:58:22 +1000 | [diff] [blame] | 786 | * If a case-insensitive match was not found, return ENOENT. |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 787 | */ |
Barry Naujok | 384f3ce | 2008-05-21 16:58:22 +1000 | [diff] [blame] | 788 | if (!ci_sfep) |
| 789 | return XFS_ERROR(ENOENT); |
| 790 | /* otherwise process the CI match as required by the caller */ |
| 791 | error = xfs_dir_cilookup_result(args, ci_sfep->name, ci_sfep->namelen); |
| 792 | return XFS_ERROR(error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | } |
| 794 | |
| 795 | /* |
| 796 | * Remove an entry from a shortform directory. |
| 797 | */ |
| 798 | int /* error */ |
| 799 | xfs_dir2_sf_removename( |
| 800 | xfs_da_args_t *args) |
| 801 | { |
| 802 | int byteoff; /* offset of removed entry */ |
| 803 | xfs_inode_t *dp; /* incore directory inode */ |
| 804 | int entsize; /* this entry's size */ |
| 805 | int i; /* shortform entry index */ |
| 806 | int newsize; /* new inode size */ |
| 807 | int oldsize; /* old inode size */ |
| 808 | xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 809 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 811 | trace_xfs_dir2_sf_removename(args); |
| 812 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | dp = args->dp; |
| 814 | |
| 815 | ASSERT(dp->i_df.if_flags & XFS_IFINLINE); |
| 816 | oldsize = (int)dp->i_d.di_size; |
| 817 | /* |
| 818 | * Bail out if the directory is way too short. |
| 819 | */ |
| 820 | if (oldsize < offsetof(xfs_dir2_sf_hdr_t, parent)) { |
| 821 | ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); |
| 822 | return XFS_ERROR(EIO); |
| 823 | } |
| 824 | ASSERT(dp->i_df.if_bytes == oldsize); |
| 825 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 826 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 827 | ASSERT(oldsize >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | /* |
| 829 | * Loop over the old directory entries. |
| 830 | * Find the one we're deleting. |
| 831 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 832 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 833 | i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 834 | if (xfs_da_compname(args, sfep->name, sfep->namelen) == |
| 835 | XFS_CMP_EXACT) { |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 836 | ASSERT(dp->d_ops->sf_get_ino(sfp, sfep) == |
Christoph Hellwig | 8bc3878 | 2011-07-08 14:35:03 +0200 | [diff] [blame] | 837 | args->inumber); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | break; |
| 839 | } |
| 840 | } |
| 841 | /* |
| 842 | * Didn't find it. |
| 843 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 844 | if (i == sfp->count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | return XFS_ERROR(ENOENT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | /* |
| 847 | * Calculate sizes. |
| 848 | */ |
| 849 | byteoff = (int)((char *)sfep - (char *)sfp); |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 850 | entsize = dp->d_ops->sf_entsize(sfp, args->namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | newsize = oldsize - entsize; |
| 852 | /* |
| 853 | * Copy the part if any after the removed entry, sliding it down. |
| 854 | */ |
| 855 | if (byteoff + entsize < oldsize) |
| 856 | memmove((char *)sfp + byteoff, (char *)sfp + byteoff + entsize, |
| 857 | oldsize - (byteoff + entsize)); |
| 858 | /* |
| 859 | * Fix up the header and file size. |
| 860 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 861 | sfp->count--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | dp->i_d.di_size = newsize; |
| 863 | /* |
| 864 | * Reallocate, making it smaller. |
| 865 | */ |
| 866 | xfs_idata_realloc(dp, newsize - oldsize, XFS_DATA_FORK); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 867 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | #if XFS_BIG_INUMS |
| 869 | /* |
| 870 | * Are we changing inode number size? |
| 871 | */ |
| 872 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) { |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 873 | if (sfp->i8count == 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | xfs_dir2_sf_toino4(args); |
| 875 | else |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 876 | sfp->i8count--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | } |
| 878 | #endif |
| 879 | xfs_dir2_sf_check(args); |
| 880 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
| 881 | return 0; |
| 882 | } |
| 883 | |
| 884 | /* |
| 885 | * Replace the inode number of an entry in a shortform directory. |
| 886 | */ |
| 887 | int /* error */ |
| 888 | xfs_dir2_sf_replace( |
| 889 | xfs_da_args_t *args) /* operation arguments */ |
| 890 | { |
| 891 | xfs_inode_t *dp; /* incore directory inode */ |
| 892 | int i; /* entry index */ |
| 893 | #if XFS_BIG_INUMS || defined(DEBUG) |
| 894 | xfs_ino_t ino=0; /* entry old inode number */ |
| 895 | #endif |
| 896 | #if XFS_BIG_INUMS |
| 897 | int i8elevated; /* sf_toino8 set i8count=1 */ |
| 898 | #endif |
| 899 | xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 900 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 902 | trace_xfs_dir2_sf_replace(args); |
| 903 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | dp = args->dp; |
| 905 | |
| 906 | ASSERT(dp->i_df.if_flags & XFS_IFINLINE); |
| 907 | /* |
| 908 | * Bail out if the shortform directory is way too small. |
| 909 | */ |
| 910 | if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { |
| 911 | ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); |
| 912 | return XFS_ERROR(EIO); |
| 913 | } |
| 914 | ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); |
| 915 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 916 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 917 | ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | #if XFS_BIG_INUMS |
| 919 | /* |
| 920 | * New inode number is large, and need to convert to 8-byte inodes. |
| 921 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 922 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | int error; /* error return value */ |
| 924 | int newsize; /* new inode size */ |
| 925 | |
| 926 | newsize = |
| 927 | dp->i_df.if_bytes + |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 928 | (sfp->count + 1) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | ((uint)sizeof(xfs_dir2_ino8_t) - |
| 930 | (uint)sizeof(xfs_dir2_ino4_t)); |
| 931 | /* |
| 932 | * Won't fit as shortform, convert to block then do replace. |
| 933 | */ |
| 934 | if (newsize > XFS_IFORK_DSIZE(dp)) { |
| 935 | error = xfs_dir2_sf_to_block(args); |
| 936 | if (error) { |
| 937 | return error; |
| 938 | } |
| 939 | return xfs_dir2_block_replace(args); |
| 940 | } |
| 941 | /* |
| 942 | * Still fits, convert to 8-byte now. |
| 943 | */ |
| 944 | xfs_dir2_sf_toino8(args); |
| 945 | i8elevated = 1; |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 946 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | } else |
| 948 | i8elevated = 0; |
| 949 | #endif |
| 950 | ASSERT(args->namelen != 1 || args->name[0] != '.'); |
| 951 | /* |
| 952 | * Replace ..'s entry. |
| 953 | */ |
| 954 | if (args->namelen == 2 && |
| 955 | args->name[0] == '.' && args->name[1] == '.') { |
| 956 | #if XFS_BIG_INUMS || defined(DEBUG) |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 957 | ino = dp->d_ops->sf_get_parent_ino(sfp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | ASSERT(args->inumber != ino); |
| 959 | #endif |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 960 | dp->d_ops->sf_put_parent_ino(sfp, args->inumber); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | } |
| 962 | /* |
| 963 | * Normal entry, look for the name. |
| 964 | */ |
| 965 | else { |
Dave Chinner | 0cb9776 | 2013-08-12 20:50:09 +1000 | [diff] [blame] | 966 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 967 | i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 968 | if (xfs_da_compname(args, sfep->name, sfep->namelen) == |
| 969 | XFS_CMP_EXACT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | #if XFS_BIG_INUMS || defined(DEBUG) |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 971 | ino = dp->d_ops->sf_get_ino(sfp, sfep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | ASSERT(args->inumber != ino); |
| 973 | #endif |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 974 | dp->d_ops->sf_put_ino(sfp, sfep, args->inumber); |
| 975 | dp->d_ops->sf_put_ftype(sfep, args->filetype); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | break; |
| 977 | } |
| 978 | } |
| 979 | /* |
| 980 | * Didn't find it. |
| 981 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 982 | if (i == sfp->count) { |
Barry Naujok | 6a17810 | 2008-05-21 16:42:05 +1000 | [diff] [blame] | 983 | ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | #if XFS_BIG_INUMS |
| 985 | if (i8elevated) |
| 986 | xfs_dir2_sf_toino4(args); |
| 987 | #endif |
| 988 | return XFS_ERROR(ENOENT); |
| 989 | } |
| 990 | } |
| 991 | #if XFS_BIG_INUMS |
| 992 | /* |
| 993 | * See if the old number was large, the new number is small. |
| 994 | */ |
| 995 | if (ino > XFS_DIR2_MAX_SHORT_INUM && |
| 996 | args->inumber <= XFS_DIR2_MAX_SHORT_INUM) { |
| 997 | /* |
| 998 | * And the old count was one, so need to convert to small. |
| 999 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1000 | if (sfp->i8count == 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1001 | xfs_dir2_sf_toino4(args); |
| 1002 | else |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1003 | sfp->i8count--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | } |
| 1005 | /* |
| 1006 | * See if the old number was small, the new number is large. |
| 1007 | */ |
| 1008 | if (ino <= XFS_DIR2_MAX_SHORT_INUM && |
| 1009 | args->inumber > XFS_DIR2_MAX_SHORT_INUM) { |
| 1010 | /* |
| 1011 | * add to the i8count unless we just converted to 8-byte |
| 1012 | * inodes (which does an implied i8count = 1) |
| 1013 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1014 | ASSERT(sfp->i8count != 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1015 | if (!i8elevated) |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1016 | sfp->i8count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | } |
| 1018 | #endif |
| 1019 | xfs_dir2_sf_check(args); |
| 1020 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA); |
| 1021 | return 0; |
| 1022 | } |
| 1023 | |
| 1024 | #if XFS_BIG_INUMS |
| 1025 | /* |
| 1026 | * Convert from 8-byte inode numbers to 4-byte inode numbers. |
| 1027 | * The last 8-byte inode number is gone, but the count is still 1. |
| 1028 | */ |
| 1029 | static void |
| 1030 | xfs_dir2_sf_toino4( |
| 1031 | xfs_da_args_t *args) /* operation arguments */ |
| 1032 | { |
| 1033 | char *buf; /* old dir's buffer */ |
| 1034 | xfs_inode_t *dp; /* incore directory inode */ |
| 1035 | int i; /* entry index */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | int newsize; /* new inode size */ |
| 1037 | xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1038 | xfs_dir2_sf_hdr_t *oldsfp; /* old sf directory */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | int oldsize; /* old inode size */ |
| 1040 | xfs_dir2_sf_entry_t *sfep; /* new sf entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1041 | xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 1042 | struct xfs_mount *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 1044 | trace_xfs_dir2_sf_toino4(args); |
| 1045 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | dp = args->dp; |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 1047 | mp = dp->i_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | |
| 1049 | /* |
| 1050 | * Copy the old directory to the buffer. |
| 1051 | * Then nuke it from the inode, and add the new buffer to the inode. |
| 1052 | * Don't want xfs_idata_realloc copying the data here. |
| 1053 | */ |
| 1054 | oldsize = dp->i_df.if_bytes; |
| 1055 | buf = kmem_alloc(oldsize, KM_SLEEP); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1056 | oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 1057 | ASSERT(oldsfp->i8count == 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | memcpy(buf, oldsfp, oldsize); |
| 1059 | /* |
| 1060 | * Compute the new inode size. |
| 1061 | */ |
| 1062 | newsize = |
| 1063 | oldsize - |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1064 | (oldsfp->count + 1) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); |
| 1066 | xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK); |
| 1067 | xfs_idata_realloc(dp, newsize, XFS_DATA_FORK); |
| 1068 | /* |
| 1069 | * Reset our pointers, the data has moved. |
| 1070 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1071 | oldsfp = (xfs_dir2_sf_hdr_t *)buf; |
| 1072 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | /* |
| 1074 | * Fill in the new header. |
| 1075 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1076 | sfp->count = oldsfp->count; |
| 1077 | sfp->i8count = 0; |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 1078 | dp->d_ops->sf_put_parent_ino(sfp, dp->d_ops->sf_get_parent_ino(oldsfp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | /* |
| 1080 | * Copy the entries field by field. |
| 1081 | */ |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 1082 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), |
| 1083 | oldsfep = xfs_dir2_sf_firstentry(oldsfp); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1084 | i < sfp->count; |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 1085 | i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep), |
| 1086 | oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | sfep->namelen = oldsfep->namelen; |
| 1088 | sfep->offset = oldsfep->offset; |
| 1089 | memcpy(sfep->name, oldsfep->name, sfep->namelen); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 1090 | dp->d_ops->sf_put_ino(sfp, sfep, |
| 1091 | dp->d_ops->sf_get_ino(oldsfp, oldsfep)); |
| 1092 | dp->d_ops->sf_put_ftype(sfep, dp->d_ops->sf_get_ftype(oldsfep)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1093 | } |
| 1094 | /* |
| 1095 | * Clean up the inode. |
| 1096 | */ |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 1097 | kmem_free(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1098 | dp->i_d.di_size = newsize; |
| 1099 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
| 1100 | } |
| 1101 | |
| 1102 | /* |
| 1103 | * Convert from 4-byte inode numbers to 8-byte inode numbers. |
| 1104 | * The new 8-byte inode number is not there yet, we leave with the |
| 1105 | * count 1 but no corresponding entry. |
| 1106 | */ |
| 1107 | static void |
| 1108 | xfs_dir2_sf_toino8( |
| 1109 | xfs_da_args_t *args) /* operation arguments */ |
| 1110 | { |
| 1111 | char *buf; /* old dir's buffer */ |
| 1112 | xfs_inode_t *dp; /* incore directory inode */ |
| 1113 | int i; /* entry index */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | int newsize; /* new inode size */ |
| 1115 | xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1116 | xfs_dir2_sf_hdr_t *oldsfp; /* old sf directory */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | int oldsize; /* old inode size */ |
| 1118 | xfs_dir2_sf_entry_t *sfep; /* new sf entry */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1119 | xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 1120 | struct xfs_mount *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 1122 | trace_xfs_dir2_sf_toino8(args); |
| 1123 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | dp = args->dp; |
Dave Chinner | 1c55cec | 2013-08-12 20:50:10 +1000 | [diff] [blame] | 1125 | mp = dp->i_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1126 | |
| 1127 | /* |
| 1128 | * Copy the old directory to the buffer. |
| 1129 | * Then nuke it from the inode, and add the new buffer to the inode. |
| 1130 | * Don't want xfs_idata_realloc copying the data here. |
| 1131 | */ |
| 1132 | oldsize = dp->i_df.if_bytes; |
| 1133 | buf = kmem_alloc(oldsize, KM_SLEEP); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1134 | oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
| 1135 | ASSERT(oldsfp->i8count == 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | memcpy(buf, oldsfp, oldsize); |
| 1137 | /* |
| 1138 | * Compute the new inode size. |
| 1139 | */ |
| 1140 | newsize = |
| 1141 | oldsize + |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1142 | (oldsfp->count + 1) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); |
| 1144 | xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK); |
| 1145 | xfs_idata_realloc(dp, newsize, XFS_DATA_FORK); |
| 1146 | /* |
| 1147 | * Reset our pointers, the data has moved. |
| 1148 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1149 | oldsfp = (xfs_dir2_sf_hdr_t *)buf; |
| 1150 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | /* |
| 1152 | * Fill in the new header. |
| 1153 | */ |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1154 | sfp->count = oldsfp->count; |
| 1155 | sfp->i8count = 1; |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 1156 | dp->d_ops->sf_put_parent_ino(sfp, dp->d_ops->sf_get_parent_ino(oldsfp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | /* |
| 1158 | * Copy the entries field by field. |
| 1159 | */ |
Christoph Hellwig | bbaaf53 | 2007-06-28 16:43:50 +1000 | [diff] [blame] | 1160 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), |
| 1161 | oldsfep = xfs_dir2_sf_firstentry(oldsfp); |
Christoph Hellwig | ac8ba50 | 2011-07-08 14:35:13 +0200 | [diff] [blame] | 1162 | i < sfp->count; |
Dave Chinner | 32c5483 | 2013-10-29 22:11:46 +1100 | [diff] [blame] | 1163 | i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep), |
| 1164 | oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | sfep->namelen = oldsfep->namelen; |
| 1166 | sfep->offset = oldsfep->offset; |
| 1167 | memcpy(sfep->name, oldsfep->name, sfep->namelen); |
Dave Chinner | 4740175 | 2013-10-29 22:11:47 +1100 | [diff] [blame] | 1168 | dp->d_ops->sf_put_ino(sfp, sfep, |
| 1169 | dp->d_ops->sf_get_ino(oldsfp, oldsfep)); |
| 1170 | dp->d_ops->sf_put_ftype(sfep, dp->d_ops->sf_get_ftype(oldsfep)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | } |
| 1172 | /* |
| 1173 | * Clean up the inode. |
| 1174 | */ |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 1175 | kmem_free(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | dp->i_d.di_size = newsize; |
| 1177 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
| 1178 | } |
| 1179 | #endif /* XFS_BIG_INUMS */ |