Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/fs/ufs/inode.c | |
3 | * | |
4 | * Copyright (C) 1998 | |
5 | * Daniel Pirkl <daniel.pirkl@email.cz> | |
6 | * Charles University, Faculty of Mathematics and Physics | |
7 | * | |
8 | * from | |
9 | * | |
10 | * linux/fs/ext2/inode.c | |
11 | * | |
12 | * Copyright (C) 1992, 1993, 1994, 1995 | |
13 | * Remy Card (card@masi.ibp.fr) | |
14 | * Laboratoire MASI - Institut Blaise Pascal | |
15 | * Universite Pierre et Marie Curie (Paris VI) | |
16 | * | |
17 | * from | |
18 | * | |
19 | * linux/fs/minix/inode.c | |
20 | * | |
21 | * Copyright (C) 1991, 1992 Linus Torvalds | |
22 | * | |
23 | * Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993 | |
24 | * Big-endian to little-endian byte-swapping/bitmaps by | |
25 | * David S. Miller (davem@caip.rutgers.edu), 1995 | |
26 | */ | |
27 | ||
28 | #include <asm/uaccess.h> | |
29 | #include <asm/system.h> | |
30 | ||
31 | #include <linux/errno.h> | |
32 | #include <linux/fs.h> | |
1da177e4 LT |
33 | #include <linux/time.h> |
34 | #include <linux/stat.h> | |
35 | #include <linux/string.h> | |
36 | #include <linux/mm.h> | |
37 | #include <linux/smp_lock.h> | |
38 | #include <linux/buffer_head.h> | |
a9185b41 | 39 | #include <linux/writeback.h> |
907f4554 | 40 | #include <linux/quotaops.h> |
1da177e4 | 41 | |
e5420598 | 42 | #include "ufs_fs.h" |
bcd6d4ec | 43 | #include "ufs.h" |
1da177e4 LT |
44 | #include "swab.h" |
45 | #include "util.h" | |
46 | ||
138bb68a AB |
47 | static u64 ufs_frag_map(struct inode *inode, sector_t frag); |
48 | ||
1da177e4 LT |
49 | static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t offsets[4]) |
50 | { | |
51 | struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi; | |
52 | int ptrs = uspi->s_apb; | |
53 | int ptrs_bits = uspi->s_apbshift; | |
54 | const long direct_blocks = UFS_NDADDR, | |
55 | indirect_blocks = ptrs, | |
56 | double_blocks = (1 << (ptrs_bits * 2)); | |
57 | int n = 0; | |
58 | ||
59 | ||
abf5d15f | 60 | UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks); |
37044c86 | 61 | if (i_block < direct_blocks) { |
1da177e4 LT |
62 | offsets[n++] = i_block; |
63 | } else if ((i_block -= direct_blocks) < indirect_blocks) { | |
64 | offsets[n++] = UFS_IND_BLOCK; | |
65 | offsets[n++] = i_block; | |
66 | } else if ((i_block -= indirect_blocks) < double_blocks) { | |
67 | offsets[n++] = UFS_DIND_BLOCK; | |
68 | offsets[n++] = i_block >> ptrs_bits; | |
69 | offsets[n++] = i_block & (ptrs - 1); | |
70 | } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) { | |
71 | offsets[n++] = UFS_TIND_BLOCK; | |
72 | offsets[n++] = i_block >> (ptrs_bits * 2); | |
73 | offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1); | |
74 | offsets[n++] = i_block & (ptrs - 1); | |
75 | } else { | |
76 | ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big"); | |
77 | } | |
78 | return n; | |
79 | } | |
80 | ||
81 | /* | |
82 | * Returns the location of the fragment from | |
83 | * the begining of the filesystem. | |
84 | */ | |
85 | ||
138bb68a | 86 | static u64 ufs_frag_map(struct inode *inode, sector_t frag) |
1da177e4 LT |
87 | { |
88 | struct ufs_inode_info *ufsi = UFS_I(inode); | |
89 | struct super_block *sb = inode->i_sb; | |
90 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
91 | u64 mask = (u64) uspi->s_apbmask>>uspi->s_fpbshift; | |
92 | int shift = uspi->s_apbshift-uspi->s_fpbshift; | |
93 | sector_t offsets[4], *p; | |
94 | int depth = ufs_block_to_path(inode, frag >> uspi->s_fpbshift, offsets); | |
95 | u64 ret = 0L; | |
96 | __fs32 block; | |
97 | __fs64 u2_block = 0L; | |
98 | unsigned flags = UFS_SB(sb)->s_flags; | |
99 | u64 temp = 0L; | |
100 | ||
abf5d15f | 101 | UFSD(": frag = %llu depth = %d\n", (unsigned long long)frag, depth); |
7256d819 AM |
102 | UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n", |
103 | uspi->s_fpbshift, uspi->s_apbmask, | |
104 | (unsigned long long)mask); | |
1da177e4 LT |
105 | |
106 | if (depth == 0) | |
107 | return 0; | |
108 | ||
109 | p = offsets; | |
110 | ||
111 | lock_kernel(); | |
112 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) | |
113 | goto ufs2; | |
114 | ||
115 | block = ufsi->i_u1.i_data[*p++]; | |
116 | if (!block) | |
117 | goto out; | |
118 | while (--depth) { | |
119 | struct buffer_head *bh; | |
120 | sector_t n = *p++; | |
121 | ||
122 | bh = sb_bread(sb, uspi->s_sbbase + fs32_to_cpu(sb, block)+(n>>shift)); | |
123 | if (!bh) | |
124 | goto out; | |
125 | block = ((__fs32 *) bh->b_data)[n & mask]; | |
126 | brelse (bh); | |
127 | if (!block) | |
128 | goto out; | |
129 | } | |
130 | ret = (u64) (uspi->s_sbbase + fs32_to_cpu(sb, block) + (frag & uspi->s_fpbmask)); | |
131 | goto out; | |
132 | ufs2: | |
133 | u2_block = ufsi->i_u1.u2_i_data[*p++]; | |
134 | if (!u2_block) | |
135 | goto out; | |
136 | ||
137 | ||
138 | while (--depth) { | |
139 | struct buffer_head *bh; | |
140 | sector_t n = *p++; | |
141 | ||
142 | ||
143 | temp = (u64)(uspi->s_sbbase) + fs64_to_cpu(sb, u2_block); | |
144 | bh = sb_bread(sb, temp +(u64) (n>>shift)); | |
145 | if (!bh) | |
146 | goto out; | |
147 | u2_block = ((__fs64 *)bh->b_data)[n & mask]; | |
148 | brelse(bh); | |
149 | if (!u2_block) | |
150 | goto out; | |
151 | } | |
152 | temp = (u64)uspi->s_sbbase + fs64_to_cpu(sb, u2_block); | |
153 | ret = temp + (u64) (frag & uspi->s_fpbmask); | |
154 | ||
155 | out: | |
156 | unlock_kernel(); | |
157 | return ret; | |
158 | } | |
159 | ||
022a6dc5 ED |
160 | /** |
161 | * ufs_inode_getfrag() - allocate new fragment(s) | |
162 | * @inode - pointer to inode | |
163 | * @fragment - number of `fragment' which hold pointer | |
164 | * to new allocated fragment(s) | |
165 | * @new_fragment - number of new allocated fragment(s) | |
166 | * @required - how many fragment(s) we require | |
167 | * @err - we set it if something wrong | |
168 | * @phys - pointer to where we save physical number of new allocated fragments, | |
169 | * NULL if we allocate not data(indirect blocks for example). | |
170 | * @new - we set it if we allocate new block | |
171 | * @locked_page - for ufs_new_fragments() | |
172 | */ | |
173 | static struct buffer_head * | |
54fb996a | 174 | ufs_inode_getfrag(struct inode *inode, u64 fragment, |
022a6dc5 ED |
175 | sector_t new_fragment, unsigned int required, int *err, |
176 | long *phys, int *new, struct page *locked_page) | |
1da177e4 LT |
177 | { |
178 | struct ufs_inode_info *ufsi = UFS_I(inode); | |
022a6dc5 ED |
179 | struct super_block *sb = inode->i_sb; |
180 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
1da177e4 | 181 | struct buffer_head * result; |
54fb996a ED |
182 | unsigned blockoff, lastblockoff; |
183 | u64 tmp, goal, lastfrag, block, lastblock; | |
184 | void *p, *p2; | |
1da177e4 | 185 | |
54fb996a ED |
186 | UFSD("ENTER, ino %lu, fragment %llu, new_fragment %llu, required %u, " |
187 | "metadata %d\n", inode->i_ino, (unsigned long long)fragment, | |
022a6dc5 | 188 | (unsigned long long)new_fragment, required, !phys); |
1da177e4 | 189 | |
1da177e4 LT |
190 | /* TODO : to be done for write support |
191 | if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) | |
192 | goto ufs2; | |
193 | */ | |
194 | ||
195 | block = ufs_fragstoblks (fragment); | |
196 | blockoff = ufs_fragnum (fragment); | |
54fb996a ED |
197 | p = ufs_get_direct_data_ptr(uspi, ufsi, block); |
198 | ||
1da177e4 LT |
199 | goal = 0; |
200 | ||
201 | repeat: | |
54fb996a ED |
202 | tmp = ufs_data_ptr_to_cpu(sb, p); |
203 | ||
1da177e4 LT |
204 | lastfrag = ufsi->i_lastfrag; |
205 | if (tmp && fragment < lastfrag) { | |
022a6dc5 | 206 | if (!phys) { |
1da177e4 | 207 | result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff); |
54fb996a ED |
208 | if (tmp == ufs_data_ptr_to_cpu(sb, p)) { |
209 | UFSD("EXIT, result %llu\n", | |
210 | (unsigned long long)tmp + blockoff); | |
1da177e4 LT |
211 | return result; |
212 | } | |
213 | brelse (result); | |
214 | goto repeat; | |
215 | } else { | |
4b25a37e | 216 | *phys = uspi->s_sbbase + tmp + blockoff; |
1da177e4 LT |
217 | return NULL; |
218 | } | |
219 | } | |
220 | ||
221 | lastblock = ufs_fragstoblks (lastfrag); | |
222 | lastblockoff = ufs_fragnum (lastfrag); | |
223 | /* | |
224 | * We will extend file into new block beyond last allocated block | |
225 | */ | |
226 | if (lastblock < block) { | |
227 | /* | |
228 | * We must reallocate last allocated block | |
229 | */ | |
230 | if (lastblockoff) { | |
54fb996a ED |
231 | p2 = ufs_get_direct_data_ptr(uspi, ufsi, lastblock); |
232 | tmp = ufs_new_fragments(inode, p2, lastfrag, | |
233 | ufs_data_ptr_to_cpu(sb, p2), | |
234 | uspi->s_fpb - lastblockoff, | |
235 | err, locked_page); | |
1da177e4 LT |
236 | if (!tmp) { |
237 | if (lastfrag != ufsi->i_lastfrag) | |
238 | goto repeat; | |
239 | else | |
240 | return NULL; | |
241 | } | |
242 | lastfrag = ufsi->i_lastfrag; | |
243 | ||
244 | } | |
54fb996a ED |
245 | tmp = ufs_data_ptr_to_cpu(sb, |
246 | ufs_get_direct_data_ptr(uspi, ufsi, | |
247 | lastblock)); | |
c37336b0 ED |
248 | if (tmp) |
249 | goal = tmp + uspi->s_fpb; | |
1da177e4 | 250 | tmp = ufs_new_fragments (inode, p, fragment - blockoff, |
6ef4d6bf | 251 | goal, required + blockoff, |
a685e26f ED |
252 | err, |
253 | phys != NULL ? locked_page : NULL); | |
54fb996a | 254 | } else if (lastblock == block) { |
1da177e4 LT |
255 | /* |
256 | * We will extend last allocated block | |
257 | */ | |
54fb996a ED |
258 | tmp = ufs_new_fragments(inode, p, fragment - |
259 | (blockoff - lastblockoff), | |
260 | ufs_data_ptr_to_cpu(sb, p), | |
261 | required + (blockoff - lastblockoff), | |
a685e26f | 262 | err, phys != NULL ? locked_page : NULL); |
c37336b0 | 263 | } else /* (lastblock > block) */ { |
1da177e4 LT |
264 | /* |
265 | * We will allocate new block before last allocated block | |
266 | */ | |
c37336b0 | 267 | if (block) { |
54fb996a ED |
268 | tmp = ufs_data_ptr_to_cpu(sb, |
269 | ufs_get_direct_data_ptr(uspi, ufsi, block - 1)); | |
c37336b0 ED |
270 | if (tmp) |
271 | goal = tmp + uspi->s_fpb; | |
272 | } | |
6ef4d6bf | 273 | tmp = ufs_new_fragments(inode, p, fragment - blockoff, |
a685e26f ED |
274 | goal, uspi->s_fpb, err, |
275 | phys != NULL ? locked_page : NULL); | |
1da177e4 LT |
276 | } |
277 | if (!tmp) { | |
54fb996a | 278 | if ((!blockoff && ufs_data_ptr_to_cpu(sb, p)) || |
1da177e4 LT |
279 | (blockoff && lastfrag != ufsi->i_lastfrag)) |
280 | goto repeat; | |
281 | *err = -ENOSPC; | |
282 | return NULL; | |
283 | } | |
284 | ||
022a6dc5 | 285 | if (!phys) { |
4b25a37e | 286 | result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff); |
1da177e4 | 287 | } else { |
4b25a37e | 288 | *phys = uspi->s_sbbase + tmp + blockoff; |
1da177e4 LT |
289 | result = NULL; |
290 | *err = 0; | |
291 | *new = 1; | |
292 | } | |
293 | ||
294 | inode->i_ctime = CURRENT_TIME_SEC; | |
295 | if (IS_SYNC(inode)) | |
296 | ufs_sync_inode (inode); | |
297 | mark_inode_dirty(inode); | |
54fb996a | 298 | UFSD("EXIT, result %llu\n", (unsigned long long)tmp + blockoff); |
1da177e4 LT |
299 | return result; |
300 | ||
301 | /* This part : To be implemented .... | |
302 | Required only for writing, not required for READ-ONLY. | |
303 | ufs2: | |
304 | ||
305 | u2_block = ufs_fragstoblks(fragment); | |
306 | u2_blockoff = ufs_fragnum(fragment); | |
307 | p = ufsi->i_u1.u2_i_data + block; | |
308 | goal = 0; | |
309 | ||
310 | repeat2: | |
311 | tmp = fs32_to_cpu(sb, *p); | |
312 | lastfrag = ufsi->i_lastfrag; | |
313 | ||
314 | */ | |
315 | } | |
316 | ||
022a6dc5 ED |
317 | /** |
318 | * ufs_inode_getblock() - allocate new block | |
319 | * @inode - pointer to inode | |
320 | * @bh - pointer to block which hold "pointer" to new allocated block | |
321 | * @fragment - number of `fragment' which hold pointer | |
322 | * to new allocated block | |
323 | * @new_fragment - number of new allocated fragment | |
324 | * (block will hold this fragment and also uspi->s_fpb-1) | |
325 | * @err - see ufs_inode_getfrag() | |
326 | * @phys - see ufs_inode_getfrag() | |
327 | * @new - see ufs_inode_getfrag() | |
328 | * @locked_page - see ufs_inode_getfrag() | |
329 | */ | |
330 | static struct buffer_head * | |
331 | ufs_inode_getblock(struct inode *inode, struct buffer_head *bh, | |
54fb996a | 332 | u64 fragment, sector_t new_fragment, int *err, |
022a6dc5 | 333 | long *phys, int *new, struct page *locked_page) |
1da177e4 | 334 | { |
022a6dc5 ED |
335 | struct super_block *sb = inode->i_sb; |
336 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
1da177e4 | 337 | struct buffer_head * result; |
54fb996a ED |
338 | unsigned blockoff; |
339 | u64 tmp, goal, block; | |
340 | void *p; | |
1da177e4 | 341 | |
1da177e4 LT |
342 | block = ufs_fragstoblks (fragment); |
343 | blockoff = ufs_fragnum (fragment); | |
344 | ||
54fb996a ED |
345 | UFSD("ENTER, ino %lu, fragment %llu, new_fragment %llu, metadata %d\n", |
346 | inode->i_ino, (unsigned long long)fragment, | |
347 | (unsigned long long)new_fragment, !phys); | |
1da177e4 LT |
348 | |
349 | result = NULL; | |
350 | if (!bh) | |
351 | goto out; | |
352 | if (!buffer_uptodate(bh)) { | |
353 | ll_rw_block (READ, 1, &bh); | |
354 | wait_on_buffer (bh); | |
355 | if (!buffer_uptodate(bh)) | |
356 | goto out; | |
357 | } | |
54fb996a ED |
358 | if (uspi->fs_magic == UFS2_MAGIC) |
359 | p = (__fs64 *)bh->b_data + block; | |
360 | else | |
361 | p = (__fs32 *)bh->b_data + block; | |
1da177e4 | 362 | repeat: |
54fb996a | 363 | tmp = ufs_data_ptr_to_cpu(sb, p); |
1da177e4 | 364 | if (tmp) { |
022a6dc5 | 365 | if (!phys) { |
1da177e4 | 366 | result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff); |
54fb996a | 367 | if (tmp == ufs_data_ptr_to_cpu(sb, p)) |
1da177e4 LT |
368 | goto out; |
369 | brelse (result); | |
370 | goto repeat; | |
371 | } else { | |
4b25a37e | 372 | *phys = uspi->s_sbbase + tmp + blockoff; |
1da177e4 LT |
373 | goto out; |
374 | } | |
375 | } | |
376 | ||
54fb996a ED |
377 | if (block && (uspi->fs_magic == UFS2_MAGIC ? |
378 | (tmp = fs64_to_cpu(sb, ((__fs64 *)bh->b_data)[block-1])) : | |
379 | (tmp = fs32_to_cpu(sb, ((__fs32 *)bh->b_data)[block-1])))) | |
1da177e4 LT |
380 | goal = tmp + uspi->s_fpb; |
381 | else | |
382 | goal = bh->b_blocknr + uspi->s_fpb; | |
6ef4d6bf ED |
383 | tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal, |
384 | uspi->s_fpb, err, locked_page); | |
1da177e4 | 385 | if (!tmp) { |
54fb996a | 386 | if (ufs_data_ptr_to_cpu(sb, p)) |
1da177e4 LT |
387 | goto repeat; |
388 | goto out; | |
389 | } | |
390 | ||
c9a27b5d | 391 | |
022a6dc5 | 392 | if (!phys) { |
4b25a37e | 393 | result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff); |
1da177e4 | 394 | } else { |
4b25a37e | 395 | *phys = uspi->s_sbbase + tmp + blockoff; |
1da177e4 LT |
396 | *new = 1; |
397 | } | |
398 | ||
399 | mark_buffer_dirty(bh); | |
400 | if (IS_SYNC(inode)) | |
401 | sync_dirty_buffer(bh); | |
402 | inode->i_ctime = CURRENT_TIME_SEC; | |
403 | mark_inode_dirty(inode); | |
54fb996a | 404 | UFSD("result %llu\n", (unsigned long long)tmp + blockoff); |
1da177e4 LT |
405 | out: |
406 | brelse (bh); | |
abf5d15f | 407 | UFSD("EXIT\n"); |
1da177e4 LT |
408 | return result; |
409 | } | |
410 | ||
022a6dc5 ED |
411 | /** |
412 | * ufs_getfrag_bloc() - `get_block_t' function, interface between UFS and | |
413 | * readpage, writepage and so on | |
1da177e4 LT |
414 | */ |
415 | ||
022a6dc5 | 416 | int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create) |
1da177e4 LT |
417 | { |
418 | struct super_block * sb = inode->i_sb; | |
419 | struct ufs_sb_private_info * uspi = UFS_SB(sb)->s_uspi; | |
420 | struct buffer_head * bh; | |
421 | int ret, err, new; | |
422 | unsigned long ptr,phys; | |
423 | u64 phys64 = 0; | |
424 | ||
425 | if (!create) { | |
426 | phys64 = ufs_frag_map(inode, fragment); | |
7256d819 | 427 | UFSD("phys64 = %llu\n", (unsigned long long)phys64); |
1da177e4 LT |
428 | if (phys64) |
429 | map_bh(bh_result, sb, phys64); | |
430 | return 0; | |
431 | } | |
432 | ||
433 | /* This code entered only while writing ....? */ | |
434 | ||
435 | err = -EIO; | |
436 | new = 0; | |
437 | ret = 0; | |
438 | bh = NULL; | |
439 | ||
440 | lock_kernel(); | |
441 | ||
abf5d15f | 442 | UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment); |
1da177e4 LT |
443 | if (fragment > |
444 | ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb) | |
445 | << uspi->s_fpbshift)) | |
446 | goto abort_too_big; | |
447 | ||
448 | err = 0; | |
449 | ptr = fragment; | |
450 | ||
451 | /* | |
452 | * ok, these macros clean the logic up a bit and make | |
453 | * it much more readable: | |
454 | */ | |
455 | #define GET_INODE_DATABLOCK(x) \ | |
a685e26f ED |
456 | ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new,\ |
457 | bh_result->b_page) | |
1da177e4 | 458 | #define GET_INODE_PTR(x) \ |
a685e26f ED |
459 | ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL,\ |
460 | bh_result->b_page) | |
1da177e4 | 461 | #define GET_INDIRECT_DATABLOCK(x) \ |
022a6dc5 | 462 | ufs_inode_getblock(inode, bh, x, fragment, \ |
d63b7090 | 463 | &err, &phys, &new, bh_result->b_page) |
1da177e4 | 464 | #define GET_INDIRECT_PTR(x) \ |
022a6dc5 | 465 | ufs_inode_getblock(inode, bh, x, fragment, \ |
d63b7090 | 466 | &err, NULL, NULL, NULL) |
1da177e4 LT |
467 | |
468 | if (ptr < UFS_NDIR_FRAGMENT) { | |
469 | bh = GET_INODE_DATABLOCK(ptr); | |
470 | goto out; | |
471 | } | |
472 | ptr -= UFS_NDIR_FRAGMENT; | |
473 | if (ptr < (1 << (uspi->s_apbshift + uspi->s_fpbshift))) { | |
474 | bh = GET_INODE_PTR(UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift)); | |
475 | goto get_indirect; | |
476 | } | |
477 | ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift); | |
478 | if (ptr < (1 << (uspi->s_2apbshift + uspi->s_fpbshift))) { | |
479 | bh = GET_INODE_PTR(UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift)); | |
480 | goto get_double; | |
481 | } | |
482 | ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift); | |
483 | bh = GET_INODE_PTR(UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift)); | |
484 | bh = GET_INDIRECT_PTR((ptr >> uspi->s_2apbshift) & uspi->s_apbmask); | |
485 | get_double: | |
486 | bh = GET_INDIRECT_PTR((ptr >> uspi->s_apbshift) & uspi->s_apbmask); | |
487 | get_indirect: | |
488 | bh = GET_INDIRECT_DATABLOCK(ptr & uspi->s_apbmask); | |
489 | ||
490 | #undef GET_INODE_DATABLOCK | |
491 | #undef GET_INODE_PTR | |
492 | #undef GET_INDIRECT_DATABLOCK | |
493 | #undef GET_INDIRECT_PTR | |
494 | ||
495 | out: | |
496 | if (err) | |
497 | goto abort; | |
498 | if (new) | |
499 | set_buffer_new(bh_result); | |
500 | map_bh(bh_result, sb, phys); | |
501 | abort: | |
502 | unlock_kernel(); | |
503 | return err; | |
504 | ||
1da177e4 LT |
505 | abort_too_big: |
506 | ufs_warning(sb, "ufs_get_block", "block > big"); | |
507 | goto abort; | |
508 | } | |
509 | ||
138bb68a AB |
510 | static struct buffer_head *ufs_getfrag(struct inode *inode, |
511 | unsigned int fragment, | |
512 | int create, int *err) | |
1da177e4 LT |
513 | { |
514 | struct buffer_head dummy; | |
515 | int error; | |
516 | ||
517 | dummy.b_state = 0; | |
518 | dummy.b_blocknr = -1000; | |
519 | error = ufs_getfrag_block(inode, fragment, &dummy, create); | |
520 | *err = error; | |
521 | if (!error && buffer_mapped(&dummy)) { | |
522 | struct buffer_head *bh; | |
523 | bh = sb_getblk(inode->i_sb, dummy.b_blocknr); | |
524 | if (buffer_new(&dummy)) { | |
525 | memset(bh->b_data, 0, inode->i_sb->s_blocksize); | |
526 | set_buffer_uptodate(bh); | |
527 | mark_buffer_dirty(bh); | |
528 | } | |
529 | return bh; | |
530 | } | |
531 | return NULL; | |
532 | } | |
533 | ||
534 | struct buffer_head * ufs_bread (struct inode * inode, unsigned fragment, | |
535 | int create, int * err) | |
536 | { | |
537 | struct buffer_head * bh; | |
538 | ||
abf5d15f | 539 | UFSD("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment); |
1da177e4 LT |
540 | bh = ufs_getfrag (inode, fragment, create, err); |
541 | if (!bh || buffer_uptodate(bh)) | |
542 | return bh; | |
543 | ll_rw_block (READ, 1, &bh); | |
544 | wait_on_buffer (bh); | |
545 | if (buffer_uptodate(bh)) | |
546 | return bh; | |
547 | brelse (bh); | |
548 | *err = -EIO; | |
549 | return NULL; | |
550 | } | |
551 | ||
552 | static int ufs_writepage(struct page *page, struct writeback_control *wbc) | |
553 | { | |
554 | return block_write_full_page(page,ufs_getfrag_block,wbc); | |
555 | } | |
82b9d1d0 | 556 | |
1da177e4 LT |
557 | static int ufs_readpage(struct file *file, struct page *page) |
558 | { | |
559 | return block_read_full_page(page,ufs_getfrag_block); | |
560 | } | |
82b9d1d0 NP |
561 | |
562 | int __ufs_write_begin(struct file *file, struct address_space *mapping, | |
563 | loff_t pos, unsigned len, unsigned flags, | |
564 | struct page **pagep, void **fsdata) | |
1da177e4 | 565 | { |
82b9d1d0 NP |
566 | return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, |
567 | ufs_getfrag_block); | |
1da177e4 | 568 | } |
82b9d1d0 NP |
569 | |
570 | static int ufs_write_begin(struct file *file, struct address_space *mapping, | |
571 | loff_t pos, unsigned len, unsigned flags, | |
572 | struct page **pagep, void **fsdata) | |
573 | { | |
574 | *pagep = NULL; | |
575 | return __ufs_write_begin(file, mapping, pos, len, flags, pagep, fsdata); | |
576 | } | |
577 | ||
1da177e4 LT |
578 | static sector_t ufs_bmap(struct address_space *mapping, sector_t block) |
579 | { | |
580 | return generic_block_bmap(mapping,block,ufs_getfrag_block); | |
581 | } | |
82b9d1d0 | 582 | |
f5e54d6e | 583 | const struct address_space_operations ufs_aops = { |
1da177e4 LT |
584 | .readpage = ufs_readpage, |
585 | .writepage = ufs_writepage, | |
586 | .sync_page = block_sync_page, | |
82b9d1d0 NP |
587 | .write_begin = ufs_write_begin, |
588 | .write_end = generic_write_end, | |
1da177e4 LT |
589 | .bmap = ufs_bmap |
590 | }; | |
591 | ||
826843a3 ED |
592 | static void ufs_set_inode_ops(struct inode *inode) |
593 | { | |
594 | if (S_ISREG(inode->i_mode)) { | |
595 | inode->i_op = &ufs_file_inode_operations; | |
596 | inode->i_fop = &ufs_file_operations; | |
597 | inode->i_mapping->a_ops = &ufs_aops; | |
598 | } else if (S_ISDIR(inode->i_mode)) { | |
599 | inode->i_op = &ufs_dir_inode_operations; | |
600 | inode->i_fop = &ufs_dir_operations; | |
601 | inode->i_mapping->a_ops = &ufs_aops; | |
602 | } else if (S_ISLNK(inode->i_mode)) { | |
603 | if (!inode->i_blocks) | |
604 | inode->i_op = &ufs_fast_symlink_inode_operations; | |
605 | else { | |
606 | inode->i_op = &page_symlink_inode_operations; | |
607 | inode->i_mapping->a_ops = &ufs_aops; | |
608 | } | |
609 | } else | |
610 | init_special_inode(inode, inode->i_mode, | |
611 | ufs_get_inode_dev(inode->i_sb, UFS_I(inode))); | |
612 | } | |
613 | ||
07a0cfec | 614 | static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode) |
1da177e4 LT |
615 | { |
616 | struct ufs_inode_info *ufsi = UFS_I(inode); | |
05f225dc | 617 | struct super_block *sb = inode->i_sb; |
1da177e4 | 618 | mode_t mode; |
1da177e4 LT |
619 | |
620 | /* | |
621 | * Copy data to the in-core inode. | |
622 | */ | |
623 | inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode); | |
624 | inode->i_nlink = fs16_to_cpu(sb, ufs_inode->ui_nlink); | |
07a0cfec | 625 | if (inode->i_nlink == 0) { |
1da177e4 | 626 | ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino); |
07a0cfec ED |
627 | return -1; |
628 | } | |
1da177e4 LT |
629 | |
630 | /* | |
631 | * Linux now has 32-bit uid and gid, so we can support EFT. | |
632 | */ | |
633 | inode->i_uid = ufs_get_inode_uid(sb, ufs_inode); | |
634 | inode->i_gid = ufs_get_inode_gid(sb, ufs_inode); | |
635 | ||
636 | inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size); | |
637 | inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec); | |
638 | inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec); | |
639 | inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec); | |
640 | inode->i_mtime.tv_nsec = 0; | |
641 | inode->i_atime.tv_nsec = 0; | |
642 | inode->i_ctime.tv_nsec = 0; | |
643 | inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks); | |
3313e292 | 644 | inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen); |
1da177e4 | 645 | ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags); |
1da177e4 LT |
646 | ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow); |
647 | ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag); | |
05f225dc | 648 | |
1da177e4 LT |
649 | |
650 | if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) { | |
f33219b7 DG |
651 | memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr, |
652 | sizeof(ufs_inode->ui_u2.ui_addr)); | |
dd187a26 | 653 | } else { |
f33219b7 | 654 | memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink, |
b12903f1 DG |
655 | sizeof(ufs_inode->ui_u2.ui_symlink) - 1); |
656 | ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0; | |
1da177e4 | 657 | } |
07a0cfec | 658 | return 0; |
05f225dc | 659 | } |
1da177e4 | 660 | |
07a0cfec | 661 | static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode) |
05f225dc ED |
662 | { |
663 | struct ufs_inode_info *ufsi = UFS_I(inode); | |
664 | struct super_block *sb = inode->i_sb; | |
665 | mode_t mode; | |
1da177e4 | 666 | |
abf5d15f | 667 | UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino); |
1da177e4 LT |
668 | /* |
669 | * Copy data to the in-core inode. | |
670 | */ | |
671 | inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode); | |
672 | inode->i_nlink = fs16_to_cpu(sb, ufs2_inode->ui_nlink); | |
07a0cfec | 673 | if (inode->i_nlink == 0) { |
1da177e4 | 674 | ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino); |
07a0cfec ED |
675 | return -1; |
676 | } | |
1da177e4 LT |
677 | |
678 | /* | |
679 | * Linux now has 32-bit uid and gid, so we can support EFT. | |
680 | */ | |
681 | inode->i_uid = fs32_to_cpu(sb, ufs2_inode->ui_uid); | |
682 | inode->i_gid = fs32_to_cpu(sb, ufs2_inode->ui_gid); | |
683 | ||
684 | inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size); | |
2189850f ED |
685 | inode->i_atime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_atime); |
686 | inode->i_ctime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_ctime); | |
687 | inode->i_mtime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_mtime); | |
688 | inode->i_atime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_atimensec); | |
689 | inode->i_ctime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_ctimensec); | |
690 | inode->i_mtime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_mtimensec); | |
1da177e4 | 691 | inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks); |
3313e292 | 692 | inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen); |
1da177e4 | 693 | ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags); |
1da177e4 LT |
694 | /* |
695 | ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow); | |
696 | ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag); | |
697 | */ | |
1da177e4 LT |
698 | |
699 | if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) { | |
f33219b7 DG |
700 | memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr, |
701 | sizeof(ufs2_inode->ui_u2.ui_addr)); | |
05f225dc | 702 | } else { |
f33219b7 | 703 | memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink, |
b12903f1 DG |
704 | sizeof(ufs2_inode->ui_u2.ui_symlink) - 1); |
705 | ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0; | |
1da177e4 | 706 | } |
07a0cfec | 707 | return 0; |
05f225dc ED |
708 | } |
709 | ||
b55c460d | 710 | struct inode *ufs_iget(struct super_block *sb, unsigned long ino) |
05f225dc | 711 | { |
b55c460d DH |
712 | struct ufs_inode_info *ufsi; |
713 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
05f225dc | 714 | struct buffer_head * bh; |
b55c460d | 715 | struct inode *inode; |
07a0cfec | 716 | int err; |
05f225dc | 717 | |
b55c460d | 718 | UFSD("ENTER, ino %lu\n", ino); |
05f225dc | 719 | |
b55c460d | 720 | if (ino < UFS_ROOTINO || ino > (uspi->s_ncg * uspi->s_ipg)) { |
05f225dc | 721 | ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n", |
b55c460d DH |
722 | ino); |
723 | return ERR_PTR(-EIO); | |
05f225dc ED |
724 | } |
725 | ||
b55c460d DH |
726 | inode = iget_locked(sb, ino); |
727 | if (!inode) | |
728 | return ERR_PTR(-ENOMEM); | |
729 | if (!(inode->i_state & I_NEW)) | |
730 | return inode; | |
731 | ||
732 | ufsi = UFS_I(inode); | |
733 | ||
05f225dc ED |
734 | bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino)); |
735 | if (!bh) { | |
736 | ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n", | |
737 | inode->i_ino); | |
738 | goto bad_inode; | |
739 | } | |
740 | if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { | |
741 | struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data; | |
742 | ||
07a0cfec ED |
743 | err = ufs2_read_inode(inode, |
744 | ufs2_inode + ufs_inotofsbo(inode->i_ino)); | |
05f225dc ED |
745 | } else { |
746 | struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data; | |
747 | ||
07a0cfec ED |
748 | err = ufs1_read_inode(inode, |
749 | ufs_inode + ufs_inotofsbo(inode->i_ino)); | |
05f225dc ED |
750 | } |
751 | ||
07a0cfec ED |
752 | if (err) |
753 | goto bad_inode; | |
05f225dc ED |
754 | inode->i_version++; |
755 | ufsi->i_lastfrag = | |
756 | (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift; | |
757 | ufsi->i_dir_start_lookup = 0; | |
1da177e4 LT |
758 | ufsi->i_osync = 0; |
759 | ||
826843a3 | 760 | ufs_set_inode_ops(inode); |
1da177e4 LT |
761 | |
762 | brelse(bh); | |
763 | ||
abf5d15f | 764 | UFSD("EXIT\n"); |
b55c460d DH |
765 | unlock_new_inode(inode); |
766 | return inode; | |
05f225dc ED |
767 | |
768 | bad_inode: | |
b55c460d DH |
769 | iget_failed(inode); |
770 | return ERR_PTR(-EIO); | |
1da177e4 LT |
771 | } |
772 | ||
3313e292 | 773 | static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode) |
1da177e4 | 774 | { |
3313e292 ED |
775 | struct super_block *sb = inode->i_sb; |
776 | struct ufs_inode_info *ufsi = UFS_I(inode); | |
1da177e4 LT |
777 | |
778 | ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode); | |
779 | ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink); | |
780 | ||
781 | ufs_set_inode_uid(sb, ufs_inode, inode->i_uid); | |
782 | ufs_set_inode_gid(sb, ufs_inode, inode->i_gid); | |
783 | ||
784 | ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size); | |
785 | ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec); | |
786 | ufs_inode->ui_atime.tv_usec = 0; | |
787 | ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec); | |
788 | ufs_inode->ui_ctime.tv_usec = 0; | |
789 | ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec); | |
790 | ufs_inode->ui_mtime.tv_usec = 0; | |
791 | ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks); | |
792 | ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags); | |
3313e292 | 793 | ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation); |
1da177e4 | 794 | |
3313e292 | 795 | if ((UFS_SB(sb)->s_flags & UFS_UID_MASK) == UFS_UID_EFT) { |
1da177e4 LT |
796 | ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow); |
797 | ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag); | |
798 | } | |
799 | ||
800 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { | |
801 | /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */ | |
802 | ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0]; | |
803 | } else if (inode->i_blocks) { | |
f33219b7 DG |
804 | memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data, |
805 | sizeof(ufs_inode->ui_u2.ui_addr)); | |
1da177e4 LT |
806 | } |
807 | else { | |
f33219b7 DG |
808 | memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink, |
809 | sizeof(ufs_inode->ui_u2.ui_symlink)); | |
1da177e4 LT |
810 | } |
811 | ||
812 | if (!inode->i_nlink) | |
813 | memset (ufs_inode, 0, sizeof(struct ufs_inode)); | |
3313e292 ED |
814 | } |
815 | ||
816 | static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode) | |
817 | { | |
818 | struct super_block *sb = inode->i_sb; | |
819 | struct ufs_inode_info *ufsi = UFS_I(inode); | |
3313e292 ED |
820 | |
821 | UFSD("ENTER\n"); | |
822 | ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode); | |
823 | ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink); | |
824 | ||
825 | ufs_inode->ui_uid = cpu_to_fs32(sb, inode->i_uid); | |
826 | ufs_inode->ui_gid = cpu_to_fs32(sb, inode->i_gid); | |
827 | ||
828 | ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size); | |
2189850f ED |
829 | ufs_inode->ui_atime = cpu_to_fs64(sb, inode->i_atime.tv_sec); |
830 | ufs_inode->ui_atimensec = cpu_to_fs32(sb, inode->i_atime.tv_nsec); | |
831 | ufs_inode->ui_ctime = cpu_to_fs64(sb, inode->i_ctime.tv_sec); | |
832 | ufs_inode->ui_ctimensec = cpu_to_fs32(sb, inode->i_ctime.tv_nsec); | |
833 | ufs_inode->ui_mtime = cpu_to_fs64(sb, inode->i_mtime.tv_sec); | |
834 | ufs_inode->ui_mtimensec = cpu_to_fs32(sb, inode->i_mtime.tv_nsec); | |
3313e292 ED |
835 | |
836 | ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks); | |
837 | ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags); | |
838 | ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation); | |
839 | ||
840 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { | |
841 | /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */ | |
842 | ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0]; | |
843 | } else if (inode->i_blocks) { | |
f33219b7 DG |
844 | memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data, |
845 | sizeof(ufs_inode->ui_u2.ui_addr)); | |
3313e292 | 846 | } else { |
f33219b7 DG |
847 | memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink, |
848 | sizeof(ufs_inode->ui_u2.ui_symlink)); | |
3313e292 ED |
849 | } |
850 | ||
851 | if (!inode->i_nlink) | |
852 | memset (ufs_inode, 0, sizeof(struct ufs2_inode)); | |
853 | UFSD("EXIT\n"); | |
854 | } | |
855 | ||
856 | static int ufs_update_inode(struct inode * inode, int do_sync) | |
857 | { | |
858 | struct super_block *sb = inode->i_sb; | |
859 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
860 | struct buffer_head * bh; | |
861 | ||
862 | UFSD("ENTER, ino %lu\n", inode->i_ino); | |
863 | ||
864 | if (inode->i_ino < UFS_ROOTINO || | |
865 | inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) { | |
866 | ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino); | |
867 | return -1; | |
868 | } | |
869 | ||
870 | bh = sb_bread(sb, ufs_inotofsba(inode->i_ino)); | |
871 | if (!bh) { | |
872 | ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino); | |
873 | return -1; | |
874 | } | |
875 | if (uspi->fs_magic == UFS2_MAGIC) { | |
876 | struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data; | |
877 | ||
878 | ufs2_update_inode(inode, | |
879 | ufs2_inode + ufs_inotofsbo(inode->i_ino)); | |
880 | } else { | |
881 | struct ufs_inode *ufs_inode = (struct ufs_inode *) bh->b_data; | |
882 | ||
883 | ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino)); | |
884 | } | |
1da177e4 LT |
885 | |
886 | mark_buffer_dirty(bh); | |
887 | if (do_sync) | |
888 | sync_dirty_buffer(bh); | |
889 | brelse (bh); | |
890 | ||
abf5d15f | 891 | UFSD("EXIT\n"); |
1da177e4 LT |
892 | return 0; |
893 | } | |
894 | ||
a9185b41 | 895 | int ufs_write_inode(struct inode *inode, struct writeback_control *wbc) |
1da177e4 LT |
896 | { |
897 | int ret; | |
898 | lock_kernel(); | |
a9185b41 | 899 | ret = ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL); |
1da177e4 LT |
900 | unlock_kernel(); |
901 | return ret; | |
902 | } | |
903 | ||
904 | int ufs_sync_inode (struct inode *inode) | |
905 | { | |
906 | return ufs_update_inode (inode, 1); | |
907 | } | |
908 | ||
909 | void ufs_delete_inode (struct inode * inode) | |
910 | { | |
10e5dce0 ED |
911 | loff_t old_i_size; |
912 | ||
907f4554 | 913 | if (!is_bad_inode(inode)) |
871a2931 | 914 | dquot_initialize(inode); |
907f4554 | 915 | |
fef26658 | 916 | truncate_inode_pages(&inode->i_data, 0); |
07a0cfec ED |
917 | if (is_bad_inode(inode)) |
918 | goto no_delete; | |
1da177e4 LT |
919 | /*UFS_I(inode)->i_dtime = CURRENT_TIME;*/ |
920 | lock_kernel(); | |
921 | mark_inode_dirty(inode); | |
922 | ufs_update_inode(inode, IS_SYNC(inode)); | |
10e5dce0 | 923 | old_i_size = inode->i_size; |
1da177e4 | 924 | inode->i_size = 0; |
10e5dce0 | 925 | if (inode->i_blocks && ufs_truncate(inode, old_i_size)) |
9746077a | 926 | ufs_warning(inode->i_sb, __func__, "ufs_truncate failed\n"); |
1da177e4 LT |
927 | ufs_free_inode (inode); |
928 | unlock_kernel(); | |
07a0cfec ED |
929 | return; |
930 | no_delete: | |
931 | clear_inode(inode); /* We must guarantee clearing of inode... */ | |
1da177e4 | 932 | } |