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