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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/fs/ufs/balloc.c | |
3 | * | |
4 | * Copyright (C) 1998 | |
5 | * Daniel Pirkl <daniel.pirkl@email.cz> | |
6 | * Charles University, Faculty of Mathematics and Physics | |
7 | */ | |
8 | ||
9 | #include <linux/fs.h> | |
10 | #include <linux/ufs_fs.h> | |
11 | #include <linux/stat.h> | |
12 | #include <linux/time.h> | |
13 | #include <linux/string.h> | |
14 | #include <linux/quotaops.h> | |
15 | #include <linux/buffer_head.h> | |
16f7e0fe | 16 | #include <linux/capability.h> |
1da177e4 LT |
17 | #include <linux/sched.h> |
18 | #include <linux/bitops.h> | |
19 | #include <asm/byteorder.h> | |
20 | ||
21 | #include "swab.h" | |
22 | #include "util.h" | |
23 | ||
1da177e4 LT |
24 | static unsigned ufs_add_fragments (struct inode *, unsigned, unsigned, unsigned, int *); |
25 | static unsigned ufs_alloc_fragments (struct inode *, unsigned, unsigned, unsigned, int *); | |
26 | static unsigned ufs_alloccg_block (struct inode *, struct ufs_cg_private_info *, unsigned, int *); | |
27 | static unsigned ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, unsigned, unsigned); | |
28 | static unsigned char ufs_fragtable_8fpb[], ufs_fragtable_other[]; | |
29 | static void ufs_clusteracct(struct super_block *, struct ufs_cg_private_info *, unsigned, int); | |
30 | ||
31 | /* | |
32 | * Free 'count' fragments from fragment number 'fragment' | |
33 | */ | |
6ef4d6bf ED |
34 | void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count) |
35 | { | |
1da177e4 LT |
36 | struct super_block * sb; |
37 | struct ufs_sb_private_info * uspi; | |
38 | struct ufs_super_block_first * usb1; | |
39 | struct ufs_cg_private_info * ucpi; | |
40 | struct ufs_cylinder_group * ucg; | |
41 | unsigned cgno, bit, end_bit, bbase, blkmap, i, blkno, cylno; | |
42 | ||
43 | sb = inode->i_sb; | |
44 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 45 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 | 46 | |
abf5d15f | 47 | UFSD("ENTER, fragment %u, count %u\n", fragment, count); |
1da177e4 LT |
48 | |
49 | if (ufs_fragnum(fragment) + count > uspi->s_fpg) | |
50 | ufs_error (sb, "ufs_free_fragments", "internal error"); | |
51 | ||
52 | lock_super(sb); | |
53 | ||
54 | cgno = ufs_dtog(fragment); | |
55 | bit = ufs_dtogd(fragment); | |
56 | if (cgno >= uspi->s_ncg) { | |
57 | ufs_panic (sb, "ufs_free_fragments", "freeing blocks are outside device"); | |
58 | goto failed; | |
59 | } | |
60 | ||
61 | ucpi = ufs_load_cylinder (sb, cgno); | |
62 | if (!ucpi) | |
63 | goto failed; | |
9695ef16 | 64 | ucg = ubh_get_ucg (UCPI_UBH(ucpi)); |
1da177e4 LT |
65 | if (!ufs_cg_chkmagic(sb, ucg)) { |
66 | ufs_panic (sb, "ufs_free_fragments", "internal error, bad magic number on cg %u", cgno); | |
67 | goto failed; | |
68 | } | |
69 | ||
70 | end_bit = bit + count; | |
71 | bbase = ufs_blknum (bit); | |
9695ef16 | 72 | blkmap = ubh_blkmap (UCPI_UBH(ucpi), ucpi->c_freeoff, bbase); |
1da177e4 LT |
73 | ufs_fragacct (sb, blkmap, ucg->cg_frsum, -1); |
74 | for (i = bit; i < end_bit; i++) { | |
9695ef16 ED |
75 | if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, i)) |
76 | ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, i); | |
7b4ee73e E |
77 | else |
78 | ufs_error (sb, "ufs_free_fragments", | |
79 | "bit already cleared for fragment %u", i); | |
1da177e4 LT |
80 | } |
81 | ||
82 | DQUOT_FREE_BLOCK (inode, count); | |
83 | ||
84 | ||
85 | fs32_add(sb, &ucg->cg_cs.cs_nffree, count); | |
ee3ffd6c | 86 | uspi->cs_total.cs_nffree += count; |
1da177e4 | 87 | fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count); |
9695ef16 | 88 | blkmap = ubh_blkmap (UCPI_UBH(ucpi), ucpi->c_freeoff, bbase); |
1da177e4 LT |
89 | ufs_fragacct(sb, blkmap, ucg->cg_frsum, 1); |
90 | ||
91 | /* | |
92 | * Trying to reassemble free fragments into block | |
93 | */ | |
94 | blkno = ufs_fragstoblks (bbase); | |
9695ef16 | 95 | if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno)) { |
1da177e4 | 96 | fs32_sub(sb, &ucg->cg_cs.cs_nffree, uspi->s_fpb); |
ee3ffd6c | 97 | uspi->cs_total.cs_nffree -= uspi->s_fpb; |
1da177e4 LT |
98 | fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, uspi->s_fpb); |
99 | if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD) | |
100 | ufs_clusteracct (sb, ucpi, blkno, 1); | |
101 | fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1); | |
ee3ffd6c | 102 | uspi->cs_total.cs_nbfree++; |
1da177e4 LT |
103 | fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nbfree, 1); |
104 | cylno = ufs_cbtocylno (bbase); | |
105 | fs16_add(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(bbase)), 1); | |
106 | fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1); | |
107 | } | |
108 | ||
9695ef16 ED |
109 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
110 | ubh_mark_buffer_dirty (UCPI_UBH(ucpi)); | |
1da177e4 | 111 | if (sb->s_flags & MS_SYNCHRONOUS) { |
098d5af7 | 112 | ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi)); |
9695ef16 | 113 | ubh_wait_on_buffer (UCPI_UBH(ucpi)); |
1da177e4 LT |
114 | } |
115 | sb->s_dirt = 1; | |
116 | ||
117 | unlock_super (sb); | |
abf5d15f | 118 | UFSD("EXIT\n"); |
1da177e4 LT |
119 | return; |
120 | ||
121 | failed: | |
122 | unlock_super (sb); | |
abf5d15f | 123 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
124 | return; |
125 | } | |
126 | ||
127 | /* | |
128 | * Free 'count' fragments from fragment number 'fragment' (free whole blocks) | |
129 | */ | |
6ef4d6bf ED |
130 | void ufs_free_blocks(struct inode *inode, unsigned fragment, unsigned count) |
131 | { | |
1da177e4 LT |
132 | struct super_block * sb; |
133 | struct ufs_sb_private_info * uspi; | |
134 | struct ufs_super_block_first * usb1; | |
135 | struct ufs_cg_private_info * ucpi; | |
136 | struct ufs_cylinder_group * ucg; | |
137 | unsigned overflow, cgno, bit, end_bit, blkno, i, cylno; | |
138 | ||
139 | sb = inode->i_sb; | |
140 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 141 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 | 142 | |
abf5d15f | 143 | UFSD("ENTER, fragment %u, count %u\n", fragment, count); |
1da177e4 LT |
144 | |
145 | if ((fragment & uspi->s_fpbmask) || (count & uspi->s_fpbmask)) { | |
146 | ufs_error (sb, "ufs_free_blocks", "internal error, " | |
147 | "fragment %u, count %u\n", fragment, count); | |
148 | goto failed; | |
149 | } | |
150 | ||
151 | lock_super(sb); | |
152 | ||
153 | do_more: | |
154 | overflow = 0; | |
155 | cgno = ufs_dtog (fragment); | |
156 | bit = ufs_dtogd (fragment); | |
157 | if (cgno >= uspi->s_ncg) { | |
158 | ufs_panic (sb, "ufs_free_blocks", "freeing blocks are outside device"); | |
2e006393 | 159 | goto failed_unlock; |
1da177e4 LT |
160 | } |
161 | end_bit = bit + count; | |
162 | if (end_bit > uspi->s_fpg) { | |
163 | overflow = bit + count - uspi->s_fpg; | |
164 | count -= overflow; | |
165 | end_bit -= overflow; | |
166 | } | |
167 | ||
168 | ucpi = ufs_load_cylinder (sb, cgno); | |
169 | if (!ucpi) | |
2e006393 | 170 | goto failed_unlock; |
9695ef16 | 171 | ucg = ubh_get_ucg (UCPI_UBH(ucpi)); |
1da177e4 LT |
172 | if (!ufs_cg_chkmagic(sb, ucg)) { |
173 | ufs_panic (sb, "ufs_free_blocks", "internal error, bad magic number on cg %u", cgno); | |
2e006393 | 174 | goto failed_unlock; |
1da177e4 LT |
175 | } |
176 | ||
177 | for (i = bit; i < end_bit; i += uspi->s_fpb) { | |
178 | blkno = ufs_fragstoblks(i); | |
9695ef16 | 179 | if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno)) { |
1da177e4 LT |
180 | ufs_error(sb, "ufs_free_blocks", "freeing free fragment"); |
181 | } | |
9695ef16 | 182 | ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno); |
1da177e4 LT |
183 | if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD) |
184 | ufs_clusteracct (sb, ucpi, blkno, 1); | |
185 | DQUOT_FREE_BLOCK(inode, uspi->s_fpb); | |
186 | ||
187 | fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1); | |
ee3ffd6c | 188 | uspi->cs_total.cs_nbfree++; |
1da177e4 LT |
189 | fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nbfree, 1); |
190 | cylno = ufs_cbtocylno(i); | |
191 | fs16_add(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(i)), 1); | |
192 | fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1); | |
193 | } | |
194 | ||
9695ef16 ED |
195 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
196 | ubh_mark_buffer_dirty (UCPI_UBH(ucpi)); | |
1da177e4 | 197 | if (sb->s_flags & MS_SYNCHRONOUS) { |
098d5af7 | 198 | ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi)); |
9695ef16 | 199 | ubh_wait_on_buffer (UCPI_UBH(ucpi)); |
1da177e4 LT |
200 | } |
201 | ||
202 | if (overflow) { | |
203 | fragment += count; | |
204 | count = overflow; | |
205 | goto do_more; | |
206 | } | |
207 | ||
208 | sb->s_dirt = 1; | |
209 | unlock_super (sb); | |
abf5d15f | 210 | UFSD("EXIT\n"); |
1da177e4 LT |
211 | return; |
212 | ||
2e006393 | 213 | failed_unlock: |
1da177e4 | 214 | unlock_super (sb); |
2e006393 | 215 | failed: |
abf5d15f | 216 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
217 | return; |
218 | } | |
219 | ||
6ef4d6bf ED |
220 | /* |
221 | * Modify inode page cache in such way: | |
222 | * have - blocks with b_blocknr equal to oldb...oldb+count-1 | |
223 | * get - blocks with b_blocknr equal to newb...newb+count-1 | |
224 | * also we suppose that oldb...oldb+count-1 blocks | |
225 | * situated at the end of file. | |
226 | * | |
227 | * We can come here from ufs_writepage or ufs_prepare_write, | |
228 | * locked_page is argument of these functions, so we already lock it. | |
229 | */ | |
efee2b81 | 230 | static void ufs_change_blocknr(struct inode *inode, unsigned int beg, |
f3914758 ED |
231 | unsigned int count, unsigned int oldb, |
232 | unsigned int newb, struct page *locked_page) | |
6ef4d6bf | 233 | { |
efee2b81 ED |
234 | const unsigned mask = (1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)) - 1; |
235 | struct address_space * const mapping = inode->i_mapping; | |
a685e26f | 236 | pgoff_t index, cur_index; |
efee2b81 | 237 | unsigned end, pos, j; |
6ef4d6bf ED |
238 | struct page *page; |
239 | struct buffer_head *head, *bh; | |
240 | ||
abf5d15f ED |
241 | UFSD("ENTER, ino %lu, count %u, oldb %u, newb %u\n", |
242 | inode->i_ino, count, oldb, newb); | |
6ef4d6bf | 243 | |
a685e26f | 244 | BUG_ON(!locked_page); |
6ef4d6bf ED |
245 | BUG_ON(!PageLocked(locked_page)); |
246 | ||
a685e26f ED |
247 | cur_index = locked_page->index; |
248 | ||
efee2b81 ED |
249 | for (end = count + beg; beg < end; beg = (beg | mask) + 1) { |
250 | index = beg >> (PAGE_CACHE_SHIFT - inode->i_blkbits); | |
6ef4d6bf ED |
251 | |
252 | if (likely(cur_index != index)) { | |
253 | page = ufs_get_locked_page(mapping, index); | |
06fa45d3 | 254 | if (!page || IS_ERR(page)) /* it was truncated or EIO */ |
6ef4d6bf ED |
255 | continue; |
256 | } else | |
257 | page = locked_page; | |
258 | ||
6ef4d6bf ED |
259 | head = page_buffers(page); |
260 | bh = head; | |
efee2b81 ED |
261 | pos = beg & mask; |
262 | for (j = 0; j < pos; ++j) | |
263 | bh = bh->b_this_page; | |
264 | j = 0; | |
6ef4d6bf | 265 | do { |
efee2b81 ED |
266 | if (buffer_mapped(bh)) { |
267 | pos = bh->b_blocknr - oldb; | |
268 | if (pos < count) { | |
269 | UFSD(" change from %llu to %llu\n", | |
270 | (unsigned long long)pos + oldb, | |
271 | (unsigned long long)pos + newb); | |
272 | bh->b_blocknr = newb + pos; | |
273 | unmap_underlying_metadata(bh->b_bdev, | |
274 | bh->b_blocknr); | |
275 | mark_buffer_dirty(bh); | |
276 | ++j; | |
277 | } | |
6ef4d6bf ED |
278 | } |
279 | ||
280 | bh = bh->b_this_page; | |
281 | } while (bh != head); | |
282 | ||
efee2b81 ED |
283 | if (j) |
284 | set_page_dirty(page); | |
6ef4d6bf | 285 | |
10e5dce0 ED |
286 | if (likely(cur_index != index)) |
287 | ufs_put_locked_page(page); | |
6ef4d6bf | 288 | } |
abf5d15f | 289 | UFSD("EXIT\n"); |
6ef4d6bf ED |
290 | } |
291 | ||
d63b7090 ED |
292 | static void ufs_clear_frags(struct inode *inode, sector_t beg, unsigned int n, |
293 | int sync) | |
294 | { | |
295 | struct buffer_head *bh; | |
296 | sector_t end = beg + n; | |
297 | ||
298 | for (; beg < end; ++beg) { | |
299 | bh = sb_getblk(inode->i_sb, beg); | |
300 | lock_buffer(bh); | |
301 | memset(bh->b_data, 0, inode->i_sb->s_blocksize); | |
302 | set_buffer_uptodate(bh); | |
303 | mark_buffer_dirty(bh); | |
304 | unlock_buffer(bh); | |
305 | if (IS_SYNC(inode) || sync) | |
306 | sync_dirty_buffer(bh); | |
307 | brelse(bh); | |
308 | } | |
309 | } | |
310 | ||
6ef4d6bf ED |
311 | unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment, |
312 | unsigned goal, unsigned count, int * err, struct page *locked_page) | |
1da177e4 LT |
313 | { |
314 | struct super_block * sb; | |
315 | struct ufs_sb_private_info * uspi; | |
316 | struct ufs_super_block_first * usb1; | |
6ef4d6bf | 317 | unsigned cgno, oldcount, newcount, tmp, request, result; |
1da177e4 | 318 | |
abf5d15f | 319 | UFSD("ENTER, ino %lu, fragment %u, goal %u, count %u\n", inode->i_ino, fragment, goal, count); |
1da177e4 LT |
320 | |
321 | sb = inode->i_sb; | |
322 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 323 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 LT |
324 | *err = -ENOSPC; |
325 | ||
326 | lock_super (sb); | |
327 | ||
328 | tmp = fs32_to_cpu(sb, *p); | |
329 | if (count + ufs_fragnum(fragment) > uspi->s_fpb) { | |
330 | ufs_warning (sb, "ufs_new_fragments", "internal warning" | |
331 | " fragment %u, count %u", fragment, count); | |
332 | count = uspi->s_fpb - ufs_fragnum(fragment); | |
333 | } | |
334 | oldcount = ufs_fragnum (fragment); | |
335 | newcount = oldcount + count; | |
336 | ||
337 | /* | |
338 | * Somebody else has just allocated our fragments | |
339 | */ | |
340 | if (oldcount) { | |
341 | if (!tmp) { | |
342 | ufs_error (sb, "ufs_new_fragments", "internal error, " | |
343 | "fragment %u, tmp %u\n", fragment, tmp); | |
344 | unlock_super (sb); | |
345 | return (unsigned)-1; | |
346 | } | |
347 | if (fragment < UFS_I(inode)->i_lastfrag) { | |
abf5d15f | 348 | UFSD("EXIT (ALREADY ALLOCATED)\n"); |
1da177e4 LT |
349 | unlock_super (sb); |
350 | return 0; | |
351 | } | |
352 | } | |
353 | else { | |
354 | if (tmp) { | |
abf5d15f | 355 | UFSD("EXIT (ALREADY ALLOCATED)\n"); |
1da177e4 LT |
356 | unlock_super(sb); |
357 | return 0; | |
358 | } | |
359 | } | |
360 | ||
361 | /* | |
362 | * There is not enough space for user on the device | |
363 | */ | |
ee3ffd6c | 364 | if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) { |
1da177e4 | 365 | unlock_super (sb); |
abf5d15f | 366 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
367 | return 0; |
368 | } | |
369 | ||
370 | if (goal >= uspi->s_size) | |
371 | goal = 0; | |
372 | if (goal == 0) | |
373 | cgno = ufs_inotocg (inode->i_ino); | |
374 | else | |
375 | cgno = ufs_dtog (goal); | |
376 | ||
377 | /* | |
378 | * allocate new fragment | |
379 | */ | |
380 | if (oldcount == 0) { | |
381 | result = ufs_alloc_fragments (inode, cgno, goal, count, err); | |
382 | if (result) { | |
383 | *p = cpu_to_fs32(sb, result); | |
384 | *err = 0; | |
1da177e4 | 385 | UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count); |
d63b7090 ED |
386 | ufs_clear_frags(inode, result + oldcount, newcount - oldcount, |
387 | locked_page != NULL); | |
1da177e4 LT |
388 | } |
389 | unlock_super(sb); | |
abf5d15f | 390 | UFSD("EXIT, result %u\n", result); |
1da177e4 LT |
391 | return result; |
392 | } | |
393 | ||
394 | /* | |
395 | * resize block | |
396 | */ | |
397 | result = ufs_add_fragments (inode, tmp, oldcount, newcount, err); | |
398 | if (result) { | |
399 | *err = 0; | |
1da177e4 | 400 | UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count); |
d63b7090 ED |
401 | ufs_clear_frags(inode, result + oldcount, newcount - oldcount, |
402 | locked_page != NULL); | |
1da177e4 | 403 | unlock_super(sb); |
abf5d15f | 404 | UFSD("EXIT, result %u\n", result); |
1da177e4 LT |
405 | return result; |
406 | } | |
407 | ||
408 | /* | |
409 | * allocate new block and move data | |
410 | */ | |
411 | switch (fs32_to_cpu(sb, usb1->fs_optim)) { | |
412 | case UFS_OPTSPACE: | |
413 | request = newcount; | |
ee3ffd6c ED |
414 | if (uspi->s_minfree < 5 || uspi->cs_total.cs_nffree |
415 | > uspi->s_dsize * uspi->s_minfree / (2 * 100)) | |
1da177e4 LT |
416 | break; |
417 | usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTTIME); | |
418 | break; | |
419 | default: | |
420 | usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTTIME); | |
421 | ||
422 | case UFS_OPTTIME: | |
423 | request = uspi->s_fpb; | |
ee3ffd6c | 424 | if (uspi->cs_total.cs_nffree < uspi->s_dsize * |
1da177e4 LT |
425 | (uspi->s_minfree - 2) / 100) |
426 | break; | |
427 | usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTTIME); | |
428 | break; | |
429 | } | |
430 | result = ufs_alloc_fragments (inode, cgno, goal, request, err); | |
431 | if (result) { | |
efee2b81 ED |
432 | ufs_clear_frags(inode, result + oldcount, newcount - oldcount, |
433 | locked_page != NULL); | |
f3914758 ED |
434 | ufs_change_blocknr(inode, fragment - oldcount, oldcount, tmp, |
435 | result, locked_page); | |
6ef4d6bf | 436 | |
1da177e4 LT |
437 | *p = cpu_to_fs32(sb, result); |
438 | *err = 0; | |
1da177e4 | 439 | UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count); |
1da177e4 LT |
440 | unlock_super(sb); |
441 | if (newcount < request) | |
442 | ufs_free_fragments (inode, result + newcount, request - newcount); | |
443 | ufs_free_fragments (inode, tmp, oldcount); | |
abf5d15f | 444 | UFSD("EXIT, result %u\n", result); |
1da177e4 LT |
445 | return result; |
446 | } | |
447 | ||
448 | unlock_super(sb); | |
abf5d15f | 449 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
450 | return 0; |
451 | } | |
452 | ||
453 | static unsigned | |
454 | ufs_add_fragments (struct inode * inode, unsigned fragment, | |
455 | unsigned oldcount, unsigned newcount, int * err) | |
456 | { | |
457 | struct super_block * sb; | |
458 | struct ufs_sb_private_info * uspi; | |
459 | struct ufs_super_block_first * usb1; | |
460 | struct ufs_cg_private_info * ucpi; | |
461 | struct ufs_cylinder_group * ucg; | |
462 | unsigned cgno, fragno, fragoff, count, fragsize, i; | |
463 | ||
abf5d15f | 464 | UFSD("ENTER, fragment %u, oldcount %u, newcount %u\n", fragment, oldcount, newcount); |
1da177e4 LT |
465 | |
466 | sb = inode->i_sb; | |
467 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 468 | usb1 = ubh_get_usb_first (uspi); |
1da177e4 LT |
469 | count = newcount - oldcount; |
470 | ||
471 | cgno = ufs_dtog(fragment); | |
472 | if (fs32_to_cpu(sb, UFS_SB(sb)->fs_cs(cgno).cs_nffree) < count) | |
473 | return 0; | |
474 | if ((ufs_fragnum (fragment) + newcount) > uspi->s_fpb) | |
475 | return 0; | |
476 | ucpi = ufs_load_cylinder (sb, cgno); | |
477 | if (!ucpi) | |
478 | return 0; | |
9695ef16 | 479 | ucg = ubh_get_ucg (UCPI_UBH(ucpi)); |
1da177e4 LT |
480 | if (!ufs_cg_chkmagic(sb, ucg)) { |
481 | ufs_panic (sb, "ufs_add_fragments", | |
482 | "internal error, bad magic number on cg %u", cgno); | |
483 | return 0; | |
484 | } | |
485 | ||
486 | fragno = ufs_dtogd (fragment); | |
487 | fragoff = ufs_fragnum (fragno); | |
488 | for (i = oldcount; i < newcount; i++) | |
9695ef16 | 489 | if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i)) |
1da177e4 LT |
490 | return 0; |
491 | /* | |
492 | * Block can be extended | |
493 | */ | |
494 | ucg->cg_time = cpu_to_fs32(sb, get_seconds()); | |
495 | for (i = newcount; i < (uspi->s_fpb - fragoff); i++) | |
9695ef16 | 496 | if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i)) |
1da177e4 LT |
497 | break; |
498 | fragsize = i - oldcount; | |
499 | if (!fs32_to_cpu(sb, ucg->cg_frsum[fragsize])) | |
500 | ufs_panic (sb, "ufs_add_fragments", | |
501 | "internal error or corrupted bitmap on cg %u", cgno); | |
502 | fs32_sub(sb, &ucg->cg_frsum[fragsize], 1); | |
503 | if (fragsize != count) | |
504 | fs32_add(sb, &ucg->cg_frsum[fragsize - count], 1); | |
505 | for (i = oldcount; i < newcount; i++) | |
9695ef16 | 506 | ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i); |
1da177e4 LT |
507 | if(DQUOT_ALLOC_BLOCK(inode, count)) { |
508 | *err = -EDQUOT; | |
509 | return 0; | |
510 | } | |
511 | ||
512 | fs32_sub(sb, &ucg->cg_cs.cs_nffree, count); | |
513 | fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count); | |
ee3ffd6c | 514 | uspi->cs_total.cs_nffree -= count; |
1da177e4 | 515 | |
9695ef16 ED |
516 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
517 | ubh_mark_buffer_dirty (UCPI_UBH(ucpi)); | |
1da177e4 | 518 | if (sb->s_flags & MS_SYNCHRONOUS) { |
098d5af7 | 519 | ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi)); |
9695ef16 | 520 | ubh_wait_on_buffer (UCPI_UBH(ucpi)); |
1da177e4 LT |
521 | } |
522 | sb->s_dirt = 1; | |
523 | ||
abf5d15f | 524 | UFSD("EXIT, fragment %u\n", fragment); |
1da177e4 LT |
525 | |
526 | return fragment; | |
527 | } | |
528 | ||
529 | #define UFS_TEST_FREE_SPACE_CG \ | |
530 | ucg = (struct ufs_cylinder_group *) UFS_SB(sb)->s_ucg[cgno]->b_data; \ | |
531 | if (fs32_to_cpu(sb, ucg->cg_cs.cs_nbfree)) \ | |
532 | goto cg_found; \ | |
533 | for (k = count; k < uspi->s_fpb; k++) \ | |
534 | if (fs32_to_cpu(sb, ucg->cg_frsum[k])) \ | |
535 | goto cg_found; | |
536 | ||
537 | static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno, | |
538 | unsigned goal, unsigned count, int * err) | |
539 | { | |
540 | struct super_block * sb; | |
541 | struct ufs_sb_private_info * uspi; | |
542 | struct ufs_super_block_first * usb1; | |
543 | struct ufs_cg_private_info * ucpi; | |
544 | struct ufs_cylinder_group * ucg; | |
545 | unsigned oldcg, i, j, k, result, allocsize; | |
546 | ||
abf5d15f | 547 | UFSD("ENTER, ino %lu, cgno %u, goal %u, count %u\n", inode->i_ino, cgno, goal, count); |
1da177e4 LT |
548 | |
549 | sb = inode->i_sb; | |
550 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 551 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 LT |
552 | oldcg = cgno; |
553 | ||
554 | /* | |
555 | * 1. searching on preferred cylinder group | |
556 | */ | |
557 | UFS_TEST_FREE_SPACE_CG | |
558 | ||
559 | /* | |
560 | * 2. quadratic rehash | |
561 | */ | |
562 | for (j = 1; j < uspi->s_ncg; j *= 2) { | |
563 | cgno += j; | |
564 | if (cgno >= uspi->s_ncg) | |
565 | cgno -= uspi->s_ncg; | |
566 | UFS_TEST_FREE_SPACE_CG | |
567 | } | |
568 | ||
569 | /* | |
570 | * 3. brute force search | |
571 | * We start at i = 2 ( 0 is checked at 1.step, 1 at 2.step ) | |
572 | */ | |
573 | cgno = (oldcg + 1) % uspi->s_ncg; | |
574 | for (j = 2; j < uspi->s_ncg; j++) { | |
575 | cgno++; | |
576 | if (cgno >= uspi->s_ncg) | |
577 | cgno = 0; | |
578 | UFS_TEST_FREE_SPACE_CG | |
579 | } | |
580 | ||
abf5d15f | 581 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
582 | return 0; |
583 | ||
584 | cg_found: | |
585 | ucpi = ufs_load_cylinder (sb, cgno); | |
586 | if (!ucpi) | |
587 | return 0; | |
9695ef16 | 588 | ucg = ubh_get_ucg (UCPI_UBH(ucpi)); |
1da177e4 LT |
589 | if (!ufs_cg_chkmagic(sb, ucg)) |
590 | ufs_panic (sb, "ufs_alloc_fragments", | |
591 | "internal error, bad magic number on cg %u", cgno); | |
592 | ucg->cg_time = cpu_to_fs32(sb, get_seconds()); | |
593 | ||
594 | if (count == uspi->s_fpb) { | |
595 | result = ufs_alloccg_block (inode, ucpi, goal, err); | |
596 | if (result == (unsigned)-1) | |
597 | return 0; | |
598 | goto succed; | |
599 | } | |
600 | ||
601 | for (allocsize = count; allocsize < uspi->s_fpb; allocsize++) | |
602 | if (fs32_to_cpu(sb, ucg->cg_frsum[allocsize]) != 0) | |
603 | break; | |
604 | ||
605 | if (allocsize == uspi->s_fpb) { | |
606 | result = ufs_alloccg_block (inode, ucpi, goal, err); | |
607 | if (result == (unsigned)-1) | |
608 | return 0; | |
609 | goal = ufs_dtogd (result); | |
610 | for (i = count; i < uspi->s_fpb; i++) | |
9695ef16 | 611 | ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i); |
1da177e4 LT |
612 | i = uspi->s_fpb - count; |
613 | DQUOT_FREE_BLOCK(inode, i); | |
614 | ||
615 | fs32_add(sb, &ucg->cg_cs.cs_nffree, i); | |
ee3ffd6c | 616 | uspi->cs_total.cs_nffree += i; |
1da177e4 LT |
617 | fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, i); |
618 | fs32_add(sb, &ucg->cg_frsum[i], 1); | |
619 | goto succed; | |
620 | } | |
621 | ||
622 | result = ufs_bitmap_search (sb, ucpi, goal, allocsize); | |
623 | if (result == (unsigned)-1) | |
624 | return 0; | |
625 | if(DQUOT_ALLOC_BLOCK(inode, count)) { | |
626 | *err = -EDQUOT; | |
627 | return 0; | |
628 | } | |
629 | for (i = 0; i < count; i++) | |
9695ef16 | 630 | ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, result + i); |
1da177e4 LT |
631 | |
632 | fs32_sub(sb, &ucg->cg_cs.cs_nffree, count); | |
ee3ffd6c | 633 | uspi->cs_total.cs_nffree -= count; |
1da177e4 LT |
634 | fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count); |
635 | fs32_sub(sb, &ucg->cg_frsum[allocsize], 1); | |
636 | ||
637 | if (count != allocsize) | |
638 | fs32_add(sb, &ucg->cg_frsum[allocsize - count], 1); | |
639 | ||
640 | succed: | |
9695ef16 ED |
641 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
642 | ubh_mark_buffer_dirty (UCPI_UBH(ucpi)); | |
1da177e4 | 643 | if (sb->s_flags & MS_SYNCHRONOUS) { |
098d5af7 | 644 | ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi)); |
9695ef16 | 645 | ubh_wait_on_buffer (UCPI_UBH(ucpi)); |
1da177e4 LT |
646 | } |
647 | sb->s_dirt = 1; | |
648 | ||
649 | result += cgno * uspi->s_fpg; | |
abf5d15f | 650 | UFSD("EXIT3, result %u\n", result); |
1da177e4 LT |
651 | return result; |
652 | } | |
653 | ||
654 | static unsigned ufs_alloccg_block (struct inode * inode, | |
655 | struct ufs_cg_private_info * ucpi, unsigned goal, int * err) | |
656 | { | |
657 | struct super_block * sb; | |
658 | struct ufs_sb_private_info * uspi; | |
659 | struct ufs_super_block_first * usb1; | |
660 | struct ufs_cylinder_group * ucg; | |
661 | unsigned result, cylno, blkno; | |
662 | ||
abf5d15f | 663 | UFSD("ENTER, goal %u\n", goal); |
1da177e4 LT |
664 | |
665 | sb = inode->i_sb; | |
666 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 667 | usb1 = ubh_get_usb_first(uspi); |
9695ef16 | 668 | ucg = ubh_get_ucg(UCPI_UBH(ucpi)); |
1da177e4 LT |
669 | |
670 | if (goal == 0) { | |
671 | goal = ucpi->c_rotor; | |
672 | goto norot; | |
673 | } | |
674 | goal = ufs_blknum (goal); | |
675 | goal = ufs_dtogd (goal); | |
676 | ||
677 | /* | |
678 | * If the requested block is available, use it. | |
679 | */ | |
9695ef16 | 680 | if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, ufs_fragstoblks(goal))) { |
1da177e4 LT |
681 | result = goal; |
682 | goto gotit; | |
683 | } | |
684 | ||
685 | norot: | |
686 | result = ufs_bitmap_search (sb, ucpi, goal, uspi->s_fpb); | |
687 | if (result == (unsigned)-1) | |
688 | return (unsigned)-1; | |
689 | ucpi->c_rotor = result; | |
690 | gotit: | |
691 | blkno = ufs_fragstoblks(result); | |
9695ef16 | 692 | ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno); |
1da177e4 LT |
693 | if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD) |
694 | ufs_clusteracct (sb, ucpi, blkno, -1); | |
695 | if(DQUOT_ALLOC_BLOCK(inode, uspi->s_fpb)) { | |
696 | *err = -EDQUOT; | |
697 | return (unsigned)-1; | |
698 | } | |
699 | ||
700 | fs32_sub(sb, &ucg->cg_cs.cs_nbfree, 1); | |
ee3ffd6c | 701 | uspi->cs_total.cs_nbfree--; |
1da177e4 LT |
702 | fs32_sub(sb, &UFS_SB(sb)->fs_cs(ucpi->c_cgx).cs_nbfree, 1); |
703 | cylno = ufs_cbtocylno(result); | |
704 | fs16_sub(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(result)), 1); | |
705 | fs32_sub(sb, &ubh_cg_blktot(ucpi, cylno), 1); | |
706 | ||
abf5d15f | 707 | UFSD("EXIT, result %u\n", result); |
1da177e4 LT |
708 | |
709 | return result; | |
710 | } | |
711 | ||
3e41f597 ED |
712 | static unsigned ubh_scanc(struct ufs_sb_private_info *uspi, |
713 | struct ufs_buffer_head *ubh, | |
714 | unsigned begin, unsigned size, | |
715 | unsigned char *table, unsigned char mask) | |
1da177e4 | 716 | { |
3e41f597 ED |
717 | unsigned rest, offset; |
718 | unsigned char *cp; | |
1da177e4 | 719 | |
1da177e4 | 720 | |
3e41f597 ED |
721 | offset = begin & ~uspi->s_fmask; |
722 | begin >>= uspi->s_fshift; | |
723 | for (;;) { | |
724 | if ((offset + size) < uspi->s_fsize) | |
725 | rest = size; | |
726 | else | |
727 | rest = uspi->s_fsize - offset; | |
728 | size -= rest; | |
729 | cp = ubh->bh[begin]->b_data + offset; | |
730 | while ((table[*cp++] & mask) == 0 && --rest) | |
731 | ; | |
732 | if (rest || !size) | |
733 | break; | |
734 | begin++; | |
735 | offset = 0; | |
736 | } | |
737 | return (size + rest); | |
738 | } | |
739 | ||
740 | /* | |
741 | * Find a block of the specified size in the specified cylinder group. | |
742 | * @sp: pointer to super block | |
743 | * @ucpi: pointer to cylinder group info | |
744 | * @goal: near which block we want find new one | |
745 | * @count: specified size | |
746 | */ | |
747 | static unsigned ufs_bitmap_search(struct super_block *sb, | |
748 | struct ufs_cg_private_info *ucpi, | |
749 | unsigned goal, unsigned count) | |
750 | { | |
751 | /* | |
752 | * Bit patterns for identifying fragments in the block map | |
753 | * used as ((map & mask_arr) == want_arr) | |
754 | */ | |
755 | static const int mask_arr[9] = { | |
756 | 0x3, 0x7, 0xf, 0x1f, 0x3f, 0x7f, 0xff, 0x1ff, 0x3ff | |
757 | }; | |
758 | static const int want_arr[9] = { | |
759 | 0x0, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe | |
760 | }; | |
761 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
762 | struct ufs_super_block_first *usb1; | |
763 | struct ufs_cylinder_group *ucg; | |
764 | unsigned start, length, loc, result; | |
765 | unsigned pos, want, blockmap, mask, end; | |
766 | ||
abf5d15f | 767 | UFSD("ENTER, cg %u, goal %u, count %u\n", ucpi->c_cgx, goal, count); |
3e41f597 | 768 | |
7b4ee73e | 769 | usb1 = ubh_get_usb_first (uspi); |
9695ef16 | 770 | ucg = ubh_get_ucg(UCPI_UBH(ucpi)); |
1da177e4 LT |
771 | |
772 | if (goal) | |
773 | start = ufs_dtogd(goal) >> 3; | |
774 | else | |
775 | start = ucpi->c_frotor >> 3; | |
776 | ||
777 | length = ((uspi->s_fpg + 7) >> 3) - start; | |
3e41f597 | 778 | loc = ubh_scanc(uspi, UCPI_UBH(ucpi), ucpi->c_freeoff + start, length, |
1da177e4 LT |
779 | (uspi->s_fpb == 8) ? ufs_fragtable_8fpb : ufs_fragtable_other, |
780 | 1 << (count - 1 + (uspi->s_fpb & 7))); | |
3e41f597 | 781 | if (loc == 0) { |
1da177e4 | 782 | length = start + 1; |
3e41f597 ED |
783 | loc = ubh_scanc(uspi, UCPI_UBH(ucpi), ucpi->c_freeoff, length, |
784 | (uspi->s_fpb == 8) ? ufs_fragtable_8fpb : | |
785 | ufs_fragtable_other, | |
786 | 1 << (count - 1 + (uspi->s_fpb & 7))); | |
787 | if (loc == 0) { | |
788 | ufs_error(sb, "ufs_bitmap_search", | |
789 | "bitmap corrupted on cg %u, start %u," | |
790 | " length %u, count %u, freeoff %u\n", | |
791 | ucpi->c_cgx, start, length, count, | |
792 | ucpi->c_freeoff); | |
1da177e4 LT |
793 | return (unsigned)-1; |
794 | } | |
795 | start = 0; | |
796 | } | |
3e41f597 | 797 | result = (start + length - loc) << 3; |
1da177e4 LT |
798 | ucpi->c_frotor = result; |
799 | ||
800 | /* | |
801 | * found the byte in the map | |
802 | */ | |
3e41f597 ED |
803 | |
804 | for (end = result + 8; result < end; result += uspi->s_fpb) { | |
805 | blockmap = ubh_blkmap(UCPI_UBH(ucpi), ucpi->c_freeoff, result); | |
806 | blockmap <<= 1; | |
807 | mask = mask_arr[count]; | |
808 | want = want_arr[count]; | |
809 | for (pos = 0; pos <= uspi->s_fpb - count; pos++) { | |
810 | if ((blockmap & mask) == want) { | |
abf5d15f | 811 | UFSD("EXIT, result %u\n", result); |
3e41f597 ED |
812 | return result + pos; |
813 | } | |
814 | mask <<= 1; | |
815 | want <<= 1; | |
816 | } | |
817 | } | |
818 | ||
819 | ufs_error(sb, "ufs_bitmap_search", "block not in map on cg %u\n", | |
820 | ucpi->c_cgx); | |
abf5d15f | 821 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
822 | return (unsigned)-1; |
823 | } | |
824 | ||
825 | static void ufs_clusteracct(struct super_block * sb, | |
826 | struct ufs_cg_private_info * ucpi, unsigned blkno, int cnt) | |
827 | { | |
828 | struct ufs_sb_private_info * uspi; | |
829 | int i, start, end, forw, back; | |
830 | ||
831 | uspi = UFS_SB(sb)->s_uspi; | |
832 | if (uspi->s_contigsumsize <= 0) | |
833 | return; | |
834 | ||
835 | if (cnt > 0) | |
9695ef16 | 836 | ubh_setbit(UCPI_UBH(ucpi), ucpi->c_clusteroff, blkno); |
1da177e4 | 837 | else |
9695ef16 | 838 | ubh_clrbit(UCPI_UBH(ucpi), ucpi->c_clusteroff, blkno); |
1da177e4 LT |
839 | |
840 | /* | |
841 | * Find the size of the cluster going forward. | |
842 | */ | |
843 | start = blkno + 1; | |
844 | end = start + uspi->s_contigsumsize; | |
845 | if ( end >= ucpi->c_nclusterblks) | |
846 | end = ucpi->c_nclusterblks; | |
9695ef16 | 847 | i = ubh_find_next_zero_bit (UCPI_UBH(ucpi), ucpi->c_clusteroff, end, start); |
1da177e4 LT |
848 | if (i > end) |
849 | i = end; | |
850 | forw = i - start; | |
851 | ||
852 | /* | |
853 | * Find the size of the cluster going backward. | |
854 | */ | |
855 | start = blkno - 1; | |
856 | end = start - uspi->s_contigsumsize; | |
857 | if (end < 0 ) | |
858 | end = -1; | |
9695ef16 | 859 | i = ubh_find_last_zero_bit (UCPI_UBH(ucpi), ucpi->c_clusteroff, start, end); |
1da177e4 LT |
860 | if ( i < end) |
861 | i = end; | |
862 | back = start - i; | |
863 | ||
864 | /* | |
865 | * Account for old cluster and the possibly new forward and | |
866 | * back clusters. | |
867 | */ | |
868 | i = back + forw + 1; | |
869 | if (i > uspi->s_contigsumsize) | |
870 | i = uspi->s_contigsumsize; | |
9695ef16 | 871 | fs32_add(sb, (__fs32*)ubh_get_addr(UCPI_UBH(ucpi), ucpi->c_clustersumoff + (i << 2)), cnt); |
1da177e4 | 872 | if (back > 0) |
9695ef16 | 873 | fs32_sub(sb, (__fs32*)ubh_get_addr(UCPI_UBH(ucpi), ucpi->c_clustersumoff + (back << 2)), cnt); |
1da177e4 | 874 | if (forw > 0) |
9695ef16 | 875 | fs32_sub(sb, (__fs32*)ubh_get_addr(UCPI_UBH(ucpi), ucpi->c_clustersumoff + (forw << 2)), cnt); |
1da177e4 LT |
876 | } |
877 | ||
878 | ||
879 | static unsigned char ufs_fragtable_8fpb[] = { | |
880 | 0x00, 0x01, 0x01, 0x02, 0x01, 0x01, 0x02, 0x04, 0x01, 0x01, 0x01, 0x03, 0x02, 0x03, 0x04, 0x08, | |
881 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x02, 0x03, 0x03, 0x02, 0x04, 0x05, 0x08, 0x10, | |
882 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09, | |
883 | 0x02, 0x03, 0x03, 0x02, 0x03, 0x03, 0x02, 0x06, 0x04, 0x05, 0x05, 0x06, 0x08, 0x09, 0x10, 0x20, | |
884 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09, | |
885 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x03, 0x03, 0x03, 0x03, 0x05, 0x05, 0x09, 0x11, | |
886 | 0x02, 0x03, 0x03, 0x02, 0x03, 0x03, 0x02, 0x06, 0x03, 0x03, 0x03, 0x03, 0x02, 0x03, 0x06, 0x0A, | |
887 | 0x04, 0x05, 0x05, 0x06, 0x05, 0x05, 0x06, 0x04, 0x08, 0x09, 0x09, 0x0A, 0x10, 0x11, 0x20, 0x40, | |
888 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09, | |
889 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x03, 0x03, 0x03, 0x03, 0x05, 0x05, 0x09, 0x11, | |
890 | 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09, | |
891 | 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x07, 0x05, 0x05, 0x05, 0x07, 0x09, 0x09, 0x11, 0x21, | |
892 | 0x02, 0x03, 0x03, 0x02, 0x03, 0x03, 0x02, 0x06, 0x03, 0x03, 0x03, 0x03, 0x02, 0x03, 0x06, 0x0A, | |
893 | 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x07, 0x02, 0x03, 0x03, 0x02, 0x06, 0x07, 0x0A, 0x12, | |
894 | 0x04, 0x05, 0x05, 0x06, 0x05, 0x05, 0x06, 0x04, 0x05, 0x05, 0x05, 0x07, 0x06, 0x07, 0x04, 0x0C, | |
895 | 0x08, 0x09, 0x09, 0x0A, 0x09, 0x09, 0x0A, 0x0C, 0x10, 0x11, 0x11, 0x12, 0x20, 0x21, 0x40, 0x80, | |
896 | }; | |
897 | ||
898 | static unsigned char ufs_fragtable_other[] = { | |
899 | 0x00, 0x16, 0x16, 0x2A, 0x16, 0x16, 0x26, 0x4E, 0x16, 0x16, 0x16, 0x3E, 0x2A, 0x3E, 0x4E, 0x8A, | |
900 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
901 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
902 | 0x2A, 0x3E, 0x3E, 0x2A, 0x3E, 0x3E, 0x2E, 0x6E, 0x3E, 0x3E, 0x3E, 0x3E, 0x2A, 0x3E, 0x6E, 0xAA, | |
903 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
904 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
905 | 0x26, 0x36, 0x36, 0x2E, 0x36, 0x36, 0x26, 0x6E, 0x36, 0x36, 0x36, 0x3E, 0x2E, 0x3E, 0x6E, 0xAE, | |
906 | 0x4E, 0x5E, 0x5E, 0x6E, 0x5E, 0x5E, 0x6E, 0x4E, 0x5E, 0x5E, 0x5E, 0x7E, 0x6E, 0x7E, 0x4E, 0xCE, | |
907 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
908 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
909 | 0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E, | |
910 | 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0xBE, | |
911 | 0x2A, 0x3E, 0x3E, 0x2A, 0x3E, 0x3E, 0x2E, 0x6E, 0x3E, 0x3E, 0x3E, 0x3E, 0x2A, 0x3E, 0x6E, 0xAA, | |
912 | 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0xBE, | |
913 | 0x4E, 0x5E, 0x5E, 0x6E, 0x5E, 0x5E, 0x6E, 0x4E, 0x5E, 0x5E, 0x5E, 0x7E, 0x6E, 0x7E, 0x4E, 0xCE, | |
914 | 0x8A, 0x9E, 0x9E, 0xAA, 0x9E, 0x9E, 0xAE, 0xCE, 0x9E, 0x9E, 0x9E, 0xBE, 0xAA, 0xBE, 0xCE, 0x8A, | |
915 | }; |