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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
1da177e4 | 6 | #include "xfs.h" |
a844f451 | 7 | #include "xfs_fs.h" |
5467b34b | 8 | #include "xfs_shared.h" |
a4fbe6ab | 9 | #include "xfs_format.h" |
239880ef DC |
10 | #include "xfs_log_format.h" |
11 | #include "xfs_trans_resv.h" | |
1da177e4 | 12 | #include "xfs_mount.h" |
1da177e4 | 13 | #include "xfs_inode.h" |
239880ef | 14 | #include "xfs_trans.h" |
2b9ab5ab | 15 | #include "xfs_dir2.h" |
57926640 | 16 | #include "xfs_dir2_priv.h" |
0b1b213f | 17 | #include "xfs_trace.h" |
1da177e4 LT |
18 | |
19 | /* | |
20 | * Prototypes for internal functions. | |
21 | */ | |
22 | static void xfs_dir2_sf_addname_easy(xfs_da_args_t *args, | |
23 | xfs_dir2_sf_entry_t *sfep, | |
24 | xfs_dir2_data_aoff_t offset, | |
25 | int new_isize); | |
26 | static void xfs_dir2_sf_addname_hard(xfs_da_args_t *args, int objchange, | |
27 | int new_isize); | |
28 | static int xfs_dir2_sf_addname_pick(xfs_da_args_t *args, int objchange, | |
29 | xfs_dir2_sf_entry_t **sfepp, | |
30 | xfs_dir2_data_aoff_t *offsetp); | |
31 | #ifdef DEBUG | |
32 | static void xfs_dir2_sf_check(xfs_da_args_t *args); | |
33 | #else | |
34 | #define xfs_dir2_sf_check(args) | |
35 | #endif /* DEBUG */ | |
d5cf09ba | 36 | |
1da177e4 LT |
37 | static void xfs_dir2_sf_toino4(xfs_da_args_t *args); |
38 | static void xfs_dir2_sf_toino8(xfs_da_args_t *args); | |
1da177e4 | 39 | |
af952aeb | 40 | int |
50f6bb6b CH |
41 | xfs_dir2_sf_entsize( |
42 | struct xfs_mount *mp, | |
43 | struct xfs_dir2_sf_hdr *hdr, | |
44 | int len) | |
45 | { | |
46 | int count = len; | |
47 | ||
48 | count += sizeof(struct xfs_dir2_sf_entry); /* namelen + offset */ | |
49 | count += hdr->i8count ? XFS_INO64_SIZE : XFS_INO32_SIZE; /* ino # */ | |
50 | ||
ebd9027d | 51 | if (xfs_has_ftype(mp)) |
50f6bb6b CH |
52 | count += sizeof(uint8_t); |
53 | return count; | |
54 | } | |
55 | ||
56 | struct xfs_dir2_sf_entry * | |
57 | xfs_dir2_sf_nextentry( | |
58 | struct xfs_mount *mp, | |
59 | struct xfs_dir2_sf_hdr *hdr, | |
60 | struct xfs_dir2_sf_entry *sfep) | |
61 | { | |
62 | return (void *)sfep + xfs_dir2_sf_entsize(mp, hdr, sfep->namelen); | |
63 | } | |
64 | ||
93b1e96a CH |
65 | /* |
66 | * In short-form directory entries the inode numbers are stored at variable | |
67 | * offset behind the entry name. If the entry stores a filetype value, then it | |
68 | * sits between the name and the inode number. The actual inode numbers can | |
69 | * come in two formats as well, either 4 bytes or 8 bytes wide. | |
70 | */ | |
71 | xfs_ino_t | |
72 | xfs_dir2_sf_get_ino( | |
73 | struct xfs_mount *mp, | |
74 | struct xfs_dir2_sf_hdr *hdr, | |
75 | struct xfs_dir2_sf_entry *sfep) | |
76 | { | |
77 | uint8_t *from = sfep->name + sfep->namelen; | |
78 | ||
ebd9027d | 79 | if (xfs_has_ftype(mp)) |
93b1e96a CH |
80 | from++; |
81 | ||
82 | if (!hdr->i8count) | |
83 | return get_unaligned_be32(from); | |
84 | return get_unaligned_be64(from) & XFS_MAXINUMBER; | |
85 | } | |
86 | ||
af952aeb | 87 | void |
93b1e96a CH |
88 | xfs_dir2_sf_put_ino( |
89 | struct xfs_mount *mp, | |
90 | struct xfs_dir2_sf_hdr *hdr, | |
91 | struct xfs_dir2_sf_entry *sfep, | |
92 | xfs_ino_t ino) | |
93 | { | |
94 | uint8_t *to = sfep->name + sfep->namelen; | |
95 | ||
96 | ASSERT(ino <= XFS_MAXINUMBER); | |
97 | ||
ebd9027d | 98 | if (xfs_has_ftype(mp)) |
93b1e96a CH |
99 | to++; |
100 | ||
101 | if (hdr->i8count) | |
102 | put_unaligned_be64(ino, to); | |
103 | else | |
104 | put_unaligned_be32(ino, to); | |
105 | } | |
106 | ||
107 | xfs_ino_t | |
108 | xfs_dir2_sf_get_parent_ino( | |
109 | struct xfs_dir2_sf_hdr *hdr) | |
110 | { | |
111 | if (!hdr->i8count) | |
112 | return get_unaligned_be32(hdr->parent); | |
113 | return get_unaligned_be64(hdr->parent) & XFS_MAXINUMBER; | |
114 | } | |
115 | ||
116 | void | |
117 | xfs_dir2_sf_put_parent_ino( | |
118 | struct xfs_dir2_sf_hdr *hdr, | |
119 | xfs_ino_t ino) | |
120 | { | |
121 | ASSERT(ino <= XFS_MAXINUMBER); | |
122 | ||
123 | if (hdr->i8count) | |
124 | put_unaligned_be64(ino, hdr->parent); | |
125 | else | |
126 | put_unaligned_be32(ino, hdr->parent); | |
127 | } | |
128 | ||
4501ed2a CH |
129 | /* |
130 | * The file type field is stored at the end of the name for filetype enabled | |
131 | * shortform directories, or not at all otherwise. | |
132 | */ | |
133 | uint8_t | |
134 | xfs_dir2_sf_get_ftype( | |
135 | struct xfs_mount *mp, | |
136 | struct xfs_dir2_sf_entry *sfep) | |
137 | { | |
ebd9027d | 138 | if (xfs_has_ftype(mp)) { |
4501ed2a CH |
139 | uint8_t ftype = sfep->name[sfep->namelen]; |
140 | ||
141 | if (ftype < XFS_DIR3_FT_MAX) | |
142 | return ftype; | |
143 | } | |
144 | ||
145 | return XFS_DIR3_FT_UNKNOWN; | |
146 | } | |
147 | ||
af952aeb | 148 | void |
4501ed2a CH |
149 | xfs_dir2_sf_put_ftype( |
150 | struct xfs_mount *mp, | |
151 | struct xfs_dir2_sf_entry *sfep, | |
152 | uint8_t ftype) | |
153 | { | |
154 | ASSERT(ftype < XFS_DIR3_FT_MAX); | |
155 | ||
ebd9027d | 156 | if (xfs_has_ftype(mp)) |
4501ed2a CH |
157 | sfep->name[sfep->namelen] = ftype; |
158 | } | |
159 | ||
1da177e4 LT |
160 | /* |
161 | * Given a block directory (dp/block), calculate its size as a shortform (sf) | |
162 | * directory and a header for the sf directory, if it will fit it the | |
163 | * space currently present in the inode. If it won't fit, the output | |
164 | * size is too big (but not accurate). | |
165 | */ | |
166 | int /* size for sf form */ | |
167 | xfs_dir2_block_sfsize( | |
168 | xfs_inode_t *dp, /* incore inode pointer */ | |
4f6ae1a4 | 169 | xfs_dir2_data_hdr_t *hdr, /* block directory data */ |
1da177e4 LT |
170 | xfs_dir2_sf_hdr_t *sfhp) /* output: header for sf form */ |
171 | { | |
172 | xfs_dir2_dataptr_t addr; /* data entry address */ | |
173 | xfs_dir2_leaf_entry_t *blp; /* leaf area of the block */ | |
174 | xfs_dir2_block_tail_t *btp; /* tail area of the block */ | |
175 | int count; /* shortform entry count */ | |
176 | xfs_dir2_data_entry_t *dep; /* data entry in the block */ | |
177 | int i; /* block entry index */ | |
178 | int i8count; /* count of big-inode entries */ | |
179 | int isdot; /* entry is "." */ | |
180 | int isdotdot; /* entry is ".." */ | |
181 | xfs_mount_t *mp; /* mount structure pointer */ | |
182 | int namelen; /* total name bytes */ | |
5bde1ba9 | 183 | xfs_ino_t parent = 0; /* parent inode number */ |
1da177e4 | 184 | int size=0; /* total computed size */ |
0cb97766 | 185 | int has_ftype; |
8f66193c | 186 | struct xfs_da_geometry *geo; |
1da177e4 LT |
187 | |
188 | mp = dp->i_mount; | |
8f66193c | 189 | geo = mp->m_dir_geo; |
1da177e4 | 190 | |
0cb97766 DC |
191 | /* |
192 | * if there is a filetype field, add the extra byte to the namelen | |
193 | * for each entry that we see. | |
194 | */ | |
38c26bfd | 195 | has_ftype = xfs_has_ftype(mp) ? 1 : 0; |
0cb97766 | 196 | |
1da177e4 | 197 | count = i8count = namelen = 0; |
8f66193c | 198 | btp = xfs_dir2_block_tail_p(geo, hdr); |
bbaaf538 | 199 | blp = xfs_dir2_block_leaf_p(btp); |
1da177e4 LT |
200 | |
201 | /* | |
202 | * Iterate over the block's data entries by using the leaf pointers. | |
203 | */ | |
e922fffa | 204 | for (i = 0; i < be32_to_cpu(btp->count); i++) { |
3c1f9c15 | 205 | if ((addr = be32_to_cpu(blp[i].address)) == XFS_DIR2_NULL_DATAPTR) |
1da177e4 LT |
206 | continue; |
207 | /* | |
208 | * Calculate the pointer to the entry at hand. | |
209 | */ | |
30028030 | 210 | dep = (xfs_dir2_data_entry_t *)((char *)hdr + |
8f66193c | 211 | xfs_dir2_dataptr_to_off(geo, addr)); |
1da177e4 LT |
212 | /* |
213 | * Detect . and .., so we can special-case them. | |
214 | * . is not included in sf directories. | |
215 | * .. is included by just the parent inode number. | |
216 | */ | |
217 | isdot = dep->namelen == 1 && dep->name[0] == '.'; | |
218 | isdotdot = | |
219 | dep->namelen == 2 && | |
220 | dep->name[0] == '.' && dep->name[1] == '.'; | |
d5cf09ba | 221 | |
1da177e4 | 222 | if (!isdot) |
ff9901c1 | 223 | i8count += be64_to_cpu(dep->inumber) > XFS_DIR2_MAX_SHORT_INUM; |
d5cf09ba | 224 | |
0cb97766 | 225 | /* take into account the file type field */ |
1da177e4 LT |
226 | if (!isdot && !isdotdot) { |
227 | count++; | |
0cb97766 | 228 | namelen += dep->namelen + has_ftype; |
1da177e4 | 229 | } else if (isdotdot) |
ff9901c1 | 230 | parent = be64_to_cpu(dep->inumber); |
1da177e4 LT |
231 | /* |
232 | * Calculate the new size, see if we should give up yet. | |
233 | */ | |
8353a649 CH |
234 | size = xfs_dir2_sf_hdr_size(i8count) + /* header */ |
235 | count * 3 * sizeof(u8) + /* namelen + offset */ | |
236 | namelen + /* name */ | |
237 | (i8count ? /* inumber */ | |
266b6969 CH |
238 | count * XFS_INO64_SIZE : |
239 | count * XFS_INO32_SIZE); | |
1da177e4 LT |
240 | if (size > XFS_IFORK_DSIZE(dp)) |
241 | return size; /* size value is a failure */ | |
242 | } | |
243 | /* | |
244 | * Create the output header, if it worked. | |
245 | */ | |
246 | sfhp->count = count; | |
247 | sfhp->i8count = i8count; | |
84915e1b | 248 | xfs_dir2_sf_put_parent_ino(sfhp, parent); |
1da177e4 LT |
249 | return size; |
250 | } | |
251 | ||
252 | /* | |
253 | * Convert a block format directory to shortform. | |
254 | * Caller has already checked that it will fit, and built us a header. | |
255 | */ | |
256 | int /* error */ | |
257 | xfs_dir2_block_to_sf( | |
8073af51 | 258 | struct xfs_da_args *args, /* operation arguments */ |
1d9025e5 | 259 | struct xfs_buf *bp, |
1da177e4 | 260 | int size, /* shortform directory size */ |
8073af51 | 261 | struct xfs_dir2_sf_hdr *sfhp) /* shortform directory hdr */ |
1da177e4 | 262 | { |
8073af51 CH |
263 | struct xfs_inode *dp = args->dp; |
264 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 LT |
265 | int error; /* error return value */ |
266 | int logflags; /* inode logging flags */ | |
8073af51 CH |
267 | struct xfs_dir2_sf_entry *sfep; /* shortform entry */ |
268 | struct xfs_dir2_sf_hdr *sfp; /* shortform directory header */ | |
d73e1cee | 269 | unsigned int offset = args->geo->data_entry_offset; |
8073af51 | 270 | unsigned int end; |
1da177e4 | 271 | |
0b1b213f CH |
272 | trace_xfs_dir2_block_to_sf(args); |
273 | ||
1da177e4 | 274 | /* |
8073af51 CH |
275 | * Allocate a temporary destination buffer the size of the inode to |
276 | * format the data into. Once we have formatted the data, we can free | |
277 | * the block and copy the formatted data into the inode literal area. | |
1da177e4 | 278 | */ |
8073af51 | 279 | sfp = kmem_alloc(mp->m_sb.sb_inodesize, 0); |
bbaaf538 | 280 | memcpy(sfp, sfhp, xfs_dir2_sf_hdr_size(sfhp->i8count)); |
b3f03bac | 281 | |
1da177e4 | 282 | /* |
8073af51 CH |
283 | * Loop over the active and unused entries. Stop when we reach the |
284 | * leaf/tail portion of the block. | |
1da177e4 | 285 | */ |
5c072127 | 286 | end = xfs_dir3_data_end_offset(args->geo, bp->b_addr); |
bbaaf538 | 287 | sfep = xfs_dir2_sf_firstentry(sfp); |
8073af51 CH |
288 | while (offset < end) { |
289 | struct xfs_dir2_data_unused *dup = bp->b_addr + offset; | |
290 | struct xfs_dir2_data_entry *dep = bp->b_addr + offset; | |
291 | ||
1da177e4 LT |
292 | /* |
293 | * If it's unused, just skip over it. | |
294 | */ | |
ad354eb3 | 295 | if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) { |
8073af51 | 296 | offset += be16_to_cpu(dup->length); |
1da177e4 LT |
297 | continue; |
298 | } | |
8073af51 | 299 | |
1da177e4 LT |
300 | /* |
301 | * Skip . | |
302 | */ | |
303 | if (dep->namelen == 1 && dep->name[0] == '.') | |
ff9901c1 | 304 | ASSERT(be64_to_cpu(dep->inumber) == dp->i_ino); |
1da177e4 LT |
305 | /* |
306 | * Skip .., but make sure the inode number is right. | |
307 | */ | |
308 | else if (dep->namelen == 2 && | |
309 | dep->name[0] == '.' && dep->name[1] == '.') | |
ff9901c1 | 310 | ASSERT(be64_to_cpu(dep->inumber) == |
84915e1b | 311 | xfs_dir2_sf_get_parent_ino(sfp)); |
1da177e4 LT |
312 | /* |
313 | * Normal entry, copy it into shortform. | |
314 | */ | |
315 | else { | |
316 | sfep->namelen = dep->namelen; | |
8073af51 | 317 | xfs_dir2_sf_put_offset(sfep, offset); |
1da177e4 | 318 | memcpy(sfep->name, dep->name, dep->namelen); |
93b1e96a | 319 | xfs_dir2_sf_put_ino(mp, sfp, sfep, |
4740175e | 320 | be64_to_cpu(dep->inumber)); |
4501ed2a | 321 | xfs_dir2_sf_put_ftype(mp, sfep, |
59b8b465 | 322 | xfs_dir2_data_get_ftype(mp, dep)); |
8bc38787 | 323 | |
50f6bb6b | 324 | sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); |
1da177e4 | 325 | } |
fdbb8c5b | 326 | offset += xfs_dir2_data_entsize(mp, dep->namelen); |
1da177e4 LT |
327 | } |
328 | ASSERT((char *)sfep - (char *)sfp == size); | |
b3f03bac DC |
329 | |
330 | /* now we are done with the block, we can shrink the inode */ | |
331 | logflags = XFS_ILOG_CORE; | |
7dda6e86 | 332 | error = xfs_dir2_shrink_inode(args, args->geo->datablk, bp); |
b3f03bac | 333 | if (error) { |
2451337d | 334 | ASSERT(error != -ENOSPC); |
b3f03bac DC |
335 | goto out; |
336 | } | |
337 | ||
338 | /* | |
339 | * The buffer is now unconditionally gone, whether | |
340 | * xfs_dir2_shrink_inode worked or not. | |
341 | * | |
342 | * Convert the inode to local format and copy the data in. | |
343 | */ | |
b3f03bac | 344 | ASSERT(dp->i_df.if_bytes == 0); |
8073af51 | 345 | xfs_init_local_fork(dp, XFS_DATA_FORK, sfp, size); |
f7e67b20 | 346 | dp->i_df.if_format = XFS_DINODE_FMT_LOCAL; |
13d2c10b | 347 | dp->i_disk_size = size; |
b3f03bac DC |
348 | |
349 | logflags |= XFS_ILOG_DDATA; | |
1da177e4 LT |
350 | xfs_dir2_sf_check(args); |
351 | out: | |
352 | xfs_trans_log_inode(args->trans, dp, logflags); | |
8073af51 | 353 | kmem_free(sfp); |
1da177e4 LT |
354 | return error; |
355 | } | |
356 | ||
357 | /* | |
358 | * Add a name to a shortform directory. | |
359 | * There are two algorithms, "easy" and "hard" which we decide on | |
360 | * before changing anything. | |
361 | * Convert to block form if necessary, if the new entry won't fit. | |
362 | */ | |
363 | int /* error */ | |
364 | xfs_dir2_sf_addname( | |
365 | xfs_da_args_t *args) /* operation arguments */ | |
366 | { | |
1da177e4 LT |
367 | xfs_inode_t *dp; /* incore directory inode */ |
368 | int error; /* error return value */ | |
369 | int incr_isize; /* total change in size */ | |
13d2c10b | 370 | int new_isize; /* size after adding name */ |
1da177e4 | 371 | int objchange; /* changing to 8-byte inodes */ |
5bde1ba9 | 372 | xfs_dir2_data_aoff_t offset = 0; /* offset for new entry */ |
1da177e4 | 373 | int pick; /* which algorithm to use */ |
ac8ba50f | 374 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
5bde1ba9 | 375 | xfs_dir2_sf_entry_t *sfep = NULL; /* shortform entry */ |
1da177e4 | 376 | |
0b1b213f CH |
377 | trace_xfs_dir2_sf_addname(args); |
378 | ||
2451337d | 379 | ASSERT(xfs_dir2_sf_lookup(args) == -ENOENT); |
1da177e4 | 380 | dp = args->dp; |
0779f4a6 | 381 | ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); |
13d2c10b CH |
382 | ASSERT(dp->i_disk_size >= offsetof(struct xfs_dir2_sf_hdr, parent)); |
383 | ASSERT(dp->i_df.if_bytes == dp->i_disk_size); | |
1da177e4 | 384 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
ac8ba50f | 385 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
13d2c10b | 386 | ASSERT(dp->i_disk_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
1da177e4 LT |
387 | /* |
388 | * Compute entry (and change in) size. | |
389 | */ | |
50f6bb6b | 390 | incr_isize = xfs_dir2_sf_entsize(dp->i_mount, sfp, args->namelen); |
1da177e4 | 391 | objchange = 0; |
d5cf09ba | 392 | |
1da177e4 LT |
393 | /* |
394 | * Do we have to change to 8 byte inodes? | |
395 | */ | |
ac8ba50f | 396 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { |
1da177e4 | 397 | /* |
5e06d148 | 398 | * Yes, adjust the inode size. old count + (parent + new) |
1da177e4 | 399 | */ |
266b6969 | 400 | incr_isize += (sfp->count + 2) * XFS_INO64_DIFF; |
1da177e4 LT |
401 | objchange = 1; |
402 | } | |
d5cf09ba | 403 | |
13d2c10b | 404 | new_isize = (int)dp->i_disk_size + incr_isize; |
1da177e4 LT |
405 | /* |
406 | * Won't fit as shortform any more (due to size), | |
407 | * or the pick routine says it won't (due to offset values). | |
408 | */ | |
409 | if (new_isize > XFS_IFORK_DSIZE(dp) || | |
410 | (pick = | |
411 | xfs_dir2_sf_addname_pick(args, objchange, &sfep, &offset)) == 0) { | |
412 | /* | |
413 | * Just checking or no space reservation, it doesn't fit. | |
414 | */ | |
6a178100 | 415 | if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0) |
2451337d | 416 | return -ENOSPC; |
1da177e4 LT |
417 | /* |
418 | * Convert to block form then add the name. | |
419 | */ | |
420 | error = xfs_dir2_sf_to_block(args); | |
421 | if (error) | |
422 | return error; | |
423 | return xfs_dir2_block_addname(args); | |
424 | } | |
425 | /* | |
426 | * Just checking, it fits. | |
427 | */ | |
6a178100 | 428 | if (args->op_flags & XFS_DA_OP_JUSTCHECK) |
1da177e4 LT |
429 | return 0; |
430 | /* | |
431 | * Do it the easy way - just add it at the end. | |
432 | */ | |
433 | if (pick == 1) | |
434 | xfs_dir2_sf_addname_easy(args, sfep, offset, new_isize); | |
435 | /* | |
436 | * Do it the hard way - look for a place to insert the new entry. | |
437 | * Convert to 8 byte inode numbers first if necessary. | |
438 | */ | |
439 | else { | |
440 | ASSERT(pick == 2); | |
1da177e4 LT |
441 | if (objchange) |
442 | xfs_dir2_sf_toino8(args); | |
1da177e4 LT |
443 | xfs_dir2_sf_addname_hard(args, objchange, new_isize); |
444 | } | |
445 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); | |
446 | return 0; | |
447 | } | |
448 | ||
449 | /* | |
450 | * Add the new entry the "easy" way. | |
451 | * This is copying the old directory and adding the new entry at the end. | |
452 | * Since it's sorted by "offset" we need room after the last offset | |
453 | * that's already there, and then room to convert to a block directory. | |
454 | * This is already checked by the pick routine. | |
455 | */ | |
456 | static void | |
457 | xfs_dir2_sf_addname_easy( | |
458 | xfs_da_args_t *args, /* operation arguments */ | |
459 | xfs_dir2_sf_entry_t *sfep, /* pointer to new entry */ | |
460 | xfs_dir2_data_aoff_t offset, /* offset to use for new ent */ | |
461 | int new_isize) /* new directory size */ | |
462 | { | |
50f6bb6b CH |
463 | struct xfs_inode *dp = args->dp; |
464 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 | 465 | int byteoff; /* byte offset in sf dir */ |
ac8ba50f | 466 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
1da177e4 | 467 | |
ac8ba50f | 468 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1da177e4 LT |
469 | byteoff = (int)((char *)sfep - (char *)sfp); |
470 | /* | |
471 | * Grow the in-inode space. | |
472 | */ | |
50f6bb6b | 473 | xfs_idata_realloc(dp, xfs_dir2_sf_entsize(mp, sfp, args->namelen), |
0cb97766 | 474 | XFS_DATA_FORK); |
1da177e4 LT |
475 | /* |
476 | * Need to set up again due to realloc of the inode data. | |
477 | */ | |
ac8ba50f | 478 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1da177e4 LT |
479 | sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + byteoff); |
480 | /* | |
481 | * Fill in the new entry. | |
482 | */ | |
483 | sfep->namelen = args->namelen; | |
bbaaf538 | 484 | xfs_dir2_sf_put_offset(sfep, offset); |
1da177e4 | 485 | memcpy(sfep->name, args->name, sfep->namelen); |
93b1e96a | 486 | xfs_dir2_sf_put_ino(mp, sfp, sfep, args->inumber); |
4501ed2a | 487 | xfs_dir2_sf_put_ftype(mp, sfep, args->filetype); |
1c55cece | 488 | |
1da177e4 LT |
489 | /* |
490 | * Update the header and inode. | |
491 | */ | |
ac8ba50f | 492 | sfp->count++; |
1da177e4 | 493 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) |
ac8ba50f | 494 | sfp->i8count++; |
13d2c10b | 495 | dp->i_disk_size = new_isize; |
1da177e4 LT |
496 | xfs_dir2_sf_check(args); |
497 | } | |
498 | ||
499 | /* | |
500 | * Add the new entry the "hard" way. | |
501 | * The caller has already converted to 8 byte inode numbers if necessary, | |
502 | * in which case we need to leave the i8count at 1. | |
503 | * Find a hole that the new entry will fit into, and copy | |
504 | * the first part of the entries, the new entry, and the last part of | |
505 | * the entries. | |
506 | */ | |
507 | /* ARGSUSED */ | |
508 | static void | |
509 | xfs_dir2_sf_addname_hard( | |
510 | xfs_da_args_t *args, /* operation arguments */ | |
511 | int objchange, /* changing inode number size */ | |
512 | int new_isize) /* new directory size */ | |
513 | { | |
50f6bb6b CH |
514 | struct xfs_inode *dp = args->dp; |
515 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 LT |
516 | int add_datasize; /* data size need for new ent */ |
517 | char *buf; /* buffer for old */ | |
1da177e4 LT |
518 | int eof; /* reached end of old dir */ |
519 | int nbytes; /* temp for byte copies */ | |
520 | xfs_dir2_data_aoff_t new_offset; /* next offset value */ | |
521 | xfs_dir2_data_aoff_t offset; /* current offset value */ | |
13d2c10b | 522 | int old_isize; /* previous size */ |
1da177e4 | 523 | xfs_dir2_sf_entry_t *oldsfep; /* entry in original dir */ |
ac8ba50f | 524 | xfs_dir2_sf_hdr_t *oldsfp; /* original shortform dir */ |
1da177e4 | 525 | xfs_dir2_sf_entry_t *sfep; /* entry in new dir */ |
ac8ba50f | 526 | xfs_dir2_sf_hdr_t *sfp; /* new shortform dir */ |
1da177e4 LT |
527 | |
528 | /* | |
529 | * Copy the old directory to the stack buffer. | |
530 | */ | |
ac8ba50f | 531 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
13d2c10b | 532 | old_isize = (int)dp->i_disk_size; |
707e0dda | 533 | buf = kmem_alloc(old_isize, 0); |
ac8ba50f | 534 | oldsfp = (xfs_dir2_sf_hdr_t *)buf; |
1da177e4 LT |
535 | memcpy(oldsfp, sfp, old_isize); |
536 | /* | |
537 | * Loop over the old directory finding the place we're going | |
538 | * to insert the new entry. | |
539 | * If it's going to end up at the end then oldsfep will point there. | |
540 | */ | |
d73e1cee | 541 | for (offset = args->geo->data_first_offset, |
bbaaf538 | 542 | oldsfep = xfs_dir2_sf_firstentry(oldsfp), |
fdbb8c5b | 543 | add_datasize = xfs_dir2_data_entsize(mp, args->namelen), |
1da177e4 LT |
544 | eof = (char *)oldsfep == &buf[old_isize]; |
545 | !eof; | |
fdbb8c5b | 546 | offset = new_offset + xfs_dir2_data_entsize(mp, oldsfep->namelen), |
50f6bb6b | 547 | oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep), |
1da177e4 | 548 | eof = (char *)oldsfep == &buf[old_isize]) { |
bbaaf538 | 549 | new_offset = xfs_dir2_sf_get_offset(oldsfep); |
1da177e4 LT |
550 | if (offset + add_datasize <= new_offset) |
551 | break; | |
552 | } | |
553 | /* | |
554 | * Get rid of the old directory, then allocate space for | |
555 | * the new one. We do this so xfs_idata_realloc won't copy | |
556 | * the data. | |
557 | */ | |
558 | xfs_idata_realloc(dp, -old_isize, XFS_DATA_FORK); | |
559 | xfs_idata_realloc(dp, new_isize, XFS_DATA_FORK); | |
560 | /* | |
561 | * Reset the pointer since the buffer was reallocated. | |
562 | */ | |
ac8ba50f | 563 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1da177e4 LT |
564 | /* |
565 | * Copy the first part of the directory, including the header. | |
566 | */ | |
567 | nbytes = (int)((char *)oldsfep - (char *)oldsfp); | |
568 | memcpy(sfp, oldsfp, nbytes); | |
569 | sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + nbytes); | |
570 | /* | |
571 | * Fill in the new entry, and update the header counts. | |
572 | */ | |
573 | sfep->namelen = args->namelen; | |
bbaaf538 | 574 | xfs_dir2_sf_put_offset(sfep, offset); |
1da177e4 | 575 | memcpy(sfep->name, args->name, sfep->namelen); |
93b1e96a | 576 | xfs_dir2_sf_put_ino(mp, sfp, sfep, args->inumber); |
4501ed2a | 577 | xfs_dir2_sf_put_ftype(mp, sfep, args->filetype); |
ac8ba50f | 578 | sfp->count++; |
1da177e4 | 579 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange) |
ac8ba50f | 580 | sfp->i8count++; |
1da177e4 LT |
581 | /* |
582 | * If there's more left to copy, do that. | |
583 | */ | |
584 | if (!eof) { | |
50f6bb6b | 585 | sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); |
1da177e4 LT |
586 | memcpy(sfep, oldsfep, old_isize - nbytes); |
587 | } | |
f0e2d93c | 588 | kmem_free(buf); |
13d2c10b | 589 | dp->i_disk_size = new_isize; |
1da177e4 LT |
590 | xfs_dir2_sf_check(args); |
591 | } | |
592 | ||
593 | /* | |
594 | * Decide if the new entry will fit at all. | |
595 | * If it will fit, pick between adding the new entry to the end (easy) | |
596 | * or somewhere else (hard). | |
597 | * Return 0 (won't fit), 1 (easy), 2 (hard). | |
598 | */ | |
599 | /*ARGSUSED*/ | |
600 | static int /* pick result */ | |
601 | xfs_dir2_sf_addname_pick( | |
602 | xfs_da_args_t *args, /* operation arguments */ | |
603 | int objchange, /* inode # size changes */ | |
604 | xfs_dir2_sf_entry_t **sfepp, /* out(1): new entry ptr */ | |
605 | xfs_dir2_data_aoff_t *offsetp) /* out(1): new offset */ | |
606 | { | |
50f6bb6b CH |
607 | struct xfs_inode *dp = args->dp; |
608 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 LT |
609 | int holefit; /* found hole it will fit in */ |
610 | int i; /* entry number */ | |
1da177e4 LT |
611 | xfs_dir2_data_aoff_t offset; /* data block offset */ |
612 | xfs_dir2_sf_entry_t *sfep; /* shortform entry */ | |
ac8ba50f | 613 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
1da177e4 LT |
614 | int size; /* entry's data size */ |
615 | int used; /* data bytes used */ | |
616 | ||
ac8ba50f | 617 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
fdbb8c5b | 618 | size = xfs_dir2_data_entsize(mp, args->namelen); |
d73e1cee | 619 | offset = args->geo->data_first_offset; |
bbaaf538 | 620 | sfep = xfs_dir2_sf_firstentry(sfp); |
1da177e4 LT |
621 | holefit = 0; |
622 | /* | |
623 | * Loop over sf entries. | |
624 | * Keep track of data offset and whether we've seen a place | |
625 | * to insert the new entry. | |
626 | */ | |
ac8ba50f | 627 | for (i = 0; i < sfp->count; i++) { |
1da177e4 | 628 | if (!holefit) |
bbaaf538 CH |
629 | holefit = offset + size <= xfs_dir2_sf_get_offset(sfep); |
630 | offset = xfs_dir2_sf_get_offset(sfep) + | |
fdbb8c5b | 631 | xfs_dir2_data_entsize(mp, sfep->namelen); |
50f6bb6b | 632 | sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); |
1da177e4 LT |
633 | } |
634 | /* | |
635 | * Calculate data bytes used excluding the new entry, if this | |
636 | * was a data block (block form directory). | |
637 | */ | |
638 | used = offset + | |
ac8ba50f | 639 | (sfp->count + 3) * (uint)sizeof(xfs_dir2_leaf_entry_t) + |
1da177e4 LT |
640 | (uint)sizeof(xfs_dir2_block_tail_t); |
641 | /* | |
642 | * If it won't fit in a block form then we can't insert it, | |
643 | * we'll go back, convert to block, then try the insert and convert | |
644 | * to leaf. | |
645 | */ | |
8f66193c | 646 | if (used + (holefit ? 0 : size) > args->geo->blksize) |
1da177e4 LT |
647 | return 0; |
648 | /* | |
649 | * If changing the inode number size, do it the hard way. | |
650 | */ | |
d5cf09ba | 651 | if (objchange) |
1da177e4 | 652 | return 2; |
1da177e4 LT |
653 | /* |
654 | * If it won't fit at the end then do it the hard way (use the hole). | |
655 | */ | |
8f66193c | 656 | if (used + size > args->geo->blksize) |
1da177e4 LT |
657 | return 2; |
658 | /* | |
659 | * Do it the easy way. | |
660 | */ | |
661 | *sfepp = sfep; | |
662 | *offsetp = offset; | |
663 | return 1; | |
664 | } | |
665 | ||
666 | #ifdef DEBUG | |
667 | /* | |
668 | * Check consistency of shortform directory, assert if bad. | |
669 | */ | |
670 | static void | |
671 | xfs_dir2_sf_check( | |
672 | xfs_da_args_t *args) /* operation arguments */ | |
673 | { | |
4501ed2a CH |
674 | struct xfs_inode *dp = args->dp; |
675 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 LT |
676 | int i; /* entry number */ |
677 | int i8count; /* number of big inode#s */ | |
678 | xfs_ino_t ino; /* entry inode number */ | |
679 | int offset; /* data offset */ | |
680 | xfs_dir2_sf_entry_t *sfep; /* shortform dir entry */ | |
ac8ba50f | 681 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
1da177e4 | 682 | |
ac8ba50f | 683 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
d73e1cee | 684 | offset = args->geo->data_first_offset; |
84915e1b | 685 | ino = xfs_dir2_sf_get_parent_ino(sfp); |
1da177e4 LT |
686 | i8count = ino > XFS_DIR2_MAX_SHORT_INUM; |
687 | ||
bbaaf538 | 688 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); |
ac8ba50f | 689 | i < sfp->count; |
4501ed2a | 690 | i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { |
bbaaf538 | 691 | ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset); |
4501ed2a | 692 | ino = xfs_dir2_sf_get_ino(mp, sfp, sfep); |
1da177e4 LT |
693 | i8count += ino > XFS_DIR2_MAX_SHORT_INUM; |
694 | offset = | |
bbaaf538 | 695 | xfs_dir2_sf_get_offset(sfep) + |
fdbb8c5b | 696 | xfs_dir2_data_entsize(mp, sfep->namelen); |
4501ed2a | 697 | ASSERT(xfs_dir2_sf_get_ftype(mp, sfep) < XFS_DIR3_FT_MAX); |
1da177e4 | 698 | } |
ac8ba50f | 699 | ASSERT(i8count == sfp->i8count); |
13d2c10b | 700 | ASSERT((char *)sfep - (char *)sfp == dp->i_disk_size); |
1da177e4 | 701 | ASSERT(offset + |
ac8ba50f | 702 | (sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) + |
8f66193c | 703 | (uint)sizeof(xfs_dir2_block_tail_t) <= args->geo->blksize); |
1da177e4 LT |
704 | } |
705 | #endif /* DEBUG */ | |
706 | ||
630a04e7 | 707 | /* Verify the consistency of an inline directory. */ |
dc042c2d | 708 | xfs_failaddr_t |
630a04e7 | 709 | xfs_dir2_sf_verify( |
78420281 | 710 | struct xfs_inode *ip) |
630a04e7 | 711 | { |
78420281 | 712 | struct xfs_mount *mp = ip->i_mount; |
f7e67b20 | 713 | struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); |
78420281 | 714 | struct xfs_dir2_sf_hdr *sfp; |
630a04e7 DW |
715 | struct xfs_dir2_sf_entry *sfep; |
716 | struct xfs_dir2_sf_entry *next_sfep; | |
717 | char *endp; | |
630a04e7 DW |
718 | xfs_ino_t ino; |
719 | int i; | |
720 | int i8count; | |
721 | int offset; | |
3f8a4f1d | 722 | int64_t size; |
78420281 | 723 | int error; |
c8ce540d | 724 | uint8_t filetype; |
630a04e7 | 725 | |
f7e67b20 | 726 | ASSERT(ifp->if_format == XFS_DINODE_FMT_LOCAL); |
630a04e7 | 727 | |
78420281 DW |
728 | sfp = (struct xfs_dir2_sf_hdr *)ifp->if_u1.if_data; |
729 | size = ifp->if_bytes; | |
730 | ||
630a04e7 DW |
731 | /* |
732 | * Give up if the directory is way too short. | |
733 | */ | |
78420281 DW |
734 | if (size <= offsetof(struct xfs_dir2_sf_hdr, parent) || |
735 | size < xfs_dir2_sf_hdr_size(sfp->i8count)) | |
dc042c2d | 736 | return __this_address; |
630a04e7 DW |
737 | |
738 | endp = (char *)sfp + size; | |
739 | ||
740 | /* Check .. entry */ | |
84915e1b | 741 | ino = xfs_dir2_sf_get_parent_ino(sfp); |
630a04e7 | 742 | i8count = ino > XFS_DIR2_MAX_SHORT_INUM; |
78420281 DW |
743 | error = xfs_dir_ino_validate(mp, ino); |
744 | if (error) | |
dc042c2d | 745 | return __this_address; |
d73e1cee | 746 | offset = mp->m_dir_geo->data_first_offset; |
630a04e7 DW |
747 | |
748 | /* Check all reported entries */ | |
749 | sfep = xfs_dir2_sf_firstentry(sfp); | |
750 | for (i = 0; i < sfp->count; i++) { | |
751 | /* | |
752 | * struct xfs_dir2_sf_entry has a variable length. | |
753 | * Check the fixed-offset parts of the structure are | |
754 | * within the data buffer. | |
755 | */ | |
78420281 | 756 | if (((char *)sfep + sizeof(*sfep)) >= endp) |
dc042c2d | 757 | return __this_address; |
630a04e7 DW |
758 | |
759 | /* Don't allow names with known bad length. */ | |
78420281 | 760 | if (sfep->namelen == 0) |
dc042c2d | 761 | return __this_address; |
630a04e7 DW |
762 | |
763 | /* | |
764 | * Check that the variable-length part of the structure is | |
765 | * within the data buffer. The next entry starts after the | |
766 | * name component, so nextentry is an acceptable test. | |
767 | */ | |
50f6bb6b | 768 | next_sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); |
78420281 | 769 | if (endp < (char *)next_sfep) |
dc042c2d | 770 | return __this_address; |
630a04e7 DW |
771 | |
772 | /* Check that the offsets always increase. */ | |
78420281 | 773 | if (xfs_dir2_sf_get_offset(sfep) < offset) |
dc042c2d | 774 | return __this_address; |
630a04e7 DW |
775 | |
776 | /* Check the inode number. */ | |
93b1e96a | 777 | ino = xfs_dir2_sf_get_ino(mp, sfp, sfep); |
630a04e7 | 778 | i8count += ino > XFS_DIR2_MAX_SHORT_INUM; |
78420281 DW |
779 | error = xfs_dir_ino_validate(mp, ino); |
780 | if (error) | |
dc042c2d | 781 | return __this_address; |
630a04e7 DW |
782 | |
783 | /* Check the file type. */ | |
4501ed2a | 784 | filetype = xfs_dir2_sf_get_ftype(mp, sfep); |
78420281 | 785 | if (filetype >= XFS_DIR3_FT_MAX) |
dc042c2d | 786 | return __this_address; |
630a04e7 DW |
787 | |
788 | offset = xfs_dir2_sf_get_offset(sfep) + | |
fdbb8c5b | 789 | xfs_dir2_data_entsize(mp, sfep->namelen); |
630a04e7 DW |
790 | |
791 | sfep = next_sfep; | |
792 | } | |
78420281 | 793 | if (i8count != sfp->i8count) |
dc042c2d | 794 | return __this_address; |
78420281 | 795 | if ((void *)sfep != (void *)endp) |
dc042c2d | 796 | return __this_address; |
630a04e7 DW |
797 | |
798 | /* Make sure this whole thing ought to be in local format. */ | |
78420281 DW |
799 | if (offset + (sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) + |
800 | (uint)sizeof(xfs_dir2_block_tail_t) > mp->m_dir_geo->blksize) | |
dc042c2d | 801 | return __this_address; |
630a04e7 | 802 | |
dc042c2d | 803 | return NULL; |
630a04e7 DW |
804 | } |
805 | ||
1da177e4 LT |
806 | /* |
807 | * Create a new (shortform) directory. | |
808 | */ | |
809 | int /* error, always 0 */ | |
810 | xfs_dir2_sf_create( | |
811 | xfs_da_args_t *args, /* operation arguments */ | |
812 | xfs_ino_t pino) /* parent inode number */ | |
813 | { | |
814 | xfs_inode_t *dp; /* incore directory inode */ | |
815 | int i8count; /* parent inode is an 8-byte number */ | |
ac8ba50f | 816 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
1da177e4 LT |
817 | int size; /* directory size */ |
818 | ||
0b1b213f CH |
819 | trace_xfs_dir2_sf_create(args); |
820 | ||
1da177e4 LT |
821 | dp = args->dp; |
822 | ||
823 | ASSERT(dp != NULL); | |
13d2c10b | 824 | ASSERT(dp->i_disk_size == 0); |
1da177e4 LT |
825 | /* |
826 | * If it's currently a zero-length extent file, | |
827 | * convert it to local format. | |
828 | */ | |
f7e67b20 | 829 | if (dp->i_df.if_format == XFS_DINODE_FMT_EXTENTS) { |
f7e67b20 | 830 | dp->i_df.if_format = XFS_DINODE_FMT_LOCAL; |
1da177e4 | 831 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE); |
1da177e4 | 832 | } |
0779f4a6 | 833 | ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); |
1da177e4 LT |
834 | ASSERT(dp->i_df.if_bytes == 0); |
835 | i8count = pino > XFS_DIR2_MAX_SHORT_INUM; | |
bbaaf538 | 836 | size = xfs_dir2_sf_hdr_size(i8count); |
1da177e4 LT |
837 | /* |
838 | * Make a buffer for the data. | |
839 | */ | |
840 | xfs_idata_realloc(dp, size, XFS_DATA_FORK); | |
841 | /* | |
842 | * Fill in the header, | |
843 | */ | |
ac8ba50f CH |
844 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
845 | sfp->i8count = i8count; | |
1da177e4 LT |
846 | /* |
847 | * Now can put in the inode number, since i8count is set. | |
848 | */ | |
84915e1b | 849 | xfs_dir2_sf_put_parent_ino(sfp, pino); |
ac8ba50f | 850 | sfp->count = 0; |
13d2c10b | 851 | dp->i_disk_size = size; |
1da177e4 LT |
852 | xfs_dir2_sf_check(args); |
853 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); | |
854 | return 0; | |
855 | } | |
856 | ||
1da177e4 LT |
857 | /* |
858 | * Lookup an entry in a shortform directory. | |
859 | * Returns EEXIST if found, ENOENT if not found. | |
860 | */ | |
861 | int /* error */ | |
862 | xfs_dir2_sf_lookup( | |
863 | xfs_da_args_t *args) /* operation arguments */ | |
864 | { | |
50f6bb6b CH |
865 | struct xfs_inode *dp = args->dp; |
866 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 | 867 | int i; /* entry index */ |
384f3ced | 868 | int error; |
1da177e4 | 869 | xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ |
ac8ba50f | 870 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
5163f95a | 871 | enum xfs_dacmp cmp; /* comparison result */ |
384f3ced | 872 | xfs_dir2_sf_entry_t *ci_sfep; /* case-insens. entry */ |
1da177e4 | 873 | |
0b1b213f CH |
874 | trace_xfs_dir2_sf_lookup(args); |
875 | ||
1da177e4 | 876 | xfs_dir2_sf_check(args); |
1da177e4 | 877 | |
0779f4a6 | 878 | ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); |
13d2c10b CH |
879 | ASSERT(dp->i_disk_size >= offsetof(struct xfs_dir2_sf_hdr, parent)); |
880 | ASSERT(dp->i_df.if_bytes == dp->i_disk_size); | |
1da177e4 | 881 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
ac8ba50f | 882 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
13d2c10b | 883 | ASSERT(dp->i_disk_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
1da177e4 LT |
884 | /* |
885 | * Special case for . | |
886 | */ | |
887 | if (args->namelen == 1 && args->name[0] == '.') { | |
888 | args->inumber = dp->i_ino; | |
5163f95a | 889 | args->cmpresult = XFS_CMP_EXACT; |
1c55cece | 890 | args->filetype = XFS_DIR3_FT_DIR; |
2451337d | 891 | return -EEXIST; |
1da177e4 LT |
892 | } |
893 | /* | |
894 | * Special case for .. | |
895 | */ | |
896 | if (args->namelen == 2 && | |
897 | args->name[0] == '.' && args->name[1] == '.') { | |
84915e1b | 898 | args->inumber = xfs_dir2_sf_get_parent_ino(sfp); |
5163f95a | 899 | args->cmpresult = XFS_CMP_EXACT; |
1c55cece | 900 | args->filetype = XFS_DIR3_FT_DIR; |
2451337d | 901 | return -EEXIST; |
1da177e4 LT |
902 | } |
903 | /* | |
904 | * Loop over all the entries trying to match ours. | |
905 | */ | |
384f3ced | 906 | ci_sfep = NULL; |
ac8ba50f | 907 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; |
50f6bb6b | 908 | i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { |
5163f95a BN |
909 | /* |
910 | * Compare name and if it's an exact match, return the inode | |
911 | * number. If it's the first case-insensitive match, store the | |
912 | * inode number and continue looking for an exact match. | |
913 | */ | |
d8d11fc7 | 914 | cmp = xfs_dir2_compname(args, sfep->name, sfep->namelen); |
5163f95a BN |
915 | if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { |
916 | args->cmpresult = cmp; | |
93b1e96a | 917 | args->inumber = xfs_dir2_sf_get_ino(mp, sfp, sfep); |
4501ed2a | 918 | args->filetype = xfs_dir2_sf_get_ftype(mp, sfep); |
5163f95a | 919 | if (cmp == XFS_CMP_EXACT) |
2451337d | 920 | return -EEXIST; |
384f3ced | 921 | ci_sfep = sfep; |
1da177e4 LT |
922 | } |
923 | } | |
6a178100 | 924 | ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); |
5163f95a BN |
925 | /* |
926 | * Here, we can only be doing a lookup (not a rename or replace). | |
2451337d | 927 | * If a case-insensitive match was not found, return -ENOENT. |
5163f95a | 928 | */ |
384f3ced | 929 | if (!ci_sfep) |
2451337d | 930 | return -ENOENT; |
384f3ced BN |
931 | /* otherwise process the CI match as required by the caller */ |
932 | error = xfs_dir_cilookup_result(args, ci_sfep->name, ci_sfep->namelen); | |
b474c7ae | 933 | return error; |
1da177e4 LT |
934 | } |
935 | ||
936 | /* | |
937 | * Remove an entry from a shortform directory. | |
938 | */ | |
939 | int /* error */ | |
940 | xfs_dir2_sf_removename( | |
941 | xfs_da_args_t *args) | |
942 | { | |
50f6bb6b CH |
943 | struct xfs_inode *dp = args->dp; |
944 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 | 945 | int byteoff; /* offset of removed entry */ |
1da177e4 LT |
946 | int entsize; /* this entry's size */ |
947 | int i; /* shortform entry index */ | |
948 | int newsize; /* new inode size */ | |
949 | int oldsize; /* old inode size */ | |
950 | xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ | |
ac8ba50f | 951 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
1da177e4 | 952 | |
0b1b213f CH |
953 | trace_xfs_dir2_sf_removename(args); |
954 | ||
0779f4a6 | 955 | ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); |
13d2c10b | 956 | oldsize = (int)dp->i_disk_size; |
e91ec882 | 957 | ASSERT(oldsize >= offsetof(struct xfs_dir2_sf_hdr, parent)); |
1da177e4 LT |
958 | ASSERT(dp->i_df.if_bytes == oldsize); |
959 | ASSERT(dp->i_df.if_u1.if_data != NULL); | |
ac8ba50f CH |
960 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
961 | ASSERT(oldsize >= xfs_dir2_sf_hdr_size(sfp->i8count)); | |
1da177e4 LT |
962 | /* |
963 | * Loop over the old directory entries. | |
964 | * Find the one we're deleting. | |
965 | */ | |
ac8ba50f | 966 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; |
50f6bb6b | 967 | i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { |
5163f95a BN |
968 | if (xfs_da_compname(args, sfep->name, sfep->namelen) == |
969 | XFS_CMP_EXACT) { | |
93b1e96a | 970 | ASSERT(xfs_dir2_sf_get_ino(mp, sfp, sfep) == |
8bc38787 | 971 | args->inumber); |
1da177e4 LT |
972 | break; |
973 | } | |
974 | } | |
975 | /* | |
976 | * Didn't find it. | |
977 | */ | |
ac8ba50f | 978 | if (i == sfp->count) |
2451337d | 979 | return -ENOENT; |
1da177e4 LT |
980 | /* |
981 | * Calculate sizes. | |
982 | */ | |
983 | byteoff = (int)((char *)sfep - (char *)sfp); | |
50f6bb6b | 984 | entsize = xfs_dir2_sf_entsize(mp, sfp, args->namelen); |
1da177e4 LT |
985 | newsize = oldsize - entsize; |
986 | /* | |
987 | * Copy the part if any after the removed entry, sliding it down. | |
988 | */ | |
989 | if (byteoff + entsize < oldsize) | |
990 | memmove((char *)sfp + byteoff, (char *)sfp + byteoff + entsize, | |
991 | oldsize - (byteoff + entsize)); | |
992 | /* | |
993 | * Fix up the header and file size. | |
994 | */ | |
ac8ba50f | 995 | sfp->count--; |
13d2c10b | 996 | dp->i_disk_size = newsize; |
1da177e4 LT |
997 | /* |
998 | * Reallocate, making it smaller. | |
999 | */ | |
1000 | xfs_idata_realloc(dp, newsize - oldsize, XFS_DATA_FORK); | |
ac8ba50f | 1001 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1da177e4 LT |
1002 | /* |
1003 | * Are we changing inode number size? | |
1004 | */ | |
1005 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) { | |
ac8ba50f | 1006 | if (sfp->i8count == 1) |
1da177e4 LT |
1007 | xfs_dir2_sf_toino4(args); |
1008 | else | |
ac8ba50f | 1009 | sfp->i8count--; |
1da177e4 | 1010 | } |
1da177e4 LT |
1011 | xfs_dir2_sf_check(args); |
1012 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); | |
1013 | return 0; | |
1014 | } | |
1015 | ||
93597ae8 | 1016 | /* |
1017 | * Check whether the sf dir replace operation need more blocks. | |
1018 | */ | |
6da1b4b1 | 1019 | static bool |
93597ae8 | 1020 | xfs_dir2_sf_replace_needblock( |
1021 | struct xfs_inode *dp, | |
1022 | xfs_ino_t inum) | |
1023 | { | |
1024 | int newsize; | |
1025 | struct xfs_dir2_sf_hdr *sfp; | |
1026 | ||
f7e67b20 | 1027 | if (dp->i_df.if_format != XFS_DINODE_FMT_LOCAL) |
93597ae8 | 1028 | return false; |
1029 | ||
1030 | sfp = (struct xfs_dir2_sf_hdr *)dp->i_df.if_u1.if_data; | |
1031 | newsize = dp->i_df.if_bytes + (sfp->count + 1) * XFS_INO64_DIFF; | |
1032 | ||
1033 | return inum > XFS_DIR2_MAX_SHORT_INUM && | |
1034 | sfp->i8count == 0 && newsize > XFS_IFORK_DSIZE(dp); | |
1035 | } | |
1036 | ||
1da177e4 LT |
1037 | /* |
1038 | * Replace the inode number of an entry in a shortform directory. | |
1039 | */ | |
1040 | int /* error */ | |
1041 | xfs_dir2_sf_replace( | |
1042 | xfs_da_args_t *args) /* operation arguments */ | |
1043 | { | |
50f6bb6b CH |
1044 | struct xfs_inode *dp = args->dp; |
1045 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 | 1046 | int i; /* entry index */ |
1da177e4 | 1047 | xfs_ino_t ino=0; /* entry old inode number */ |
1da177e4 | 1048 | int i8elevated; /* sf_toino8 set i8count=1 */ |
1da177e4 | 1049 | xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ |
ac8ba50f | 1050 | xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ |
1da177e4 | 1051 | |
0b1b213f CH |
1052 | trace_xfs_dir2_sf_replace(args); |
1053 | ||
0779f4a6 | 1054 | ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); |
13d2c10b CH |
1055 | ASSERT(dp->i_disk_size >= offsetof(struct xfs_dir2_sf_hdr, parent)); |
1056 | ASSERT(dp->i_df.if_bytes == dp->i_disk_size); | |
1da177e4 | 1057 | ASSERT(dp->i_df.if_u1.if_data != NULL); |
ac8ba50f | 1058 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
13d2c10b | 1059 | ASSERT(dp->i_disk_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); |
d5cf09ba | 1060 | |
1da177e4 LT |
1061 | /* |
1062 | * New inode number is large, and need to convert to 8-byte inodes. | |
1063 | */ | |
ac8ba50f | 1064 | if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { |
1da177e4 | 1065 | int error; /* error return value */ |
1da177e4 | 1066 | |
1da177e4 LT |
1067 | /* |
1068 | * Won't fit as shortform, convert to block then do replace. | |
1069 | */ | |
93597ae8 | 1070 | if (xfs_dir2_sf_replace_needblock(dp, args->inumber)) { |
1da177e4 | 1071 | error = xfs_dir2_sf_to_block(args); |
93597ae8 | 1072 | if (error) |
1da177e4 | 1073 | return error; |
1da177e4 LT |
1074 | return xfs_dir2_block_replace(args); |
1075 | } | |
1076 | /* | |
1077 | * Still fits, convert to 8-byte now. | |
1078 | */ | |
1079 | xfs_dir2_sf_toino8(args); | |
1080 | i8elevated = 1; | |
ac8ba50f | 1081 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1da177e4 LT |
1082 | } else |
1083 | i8elevated = 0; | |
d5cf09ba | 1084 | |
1da177e4 LT |
1085 | ASSERT(args->namelen != 1 || args->name[0] != '.'); |
1086 | /* | |
1087 | * Replace ..'s entry. | |
1088 | */ | |
1089 | if (args->namelen == 2 && | |
1090 | args->name[0] == '.' && args->name[1] == '.') { | |
84915e1b | 1091 | ino = xfs_dir2_sf_get_parent_ino(sfp); |
1da177e4 | 1092 | ASSERT(args->inumber != ino); |
84915e1b | 1093 | xfs_dir2_sf_put_parent_ino(sfp, args->inumber); |
1da177e4 LT |
1094 | } |
1095 | /* | |
1096 | * Normal entry, look for the name. | |
1097 | */ | |
1098 | else { | |
0cb97766 | 1099 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; |
50f6bb6b | 1100 | i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { |
5163f95a BN |
1101 | if (xfs_da_compname(args, sfep->name, sfep->namelen) == |
1102 | XFS_CMP_EXACT) { | |
93b1e96a | 1103 | ino = xfs_dir2_sf_get_ino(mp, sfp, sfep); |
1da177e4 | 1104 | ASSERT(args->inumber != ino); |
93b1e96a CH |
1105 | xfs_dir2_sf_put_ino(mp, sfp, sfep, |
1106 | args->inumber); | |
4501ed2a | 1107 | xfs_dir2_sf_put_ftype(mp, sfep, args->filetype); |
1da177e4 LT |
1108 | break; |
1109 | } | |
1110 | } | |
1111 | /* | |
1112 | * Didn't find it. | |
1113 | */ | |
ac8ba50f | 1114 | if (i == sfp->count) { |
6a178100 | 1115 | ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); |
1da177e4 LT |
1116 | if (i8elevated) |
1117 | xfs_dir2_sf_toino4(args); | |
2451337d | 1118 | return -ENOENT; |
1da177e4 LT |
1119 | } |
1120 | } | |
1da177e4 LT |
1121 | /* |
1122 | * See if the old number was large, the new number is small. | |
1123 | */ | |
1124 | if (ino > XFS_DIR2_MAX_SHORT_INUM && | |
1125 | args->inumber <= XFS_DIR2_MAX_SHORT_INUM) { | |
1126 | /* | |
1127 | * And the old count was one, so need to convert to small. | |
1128 | */ | |
ac8ba50f | 1129 | if (sfp->i8count == 1) |
1da177e4 LT |
1130 | xfs_dir2_sf_toino4(args); |
1131 | else | |
ac8ba50f | 1132 | sfp->i8count--; |
1da177e4 LT |
1133 | } |
1134 | /* | |
1135 | * See if the old number was small, the new number is large. | |
1136 | */ | |
1137 | if (ino <= XFS_DIR2_MAX_SHORT_INUM && | |
1138 | args->inumber > XFS_DIR2_MAX_SHORT_INUM) { | |
1139 | /* | |
1140 | * add to the i8count unless we just converted to 8-byte | |
1141 | * inodes (which does an implied i8count = 1) | |
1142 | */ | |
ac8ba50f | 1143 | ASSERT(sfp->i8count != 0); |
1da177e4 | 1144 | if (!i8elevated) |
ac8ba50f | 1145 | sfp->i8count++; |
1da177e4 | 1146 | } |
1da177e4 LT |
1147 | xfs_dir2_sf_check(args); |
1148 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA); | |
1149 | return 0; | |
1150 | } | |
1151 | ||
1da177e4 LT |
1152 | /* |
1153 | * Convert from 8-byte inode numbers to 4-byte inode numbers. | |
1154 | * The last 8-byte inode number is gone, but the count is still 1. | |
1155 | */ | |
1156 | static void | |
1157 | xfs_dir2_sf_toino4( | |
1158 | xfs_da_args_t *args) /* operation arguments */ | |
1159 | { | |
50f6bb6b CH |
1160 | struct xfs_inode *dp = args->dp; |
1161 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 | 1162 | char *buf; /* old dir's buffer */ |
1da177e4 | 1163 | int i; /* entry index */ |
1da177e4 LT |
1164 | int newsize; /* new inode size */ |
1165 | xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ | |
ac8ba50f | 1166 | xfs_dir2_sf_hdr_t *oldsfp; /* old sf directory */ |
1da177e4 LT |
1167 | int oldsize; /* old inode size */ |
1168 | xfs_dir2_sf_entry_t *sfep; /* new sf entry */ | |
ac8ba50f | 1169 | xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ |
1da177e4 | 1170 | |
0b1b213f CH |
1171 | trace_xfs_dir2_sf_toino4(args); |
1172 | ||
1da177e4 LT |
1173 | /* |
1174 | * Copy the old directory to the buffer. | |
1175 | * Then nuke it from the inode, and add the new buffer to the inode. | |
1176 | * Don't want xfs_idata_realloc copying the data here. | |
1177 | */ | |
1178 | oldsize = dp->i_df.if_bytes; | |
707e0dda | 1179 | buf = kmem_alloc(oldsize, 0); |
ac8ba50f CH |
1180 | oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1181 | ASSERT(oldsfp->i8count == 1); | |
1da177e4 LT |
1182 | memcpy(buf, oldsfp, oldsize); |
1183 | /* | |
1184 | * Compute the new inode size. | |
1185 | */ | |
266b6969 | 1186 | newsize = oldsize - (oldsfp->count + 1) * XFS_INO64_DIFF; |
1da177e4 LT |
1187 | xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK); |
1188 | xfs_idata_realloc(dp, newsize, XFS_DATA_FORK); | |
1189 | /* | |
1190 | * Reset our pointers, the data has moved. | |
1191 | */ | |
ac8ba50f CH |
1192 | oldsfp = (xfs_dir2_sf_hdr_t *)buf; |
1193 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; | |
1da177e4 LT |
1194 | /* |
1195 | * Fill in the new header. | |
1196 | */ | |
ac8ba50f CH |
1197 | sfp->count = oldsfp->count; |
1198 | sfp->i8count = 0; | |
84915e1b | 1199 | xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp)); |
1da177e4 LT |
1200 | /* |
1201 | * Copy the entries field by field. | |
1202 | */ | |
bbaaf538 CH |
1203 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), |
1204 | oldsfep = xfs_dir2_sf_firstentry(oldsfp); | |
ac8ba50f | 1205 | i < sfp->count; |
50f6bb6b CH |
1206 | i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep), |
1207 | oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep)) { | |
1da177e4 | 1208 | sfep->namelen = oldsfep->namelen; |
8353a649 | 1209 | memcpy(sfep->offset, oldsfep->offset, sizeof(sfep->offset)); |
1da177e4 | 1210 | memcpy(sfep->name, oldsfep->name, sfep->namelen); |
93b1e96a CH |
1211 | xfs_dir2_sf_put_ino(mp, sfp, sfep, |
1212 | xfs_dir2_sf_get_ino(mp, oldsfp, oldsfep)); | |
4501ed2a CH |
1213 | xfs_dir2_sf_put_ftype(mp, sfep, |
1214 | xfs_dir2_sf_get_ftype(mp, oldsfep)); | |
1da177e4 LT |
1215 | } |
1216 | /* | |
1217 | * Clean up the inode. | |
1218 | */ | |
f0e2d93c | 1219 | kmem_free(buf); |
13d2c10b | 1220 | dp->i_disk_size = newsize; |
1da177e4 LT |
1221 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
1222 | } | |
1223 | ||
1224 | /* | |
5e06d148 ES |
1225 | * Convert existing entries from 4-byte inode numbers to 8-byte inode numbers. |
1226 | * The new entry w/ an 8-byte inode number is not there yet; we leave with | |
1227 | * i8count set to 1, but no corresponding 8-byte entry. | |
1da177e4 LT |
1228 | */ |
1229 | static void | |
1230 | xfs_dir2_sf_toino8( | |
1231 | xfs_da_args_t *args) /* operation arguments */ | |
1232 | { | |
50f6bb6b CH |
1233 | struct xfs_inode *dp = args->dp; |
1234 | struct xfs_mount *mp = dp->i_mount; | |
1da177e4 | 1235 | char *buf; /* old dir's buffer */ |
1da177e4 | 1236 | int i; /* entry index */ |
1da177e4 LT |
1237 | int newsize; /* new inode size */ |
1238 | xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ | |
ac8ba50f | 1239 | xfs_dir2_sf_hdr_t *oldsfp; /* old sf directory */ |
1da177e4 LT |
1240 | int oldsize; /* old inode size */ |
1241 | xfs_dir2_sf_entry_t *sfep; /* new sf entry */ | |
ac8ba50f | 1242 | xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ |
1da177e4 | 1243 | |
0b1b213f CH |
1244 | trace_xfs_dir2_sf_toino8(args); |
1245 | ||
1da177e4 LT |
1246 | /* |
1247 | * Copy the old directory to the buffer. | |
1248 | * Then nuke it from the inode, and add the new buffer to the inode. | |
1249 | * Don't want xfs_idata_realloc copying the data here. | |
1250 | */ | |
1251 | oldsize = dp->i_df.if_bytes; | |
707e0dda | 1252 | buf = kmem_alloc(oldsize, 0); |
ac8ba50f CH |
1253 | oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; |
1254 | ASSERT(oldsfp->i8count == 0); | |
1da177e4 LT |
1255 | memcpy(buf, oldsfp, oldsize); |
1256 | /* | |
5e06d148 | 1257 | * Compute the new inode size (nb: entry count + 1 for parent) |
1da177e4 | 1258 | */ |
266b6969 | 1259 | newsize = oldsize + (oldsfp->count + 1) * XFS_INO64_DIFF; |
1da177e4 LT |
1260 | xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK); |
1261 | xfs_idata_realloc(dp, newsize, XFS_DATA_FORK); | |
1262 | /* | |
1263 | * Reset our pointers, the data has moved. | |
1264 | */ | |
ac8ba50f CH |
1265 | oldsfp = (xfs_dir2_sf_hdr_t *)buf; |
1266 | sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; | |
1da177e4 LT |
1267 | /* |
1268 | * Fill in the new header. | |
1269 | */ | |
ac8ba50f CH |
1270 | sfp->count = oldsfp->count; |
1271 | sfp->i8count = 1; | |
84915e1b | 1272 | xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp)); |
1da177e4 LT |
1273 | /* |
1274 | * Copy the entries field by field. | |
1275 | */ | |
bbaaf538 CH |
1276 | for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), |
1277 | oldsfep = xfs_dir2_sf_firstentry(oldsfp); | |
ac8ba50f | 1278 | i < sfp->count; |
50f6bb6b CH |
1279 | i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep), |
1280 | oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep)) { | |
1da177e4 | 1281 | sfep->namelen = oldsfep->namelen; |
8353a649 | 1282 | memcpy(sfep->offset, oldsfep->offset, sizeof(sfep->offset)); |
1da177e4 | 1283 | memcpy(sfep->name, oldsfep->name, sfep->namelen); |
93b1e96a CH |
1284 | xfs_dir2_sf_put_ino(mp, sfp, sfep, |
1285 | xfs_dir2_sf_get_ino(mp, oldsfp, oldsfep)); | |
4501ed2a CH |
1286 | xfs_dir2_sf_put_ftype(mp, sfep, |
1287 | xfs_dir2_sf_get_ftype(mp, oldsfep)); | |
1da177e4 LT |
1288 | } |
1289 | /* | |
1290 | * Clean up the inode. | |
1291 | */ | |
f0e2d93c | 1292 | kmem_free(buf); |
13d2c10b | 1293 | dp->i_disk_size = newsize; |
1da177e4 LT |
1294 | xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); |
1295 | } |