Lines Matching +full:d +full:- +full:cache +full:- +full:block +full:- +full:size
1 // SPDX-License-Identifier: GPL-2.0
5 * (c) 1996 Hans-Joachim Widmaier - Rewritten
7 * (C) 1993 Ray Burr - Modified for Amiga FFS filesystem.
11 * (C) 1991 Linus Torvalds - minix filesystem
25 pr_debug("open(%lu,%d)\n", in affs_file_open()
26 inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); in affs_file_open()
27 atomic_inc(&AFFS_I(inode)->i_opencnt); in affs_file_open()
34 pr_debug("release(%lu, %d)\n", in affs_file_release()
35 inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); in affs_file_release()
37 if (atomic_dec_and_test(&AFFS_I(inode)->i_opencnt)) { in affs_file_release()
39 if (inode->i_size != AFFS_I(inode)->mmu_private) in affs_file_release()
51 struct super_block *sb = inode->i_sb; in affs_grow_extcache()
56 if (!AFFS_I(inode)->i_lc) { in affs_grow_extcache()
59 return -ENOMEM; in affs_grow_extcache()
60 AFFS_I(inode)->i_lc = (u32 *)ptr; in affs_grow_extcache()
61 AFFS_I(inode)->i_ac = (struct affs_ext_key *)(ptr + AFFS_CACHE_SIZE / 2); in affs_grow_extcache()
64 lc_max = AFFS_LC_SIZE << AFFS_I(inode)->i_lc_shift; in affs_grow_extcache()
66 if (AFFS_I(inode)->i_extcnt > lc_max) { in affs_grow_extcache()
69 /* need to recalculate linear cache, start from old size */ in affs_grow_extcache()
70 lc_shift = AFFS_I(inode)->i_lc_shift; in affs_grow_extcache()
71 tmp = (AFFS_I(inode)->i_extcnt / AFFS_LC_SIZE) >> lc_shift; in affs_grow_extcache()
74 lc_mask = (1 << lc_shift) - 1; in affs_grow_extcache()
76 /* fix idx and old size to new shift */ in affs_grow_extcache()
77 lc_idx >>= (lc_shift - AFFS_I(inode)->i_lc_shift); in affs_grow_extcache()
78 AFFS_I(inode)->i_lc_size >>= (lc_shift - AFFS_I(inode)->i_lc_shift); in affs_grow_extcache()
80 /* first shrink old cache to make more space */ in affs_grow_extcache()
81 off = 1 << (lc_shift - AFFS_I(inode)->i_lc_shift); in affs_grow_extcache()
83 AFFS_I(inode)->i_ac[i] = AFFS_I(inode)->i_ac[j]; in affs_grow_extcache()
85 AFFS_I(inode)->i_lc_shift = lc_shift; in affs_grow_extcache()
86 AFFS_I(inode)->i_lc_mask = lc_mask; in affs_grow_extcache()
89 /* fill cache to the needed index */ in affs_grow_extcache()
90 i = AFFS_I(inode)->i_lc_size; in affs_grow_extcache()
91 AFFS_I(inode)->i_lc_size = lc_idx + 1; in affs_grow_extcache()
94 AFFS_I(inode)->i_lc[0] = inode->i_ino; in affs_grow_extcache()
97 key = AFFS_I(inode)->i_lc[i - 1]; in affs_grow_extcache()
98 j = AFFS_I(inode)->i_lc_mask + 1; in affs_grow_extcache()
99 // unlock cache in affs_grow_extcache()
100 for (; j > 0; j--) { in affs_grow_extcache()
104 key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension); in affs_grow_extcache()
107 // lock cache in affs_grow_extcache()
108 AFFS_I(inode)->i_lc[i] = key; in affs_grow_extcache()
114 // lock cache in affs_grow_extcache()
115 return -EIO; in affs_grow_extcache()
121 struct super_block *sb = inode->i_sb; in affs_alloc_extblock()
125 blocknr = affs_alloc_block(inode, bh->b_blocknr); in affs_alloc_extblock()
127 return ERR_PTR(-ENOSPC); in affs_alloc_extblock()
132 return ERR_PTR(-EIO); in affs_alloc_extblock()
135 AFFS_HEAD(new_bh)->ptype = cpu_to_be32(T_LIST); in affs_alloc_extblock()
136 AFFS_HEAD(new_bh)->key = cpu_to_be32(blocknr); in affs_alloc_extblock()
137 AFFS_TAIL(sb, new_bh)->stype = cpu_to_be32(ST_FILE); in affs_alloc_extblock()
138 AFFS_TAIL(sb, new_bh)->parent = cpu_to_be32(inode->i_ino); in affs_alloc_extblock()
143 tmp = be32_to_cpu(AFFS_TAIL(sb, bh)->extension); in affs_alloc_extblock()
146 AFFS_TAIL(sb, bh)->extension = cpu_to_be32(blocknr); in affs_alloc_extblock()
147 affs_adjust_checksum(bh, blocknr - tmp); in affs_alloc_extblock()
150 AFFS_I(inode)->i_extcnt++; in affs_alloc_extblock()
159 /* inline the simplest case: same extended block as last time */ in affs_get_extblock()
160 struct buffer_head *bh = AFFS_I(inode)->i_ext_bh; in affs_get_extblock()
161 if (ext == AFFS_I(inode)->i_ext_last) in affs_get_extblock()
173 struct super_block *sb = inode->i_sb; in affs_get_extblock_slow()
179 if (ext == AFFS_I(inode)->i_ext_last + 1) { in affs_get_extblock_slow()
180 /* read the next extended block from the current one */ in affs_get_extblock_slow()
181 bh = AFFS_I(inode)->i_ext_bh; in affs_get_extblock_slow()
182 ext_key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension); in affs_get_extblock_slow()
183 if (ext < AFFS_I(inode)->i_extcnt) in affs_get_extblock_slow()
185 BUG_ON(ext > AFFS_I(inode)->i_extcnt); in affs_get_extblock_slow()
193 /* we seek back to the file header block */ in affs_get_extblock_slow()
194 ext_key = inode->i_ino; in affs_get_extblock_slow()
198 if (ext >= AFFS_I(inode)->i_extcnt) { in affs_get_extblock_slow()
201 /* allocate a new extended block */ in affs_get_extblock_slow()
202 BUG_ON(ext > AFFS_I(inode)->i_extcnt); in affs_get_extblock_slow()
204 /* get previous extended block */ in affs_get_extblock_slow()
205 prev_bh = affs_get_extblock(inode, ext - 1); in affs_get_extblock_slow()
216 /* check if there is an extended cache and whether it's large enough */ in affs_get_extblock_slow()
217 lc_idx = ext >> AFFS_I(inode)->i_lc_shift; in affs_get_extblock_slow()
218 lc_off = ext & AFFS_I(inode)->i_lc_mask; in affs_get_extblock_slow()
220 if (lc_idx >= AFFS_I(inode)->i_lc_size) { in affs_get_extblock_slow()
229 /* every n'th key we find in the linear cache */ in affs_get_extblock_slow()
231 ext_key = AFFS_I(inode)->i_lc[lc_idx]; in affs_get_extblock_slow()
235 /* maybe it's still in the associative cache */ in affs_get_extblock_slow()
236 ac_idx = (ext - lc_idx - 1) & AFFS_AC_MASK; in affs_get_extblock_slow()
237 if (AFFS_I(inode)->i_ac[ac_idx].ext == ext) { in affs_get_extblock_slow()
238 ext_key = AFFS_I(inode)->i_ac[ac_idx].key; in affs_get_extblock_slow()
245 while (--tmp, --lc_off > 0) { in affs_get_extblock_slow()
246 idx = (idx - 1) & AFFS_AC_MASK; in affs_get_extblock_slow()
247 if (AFFS_I(inode)->i_ac[idx].ext == tmp) { in affs_get_extblock_slow()
248 ext_key = AFFS_I(inode)->i_ac[idx].key; in affs_get_extblock_slow()
253 /* fall back to the linear cache */ in affs_get_extblock_slow()
254 ext_key = AFFS_I(inode)->i_lc[lc_idx]; in affs_get_extblock_slow()
257 //unlock cache in affs_get_extblock_slow()
262 ext_key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension); in affs_get_extblock_slow()
266 //lock cache in affs_get_extblock_slow()
268 /* store it in the associative cache */ in affs_get_extblock_slow()
270 AFFS_I(inode)->i_ac[ac_idx].ext = ext; in affs_get_extblock_slow()
271 AFFS_I(inode)->i_ac[ac_idx].key = ext_key; in affs_get_extblock_slow()
274 /* finally read the right extended block */ in affs_get_extblock_slow()
275 //unlock cache in affs_get_extblock_slow()
279 //lock cache in affs_get_extblock_slow()
282 /* release old cached extended block and store the new one */ in affs_get_extblock_slow()
283 affs_brelse(AFFS_I(inode)->i_ext_bh); in affs_get_extblock_slow()
284 AFFS_I(inode)->i_ext_last = ext; in affs_get_extblock_slow()
285 AFFS_I(inode)->i_ext_bh = bh; in affs_get_extblock_slow()
292 return ERR_PTR(-EIO); in affs_get_extblock_slow()
296 affs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create) in affs_get_block() argument
298 struct super_block *sb = inode->i_sb; in affs_get_block()
302 pr_debug("%s(%lu, %llu)\n", __func__, inode->i_ino, in affs_get_block()
303 (unsigned long long)block); in affs_get_block()
305 BUG_ON(block > (sector_t)0x7fffffffUL); in affs_get_block()
307 if (block >= AFFS_I(inode)->i_blkcnt) { in affs_get_block()
308 if (block > AFFS_I(inode)->i_blkcnt || !create) in affs_get_block()
313 //lock cache in affs_get_block()
316 ext = (u32)block / AFFS_SB(sb)->s_hashsize; in affs_get_block()
317 block -= ext * AFFS_SB(sb)->s_hashsize; in affs_get_block()
321 map_bh(bh_result, sb, (sector_t)be32_to_cpu(AFFS_BLOCK(sb, ext_bh, block))); in affs_get_block()
324 u32 blocknr = affs_alloc_block(inode, ext_bh->b_blocknr); in affs_get_block()
328 AFFS_I(inode)->mmu_private += AFFS_SB(sb)->s_data_blksize; in affs_get_block()
329 AFFS_I(inode)->i_blkcnt++; in affs_get_block()
331 /* store new block */ in affs_get_block()
332 if (bh_result->b_blocknr) in affs_get_block()
334 "block already set (%llx)", in affs_get_block()
335 (unsigned long long)bh_result->b_blocknr); in affs_get_block()
336 AFFS_BLOCK(sb, ext_bh, block) = cpu_to_be32(blocknr); in affs_get_block()
337 AFFS_HEAD(ext_bh)->block_count = cpu_to_be32(block + 1); in affs_get_block()
338 affs_adjust_checksum(ext_bh, blocknr - bh_result->b_blocknr + 1); in affs_get_block()
339 bh_result->b_blocknr = blocknr; in affs_get_block()
341 if (!block) { in affs_get_block()
342 /* insert first block into header block */ in affs_get_block()
343 u32 tmp = be32_to_cpu(AFFS_HEAD(ext_bh)->first_data); in affs_get_block()
345 affs_warning(sb, "get_block", "first block already set (%d)", tmp); in affs_get_block()
346 AFFS_HEAD(ext_bh)->first_data = cpu_to_be32(blocknr); in affs_get_block()
347 affs_adjust_checksum(ext_bh, blocknr - tmp); in affs_get_block()
352 //unlock cache in affs_get_block()
357 affs_error(inode->i_sb, "get_block", "strange block request %llu", in affs_get_block()
358 (unsigned long long)block); in affs_get_block()
359 return -EIO; in affs_get_block()
361 // unlock cache in affs_get_block()
367 bh_result->b_bdev = NULL; in affs_get_block()
368 // unlock cache in affs_get_block()
370 return -ENOSPC; in affs_get_block()
385 struct inode *inode = mapping->host; in affs_write_failed()
387 if (to > inode->i_size) { in affs_write_failed()
388 truncate_pagecache(inode, inode->i_size); in affs_write_failed()
396 struct file *file = iocb->ki_filp; in affs_direct_IO()
397 struct address_space *mapping = file->f_mapping; in affs_direct_IO()
398 struct inode *inode = mapping->host; in affs_direct_IO()
400 loff_t offset = iocb->ki_pos; in affs_direct_IO()
404 loff_t size = offset + count; in affs_direct_IO() local
406 if (AFFS_I(inode)->mmu_private < size) in affs_direct_IO()
425 &AFFS_I(mapping->host)->mmu_private); in affs_write_begin()
436 struct inode *inode = mapping->host; in affs_write_end()
442 if (AFFS_I(inode)->i_protect & FIBF_ARCHIVED) { in affs_write_end()
443 AFFS_I(inode)->i_protect &= ~FIBF_ARCHIVED; in affs_write_end()
450 static sector_t _affs_bmap(struct address_space *mapping, sector_t block) in _affs_bmap() argument
452 return generic_block_bmap(mapping,block,affs_get_block); in _affs_bmap()
466 affs_bread_ino(struct inode *inode, int block, int create) in affs_bread_ino() argument
472 err = affs_get_block(inode, block, &tmp_bh, create); in affs_bread_ino()
474 bh = affs_bread(inode->i_sb, tmp_bh.b_blocknr); in affs_bread_ino()
476 bh->b_state |= tmp_bh.b_state; in affs_bread_ino()
479 err = -EIO; in affs_bread_ino()
485 affs_getzeroblk_ino(struct inode *inode, int block) in affs_getzeroblk_ino() argument
491 err = affs_get_block(inode, block, &tmp_bh, 1); in affs_getzeroblk_ino()
493 bh = affs_getzeroblk(inode->i_sb, tmp_bh.b_blocknr); in affs_getzeroblk_ino()
495 bh->b_state |= tmp_bh.b_state; in affs_getzeroblk_ino()
498 err = -EIO; in affs_getzeroblk_ino()
504 affs_getemptyblk_ino(struct inode *inode, int block) in affs_getemptyblk_ino() argument
510 err = affs_get_block(inode, block, &tmp_bh, 1); in affs_getemptyblk_ino()
512 bh = affs_getemptyblk(inode->i_sb, tmp_bh.b_blocknr); in affs_getemptyblk_ino()
514 bh->b_state |= tmp_bh.b_state; in affs_getemptyblk_ino()
517 err = -EIO; in affs_getemptyblk_ino()
525 struct inode *inode = page->mapping->host; in affs_do_readpage_ofs()
526 struct super_block *sb = inode->i_sb; in affs_do_readpage_ofs()
533 pr_debug("%s(%lu, %ld, 0, %d)\n", __func__, inode->i_ino, in affs_do_readpage_ofs()
534 page->index, to); in affs_do_readpage_ofs()
536 bsize = AFFS_SB(sb)->s_data_blksize; in affs_do_readpage_ofs()
537 tmp = page->index << PAGE_SHIFT; in affs_do_readpage_ofs()
545 tmp = min(bsize - boff, to - pos); in affs_do_readpage_ofs()
562 struct super_block *sb = inode->i_sb; in affs_extent_file_ofs()
565 u32 size, bsize; in affs_extent_file_ofs() local
568 pr_debug("%s(%lu, %d)\n", __func__, inode->i_ino, newsize); in affs_extent_file_ofs()
569 bsize = AFFS_SB(sb)->s_data_blksize; in affs_extent_file_ofs()
571 size = AFFS_I(inode)->mmu_private; in affs_extent_file_ofs()
572 bidx = size / bsize; in affs_extent_file_ofs()
573 boff = size % bsize; in affs_extent_file_ofs()
578 tmp = min(bsize - boff, newsize - size); in affs_extent_file_ofs()
581 be32_add_cpu(&AFFS_DATA_HEAD(bh)->size, tmp); in affs_extent_file_ofs()
584 size += tmp; in affs_extent_file_ofs()
587 bh = affs_bread_ino(inode, bidx - 1, 0); in affs_extent_file_ofs()
592 while (size < newsize) { in affs_extent_file_ofs()
597 tmp = min(bsize, newsize - size); in affs_extent_file_ofs()
599 AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA); in affs_extent_file_ofs()
600 AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino); in affs_extent_file_ofs()
601 AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx); in affs_extent_file_ofs()
602 AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp); in affs_extent_file_ofs()
604 bh->b_state &= ~(1UL << BH_New); in affs_extent_file_ofs()
607 u32 tmp_next = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next); in affs_extent_file_ofs()
611 "next block already set for %d (%d)", in affs_extent_file_ofs()
613 AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr); in affs_extent_file_ofs()
614 affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next); in affs_extent_file_ofs()
618 size += bsize; in affs_extent_file_ofs()
622 inode->i_size = AFFS_I(inode)->mmu_private = newsize; in affs_extent_file_ofs()
626 inode->i_size = AFFS_I(inode)->mmu_private = newsize; in affs_extent_file_ofs()
633 struct inode *inode = page->mapping->host; in affs_readpage_ofs()
637 pr_debug("%s(%lu, %ld)\n", __func__, inode->i_ino, page->index); in affs_readpage_ofs()
639 if (((page->index + 1) << PAGE_SHIFT) > inode->i_size) { in affs_readpage_ofs()
640 to = inode->i_size & ~PAGE_MASK; in affs_readpage_ofs()
641 memset(page_address(page) + to, 0, PAGE_SIZE - to); in affs_readpage_ofs()
655 struct inode *inode = mapping->host; in affs_write_begin_ofs()
660 pr_debug("%s(%lu, %llu, %llu)\n", __func__, inode->i_ino, pos, in affs_write_begin_ofs()
662 if (pos > AFFS_I(inode)->mmu_private) { in affs_write_begin_ofs()
663 /* XXX: this probably leaves a too-big i_size in case of in affs_write_begin_ofs()
674 return -ENOMEM; in affs_write_begin_ofs()
693 struct inode *inode = mapping->host; in affs_write_end_ofs()
694 struct super_block *sb = inode->i_sb; in affs_write_end_ofs()
702 from = pos & (PAGE_SIZE - 1); in affs_write_end_ofs()
710 pr_debug("%s(%lu, %llu, %llu)\n", __func__, inode->i_ino, pos, in affs_write_end_ofs()
712 bsize = AFFS_SB(sb)->s_data_blksize; in affs_write_end_ofs()
717 tmp = (page->index << PAGE_SHIFT) + from; in affs_write_end_ofs()
726 tmp = min(bsize - boff, to - from); in affs_write_end_ofs()
729 be32_add_cpu(&AFFS_DATA_HEAD(bh)->size, tmp); in affs_write_end_ofs()
736 bh = affs_bread_ino(inode, bidx - 1, 0); in affs_write_end_ofs()
749 AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA); in affs_write_end_ofs()
750 AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino); in affs_write_end_ofs()
751 AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx); in affs_write_end_ofs()
752 AFFS_DATA_HEAD(bh)->size = cpu_to_be32(bsize); in affs_write_end_ofs()
753 AFFS_DATA_HEAD(bh)->next = 0; in affs_write_end_ofs()
754 bh->b_state &= ~(1UL << BH_New); in affs_write_end_ofs()
756 u32 tmp_next = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next); in affs_write_end_ofs()
760 "next block already set for %d (%d)", in affs_write_end_ofs()
762 AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr); in affs_write_end_ofs()
763 affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next); in affs_write_end_ofs()
779 tmp = min(bsize, to - from); in affs_write_end_ofs()
783 AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA); in affs_write_end_ofs()
784 AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino); in affs_write_end_ofs()
785 AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx); in affs_write_end_ofs()
786 AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp); in affs_write_end_ofs()
787 AFFS_DATA_HEAD(bh)->next = 0; in affs_write_end_ofs()
788 bh->b_state &= ~(1UL << BH_New); in affs_write_end_ofs()
790 u32 tmp_next = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next); in affs_write_end_ofs()
794 "next block already set for %d (%d)", in affs_write_end_ofs()
796 AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr); in affs_write_end_ofs()
797 affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next); in affs_write_end_ofs()
800 } else if (be32_to_cpu(AFFS_DATA_HEAD(bh)->size) < tmp) in affs_write_end_ofs()
801 AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp); in affs_write_end_ofs()
813 tmp = (page->index << PAGE_SHIFT) + from; in affs_write_end_ofs()
814 if (tmp > inode->i_size) in affs_write_end_ofs()
815 inode->i_size = AFFS_I(inode)->mmu_private = tmp; in affs_write_end_ofs()
818 if (AFFS_I(inode)->i_protect & FIBF_ARCHIVED) { in affs_write_end_ofs()
819 AFFS_I(inode)->i_protect &= ~FIBF_ARCHIVED; in affs_write_end_ofs()
849 struct super_block *sb = inode->i_sb; in affs_free_prealloc()
851 pr_debug("free_prealloc(ino=%lu)\n", inode->i_ino); in affs_free_prealloc()
853 while (AFFS_I(inode)->i_pa_cnt) { in affs_free_prealloc()
854 AFFS_I(inode)->i_pa_cnt--; in affs_free_prealloc()
855 affs_free_block(sb, ++AFFS_I(inode)->i_lastalloc); in affs_free_prealloc()
859 /* Truncate (or enlarge) a file to the requested size. */
864 struct super_block *sb = inode->i_sb; in affs_truncate()
867 u32 size; in affs_truncate() local
872 inode->i_ino, AFFS_I(inode)->mmu_private, inode->i_size); in affs_truncate()
876 if (inode->i_size) { in affs_truncate()
877 last_blk = ((u32)inode->i_size - 1) / AFFS_SB(sb)->s_data_blksize; in affs_truncate()
878 ext = last_blk / AFFS_SB(sb)->s_hashsize; in affs_truncate()
881 if (inode->i_size > AFFS_I(inode)->mmu_private) { in affs_truncate()
882 struct address_space *mapping = inode->i_mapping; in affs_truncate()
885 loff_t isize = inode->i_size; in affs_truncate()
888 res = mapping->a_ops->write_begin(NULL, mapping, isize, 0, 0, &page, &fsdata); in affs_truncate()
890 res = mapping->a_ops->write_end(NULL, mapping, isize, 0, 0, page, fsdata); in affs_truncate()
892 inode->i_size = AFFS_I(inode)->mmu_private; in affs_truncate()
895 } else if (inode->i_size == AFFS_I(inode)->mmu_private) in affs_truncate()
898 // lock cache in affs_truncate()
902 "unexpected read error for ext block %u (%ld)", in affs_truncate()
906 if (AFFS_I(inode)->i_lc) { in affs_truncate()
907 /* clear linear cache */ in affs_truncate()
908 i = (ext + 1) >> AFFS_I(inode)->i_lc_shift; in affs_truncate()
909 if (AFFS_I(inode)->i_lc_size > i) { in affs_truncate()
910 AFFS_I(inode)->i_lc_size = i; in affs_truncate()
912 AFFS_I(inode)->i_lc[i] = 0; in affs_truncate()
914 /* clear associative cache */ in affs_truncate()
916 if (AFFS_I(inode)->i_ac[i].ext >= ext) in affs_truncate()
917 AFFS_I(inode)->i_ac[i].ext = 0; in affs_truncate()
919 ext_key = be32_to_cpu(AFFS_TAIL(sb, ext_bh)->extension); in affs_truncate()
921 blkcnt = AFFS_I(inode)->i_blkcnt; in affs_truncate()
924 if (inode->i_size) { in affs_truncate()
925 i = last_blk % AFFS_SB(sb)->s_hashsize + 1; in affs_truncate()
928 AFFS_HEAD(ext_bh)->first_data = 0; in affs_truncate()
929 AFFS_HEAD(ext_bh)->block_count = cpu_to_be32(i); in affs_truncate()
930 size = AFFS_SB(sb)->s_hashsize; in affs_truncate()
931 if (size > blkcnt - blk + i) in affs_truncate()
932 size = blkcnt - blk + i; in affs_truncate()
933 for (; i < size; i++, blk++) { in affs_truncate()
937 AFFS_TAIL(sb, ext_bh)->extension = 0; in affs_truncate()
942 if (inode->i_size) { in affs_truncate()
943 AFFS_I(inode)->i_blkcnt = last_blk + 1; in affs_truncate()
944 AFFS_I(inode)->i_extcnt = ext + 1; in affs_truncate()
945 if (affs_test_opt(AFFS_SB(sb)->s_flags, SF_OFS)) { in affs_truncate()
950 "unexpected read error for last block %u (%ld)", in affs_truncate()
954 tmp = be32_to_cpu(AFFS_DATA_HEAD(bh)->next); in affs_truncate()
955 AFFS_DATA_HEAD(bh)->next = 0; in affs_truncate()
956 affs_adjust_checksum(bh, -tmp); in affs_truncate()
960 AFFS_I(inode)->i_blkcnt = 0; in affs_truncate()
961 AFFS_I(inode)->i_extcnt = 1; in affs_truncate()
963 AFFS_I(inode)->mmu_private = inode->i_size; in affs_truncate()
964 // unlock cache in affs_truncate()
968 size = AFFS_SB(sb)->s_hashsize; in affs_truncate()
969 if (size > blkcnt - blk) in affs_truncate()
970 size = blkcnt - blk; in affs_truncate()
971 for (i = 0; i < size; i++, blk++) in affs_truncate()
974 ext_key = be32_to_cpu(AFFS_TAIL(sb, ext_bh)->extension); in affs_truncate()
982 struct inode *inode = filp->f_mapping->host; in affs_file_fsync()
991 err = sync_blockdev(inode->i_sb->s_bdev); in affs_file_fsync()