Lines Matching refs:dev
48 void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr, in yaffs_addr_to_chunk() argument
54 chunk = (u32) (addr >> dev->chunk_shift); in yaffs_addr_to_chunk()
56 if (dev->chunk_div == 1) { in yaffs_addr_to_chunk()
58 offset = (u32) (addr & dev->chunk_mask); in yaffs_addr_to_chunk()
64 chunk /= dev->chunk_div; in yaffs_addr_to_chunk()
66 chunk_base = ((loff_t) chunk) * dev->data_bytes_per_chunk; in yaffs_addr_to_chunk()
124 static int yaffs_init_tmp_buffers(struct yaffs_dev *dev) in yaffs_init_tmp_buffers() argument
129 memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer)); in yaffs_init_tmp_buffers()
132 dev->temp_buffer[i].in_use = 0; in yaffs_init_tmp_buffers()
133 buf = kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); in yaffs_init_tmp_buffers()
134 dev->temp_buffer[i].buffer = buf; in yaffs_init_tmp_buffers()
140 u8 *yaffs_get_temp_buffer(struct yaffs_dev * dev) in yaffs_get_temp_buffer() argument
144 dev->temp_in_use++; in yaffs_get_temp_buffer()
145 if (dev->temp_in_use > dev->max_temp) in yaffs_get_temp_buffer()
146 dev->max_temp = dev->temp_in_use; in yaffs_get_temp_buffer()
149 if (dev->temp_buffer[i].in_use == 0) { in yaffs_get_temp_buffer()
150 dev->temp_buffer[i].in_use = 1; in yaffs_get_temp_buffer()
151 return dev->temp_buffer[i].buffer; in yaffs_get_temp_buffer()
161 dev->unmanaged_buffer_allocs++; in yaffs_get_temp_buffer()
162 return kmalloc(dev->data_bytes_per_chunk, GFP_NOFS); in yaffs_get_temp_buffer()
166 void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer) in yaffs_release_temp_buffer() argument
170 dev->temp_in_use--; in yaffs_release_temp_buffer()
173 if (dev->temp_buffer[i].buffer == buffer) { in yaffs_release_temp_buffer()
174 dev->temp_buffer[i].in_use = 0; in yaffs_release_temp_buffer()
184 dev->unmanaged_buffer_deallocs++; in yaffs_release_temp_buffer()
192 int yaffs_is_managed_tmp_buffer(struct yaffs_dev *dev, const u8 *buffer) in yaffs_is_managed_tmp_buffer() argument
197 if (dev->temp_buffer[i].buffer == buffer) in yaffs_is_managed_tmp_buffer()
201 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_is_managed_tmp_buffer()
202 if (dev->cache[i].data == buffer) in yaffs_is_managed_tmp_buffer()
206 if (buffer == dev->checkpt_buffer) in yaffs_is_managed_tmp_buffer()
219 static void yaffs_handle_chunk_wr_ok(struct yaffs_dev *dev, int nand_chunk, in yaffs_handle_chunk_wr_ok() argument
225 static void yaffs_handle_chunk_update(struct yaffs_dev *dev, int nand_chunk, in yaffs_handle_chunk_update() argument
230 void yaffs_handle_chunk_error(struct yaffs_dev *dev, in yaffs_handle_chunk_error() argument
235 dev->has_pending_prioritised_gc = 1; in yaffs_handle_chunk_error()
247 static void yaffs_handle_chunk_wr_error(struct yaffs_dev *dev, int nand_chunk, in yaffs_handle_chunk_wr_error() argument
250 int flash_block = nand_chunk / dev->param.chunks_per_block; in yaffs_handle_chunk_wr_error()
251 struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); in yaffs_handle_chunk_wr_error()
253 yaffs_handle_chunk_error(dev, bi); in yaffs_handle_chunk_wr_error()
264 yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); in yaffs_handle_chunk_wr_error()
265 yaffs_skip_rest_of_block(dev); in yaffs_handle_chunk_wr_error()
288 struct yaffs_obj *yaffs_root(struct yaffs_dev *dev) in yaffs_root() argument
290 return dev->root_dir; in yaffs_root()
293 struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev) in yaffs_lost_n_found() argument
295 return dev->lost_n_found; in yaffs_lost_n_found()
313 static int yaffs_check_chunk_erased(struct yaffs_dev *dev, int nand_chunk) in yaffs_check_chunk_erased() argument
316 u8 *data = yaffs_get_temp_buffer(dev); in yaffs_check_chunk_erased()
319 yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags); in yaffs_check_chunk_erased()
324 if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || in yaffs_check_chunk_erased()
331 yaffs_release_temp_buffer(dev, data); in yaffs_check_chunk_erased()
337 static int yaffs_verify_chunk_written(struct yaffs_dev *dev, in yaffs_verify_chunk_written() argument
344 u8 *buffer = yaffs_get_temp_buffer(dev); in yaffs_verify_chunk_written()
346 yaffs_rd_chunk_tags_nand(dev, nand_chunk, buffer, &temp_tags); in yaffs_verify_chunk_written()
347 if (memcmp(buffer, data, dev->data_bytes_per_chunk) || in yaffs_verify_chunk_written()
353 yaffs_release_temp_buffer(dev, buffer); in yaffs_verify_chunk_written()
359 int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks) in yaffs_check_alloc_available() argument
362 int reserved_blocks = dev->param.n_reserved_blocks; in yaffs_check_alloc_available()
365 checkpt_blocks = yaffs_calc_checkpt_blocks_required(dev); in yaffs_check_alloc_available()
368 (reserved_blocks + checkpt_blocks) * dev->param.chunks_per_block; in yaffs_check_alloc_available()
370 return (dev->n_free_chunks > (reserved_chunks + n_chunks)); in yaffs_check_alloc_available()
373 static int yaffs_find_alloc_block(struct yaffs_dev *dev) in yaffs_find_alloc_block() argument
378 if (dev->n_erased_blocks < 1) { in yaffs_find_alloc_block()
390 for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { in yaffs_find_alloc_block()
391 dev->alloc_block_finder++; in yaffs_find_alloc_block()
392 if (dev->alloc_block_finder < dev->internal_start_block in yaffs_find_alloc_block()
393 || dev->alloc_block_finder > dev->internal_end_block) { in yaffs_find_alloc_block()
394 dev->alloc_block_finder = dev->internal_start_block; in yaffs_find_alloc_block()
397 bi = yaffs_get_block_info(dev, dev->alloc_block_finder); in yaffs_find_alloc_block()
401 dev->seq_number++; in yaffs_find_alloc_block()
402 bi->seq_number = dev->seq_number; in yaffs_find_alloc_block()
403 dev->n_erased_blocks--; in yaffs_find_alloc_block()
406 dev->alloc_block_finder, dev->seq_number, in yaffs_find_alloc_block()
407 dev->n_erased_blocks); in yaffs_find_alloc_block()
408 return dev->alloc_block_finder; in yaffs_find_alloc_block()
414 dev->n_erased_blocks); in yaffs_find_alloc_block()
419 static int yaffs_alloc_chunk(struct yaffs_dev *dev, int use_reserver, in yaffs_alloc_chunk() argument
425 if (dev->alloc_block < 0) { in yaffs_alloc_chunk()
427 dev->alloc_block = yaffs_find_alloc_block(dev); in yaffs_alloc_chunk()
428 dev->alloc_page = 0; in yaffs_alloc_chunk()
431 if (!use_reserver && !yaffs_check_alloc_available(dev, 1)) { in yaffs_alloc_chunk()
436 if (dev->n_erased_blocks < dev->param.n_reserved_blocks in yaffs_alloc_chunk()
437 && dev->alloc_page == 0) in yaffs_alloc_chunk()
441 if (dev->alloc_block >= 0) { in yaffs_alloc_chunk()
442 bi = yaffs_get_block_info(dev, dev->alloc_block); in yaffs_alloc_chunk()
444 ret_val = (dev->alloc_block * dev->param.chunks_per_block) + in yaffs_alloc_chunk()
445 dev->alloc_page; in yaffs_alloc_chunk()
447 yaffs_set_chunk_bit(dev, dev->alloc_block, dev->alloc_page); in yaffs_alloc_chunk()
449 dev->alloc_page++; in yaffs_alloc_chunk()
451 dev->n_free_chunks--; in yaffs_alloc_chunk()
454 if (dev->alloc_page >= dev->param.chunks_per_block) { in yaffs_alloc_chunk()
456 dev->alloc_block = -1; in yaffs_alloc_chunk()
471 static int yaffs_get_erased_chunks(struct yaffs_dev *dev) in yaffs_get_erased_chunks() argument
475 n = dev->n_erased_blocks * dev->param.chunks_per_block; in yaffs_get_erased_chunks()
477 if (dev->alloc_block > 0) in yaffs_get_erased_chunks()
478 n += (dev->param.chunks_per_block - dev->alloc_page); in yaffs_get_erased_chunks()
488 void yaffs_skip_rest_of_block(struct yaffs_dev *dev) in yaffs_skip_rest_of_block() argument
492 if (dev->alloc_block > 0) { in yaffs_skip_rest_of_block()
493 bi = yaffs_get_block_info(dev, dev->alloc_block); in yaffs_skip_rest_of_block()
496 dev->alloc_block = -1; in yaffs_skip_rest_of_block()
501 static int yaffs_write_new_chunk(struct yaffs_dev *dev, in yaffs_write_new_chunk() argument
509 yaffs2_checkpt_invalidate(dev); in yaffs_write_new_chunk()
515 chunk = yaffs_alloc_chunk(dev, use_reserver, &bi); in yaffs_write_new_chunk()
548 if (dev->param.always_check_erased) in yaffs_write_new_chunk()
552 erased_ok = yaffs_check_chunk_erased(dev, chunk); in yaffs_write_new_chunk()
561 yaffs_chunk_del(dev, chunk, 1, __LINE__); in yaffs_write_new_chunk()
562 yaffs_skip_rest_of_block(dev); in yaffs_write_new_chunk()
567 write_ok = yaffs_wr_chunk_tags_nand(dev, chunk, data, tags); in yaffs_write_new_chunk()
571 yaffs_verify_chunk_written(dev, chunk, data, tags); in yaffs_write_new_chunk()
576 yaffs_handle_chunk_wr_error(dev, chunk, erased_ok); in yaffs_write_new_chunk()
583 yaffs_handle_chunk_wr_ok(dev, chunk, data, tags); in yaffs_write_new_chunk()
595 dev->n_retried_writes += (attempts - 1); in yaffs_write_new_chunk()
605 static void yaffs_retire_block(struct yaffs_dev *dev, int flash_block) in yaffs_retire_block() argument
607 struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); in yaffs_retire_block()
609 yaffs2_checkpt_invalidate(dev); in yaffs_retire_block()
611 yaffs2_clear_oldest_dirty_seq(dev, bi); in yaffs_retire_block()
613 if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) { in yaffs_retire_block()
614 if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) { in yaffs_retire_block()
621 flash_block * dev->param.chunks_per_block; in yaffs_retire_block()
623 u8 *buffer = yaffs_get_temp_buffer(dev); in yaffs_retire_block()
625 memset(buffer, 0xff, dev->data_bytes_per_chunk); in yaffs_retire_block()
628 if (dev->param.write_chunk_tags_fn(dev, chunk_id - in yaffs_retire_block()
629 dev->chunk_offset, in yaffs_retire_block()
636 yaffs_release_temp_buffer(dev, buffer); in yaffs_retire_block()
644 dev->n_retired_blocks++; in yaffs_retire_block()
693 loff_t yaffs_max_file_size(struct yaffs_dev *dev) in yaffs_max_file_size() argument
695 return ((loff_t) YAFFS_MAX_CHUNK_ID) * dev->data_bytes_per_chunk; in yaffs_max_file_size()
705 struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev) in yaffs_get_tnode() argument
707 struct yaffs_tnode *tn = yaffs_alloc_raw_tnode(dev); in yaffs_get_tnode()
710 memset(tn, 0, dev->tnode_size); in yaffs_get_tnode()
711 dev->n_tnodes++; in yaffs_get_tnode()
714 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_get_tnode()
720 static void yaffs_free_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn) in yaffs_free_tnode() argument
722 yaffs_free_raw_tnode(dev, tn); in yaffs_free_tnode()
723 dev->n_tnodes--; in yaffs_free_tnode()
724 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_free_tnode()
727 static void yaffs_deinit_tnodes_and_objs(struct yaffs_dev *dev) in yaffs_deinit_tnodes_and_objs() argument
729 yaffs_deinit_raw_tnodes_and_objs(dev); in yaffs_deinit_tnodes_and_objs()
730 dev->n_obj = 0; in yaffs_deinit_tnodes_and_objs()
731 dev->n_tnodes = 0; in yaffs_deinit_tnodes_and_objs()
734 void yaffs_load_tnode_0(struct yaffs_dev *dev, struct yaffs_tnode *tn, in yaffs_load_tnode_0() argument
744 val >>= dev->chunk_grp_bits; in yaffs_load_tnode_0()
746 bit_in_map = pos * dev->tnode_width; in yaffs_load_tnode_0()
750 mask = dev->tnode_mask << bit_in_word; in yaffs_load_tnode_0()
755 if (dev->tnode_width > (32 - bit_in_word)) { in yaffs_load_tnode_0()
759 dev->tnode_mask >> bit_in_word; in yaffs_load_tnode_0()
765 u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, in yaffs_get_group_base() argument
776 bit_in_map = pos * dev->tnode_width; in yaffs_get_group_base()
782 if (dev->tnode_width > (32 - bit_in_word)) { in yaffs_get_group_base()
788 val &= dev->tnode_mask; in yaffs_get_group_base()
789 val <<= dev->chunk_grp_bits; in yaffs_get_group_base()
802 struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, in yaffs_find_tnode_0() argument
855 struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, in yaffs_add_find_tnode_0() argument
887 tn = yaffs_get_tnode(dev); in yaffs_add_find_tnode_0()
915 tn->internal[x] = yaffs_get_tnode(dev); in yaffs_add_find_tnode_0()
923 yaffs_free_tnode(dev, in yaffs_add_find_tnode_0()
929 tn->internal[x] = yaffs_get_tnode(dev); in yaffs_add_find_tnode_0()
942 (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8); in yaffs_add_find_tnode_0()
943 yaffs_free_tnode(dev, passed_tn); in yaffs_add_find_tnode_0()
959 static int yaffs_find_chunk_in_group(struct yaffs_dev *dev, int the_chunk, in yaffs_find_chunk_in_group() argument
965 for (j = 0; the_chunk && j < dev->chunk_grp_size; j++) { in yaffs_find_chunk_in_group()
967 (dev, the_chunk / dev->param.chunks_per_block, in yaffs_find_chunk_in_group()
968 the_chunk % dev->param.chunks_per_block)) { in yaffs_find_chunk_in_group()
970 if (dev->chunk_grp_size == 1) in yaffs_find_chunk_in_group()
973 yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL, in yaffs_find_chunk_in_group()
995 struct yaffs_dev *dev = in->my_dev; in yaffs_find_chunk_in_file() local
1002 tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); in yaffs_find_chunk_in_file()
1007 the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); in yaffs_find_chunk_in_file()
1009 ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, in yaffs_find_chunk_in_file()
1021 struct yaffs_dev *dev = in->my_dev; in yaffs_find_del_file_chunk() local
1029 tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); in yaffs_find_del_file_chunk()
1034 the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); in yaffs_find_del_file_chunk()
1036 ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, in yaffs_find_del_file_chunk()
1041 yaffs_load_tnode_0(dev, tn, inode_chunk, 0); in yaffs_find_del_file_chunk()
1057 struct yaffs_dev *dev = in->my_dev; in yaffs_put_chunk_in_file() local
1075 yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); in yaffs_put_chunk_in_file()
1079 tn = yaffs_add_find_tnode_0(dev, in yaffs_put_chunk_in_file()
1089 existing_cunk = yaffs_get_group_base(dev, tn, inode_chunk); in yaffs_put_chunk_in_file()
1120 yaffs_rd_chunk_tags_nand(dev, in yaffs_put_chunk_in_file()
1156 yaffs_chunk_del(dev, existing_cunk, 1, in yaffs_put_chunk_in_file()
1164 yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); in yaffs_put_chunk_in_file()
1174 yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk); in yaffs_put_chunk_in_file()
1179 static void yaffs_soft_del_chunk(struct yaffs_dev *dev, int chunk) in yaffs_soft_del_chunk() argument
1186 block_no = chunk / dev->param.chunks_per_block; in yaffs_soft_del_chunk()
1187 the_block = yaffs_get_block_info(dev, block_no); in yaffs_soft_del_chunk()
1190 dev->n_free_chunks++; in yaffs_soft_del_chunk()
1191 yaffs2_update_oldest_dirty_seq(dev, block_no, the_block); in yaffs_soft_del_chunk()
1209 struct yaffs_dev *dev = in->my_dev; in yaffs_soft_del_worker() local
1227 yaffs_free_tnode(dev, in yaffs_soft_del_worker()
1240 the_chunk = yaffs_get_group_base(dev, tn, i); in yaffs_soft_del_worker()
1242 yaffs_soft_del_chunk(dev, the_chunk); in yaffs_soft_del_worker()
1243 yaffs_load_tnode_0(dev, tn, i, 0); in yaffs_soft_del_worker()
1251 struct yaffs_dev *dev = obj->my_dev; in yaffs_remove_obj_from_dir() local
1259 if (dev && dev->param.remove_obj_fn) in yaffs_remove_obj_from_dir()
1260 dev->param.remove_obj_fn(obj); in yaffs_remove_obj_from_dir()
1370 struct yaffs_dev *dev = obj->my_dev; in yaffs_obj_cache_dirty() local
1376 cache = &dev->cache[i]; in yaffs_obj_cache_dirty()
1386 struct yaffs_dev *dev = obj->my_dev; in yaffs_flush_file_cache() local
1400 if (dev->cache[i].object == obj && in yaffs_flush_file_cache()
1401 dev->cache[i].dirty) { in yaffs_flush_file_cache()
1403 dev->cache[i].chunk_id < lowest) { in yaffs_flush_file_cache()
1404 cache = &dev->cache[i]; in yaffs_flush_file_cache()
1433 void yaffs_flush_whole_cache(struct yaffs_dev *dev) in yaffs_flush_whole_cache() argument
1436 int n_caches = dev->param.n_caches; in yaffs_flush_whole_cache()
1445 if (dev->cache[i].object && dev->cache[i].dirty) in yaffs_flush_whole_cache()
1446 obj = dev->cache[i].object; in yaffs_flush_whole_cache()
1459 static struct yaffs_cache *yaffs_grab_chunk_worker(struct yaffs_dev *dev) in yaffs_grab_chunk_worker() argument
1463 if (dev->param.n_caches > 0) { in yaffs_grab_chunk_worker()
1464 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_grab_chunk_worker()
1465 if (!dev->cache[i].object) in yaffs_grab_chunk_worker()
1466 return &dev->cache[i]; in yaffs_grab_chunk_worker()
1472 static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev) in yaffs_grab_chunk_cache() argument
1479 if (dev->param.n_caches < 1) in yaffs_grab_chunk_cache()
1484 cache = yaffs_grab_chunk_worker(dev); in yaffs_grab_chunk_cache()
1495 the_obj = dev->cache[0].object; in yaffs_grab_chunk_cache()
1499 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_grab_chunk_cache()
1500 if (dev->cache[i].object && in yaffs_grab_chunk_cache()
1501 !dev->cache[i].locked && in yaffs_grab_chunk_cache()
1502 (dev->cache[i].last_use < usage || in yaffs_grab_chunk_cache()
1504 usage = dev->cache[i].last_use; in yaffs_grab_chunk_cache()
1505 the_obj = dev->cache[i].object; in yaffs_grab_chunk_cache()
1506 cache = &dev->cache[i]; in yaffs_grab_chunk_cache()
1513 cache = yaffs_grab_chunk_worker(dev); in yaffs_grab_chunk_cache()
1523 struct yaffs_dev *dev = obj->my_dev; in yaffs_find_chunk_cache() local
1526 if (dev->param.n_caches < 1) in yaffs_find_chunk_cache()
1529 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_find_chunk_cache()
1530 if (dev->cache[i].object == obj && in yaffs_find_chunk_cache()
1531 dev->cache[i].chunk_id == chunk_id) { in yaffs_find_chunk_cache()
1532 dev->cache_hits++; in yaffs_find_chunk_cache()
1534 return &dev->cache[i]; in yaffs_find_chunk_cache()
1541 static void yaffs_use_cache(struct yaffs_dev *dev, struct yaffs_cache *cache, in yaffs_use_cache() argument
1546 if (dev->param.n_caches < 1) in yaffs_use_cache()
1549 if (dev->cache_last_use < 0 || in yaffs_use_cache()
1550 dev->cache_last_use > 100000000) { in yaffs_use_cache()
1552 for (i = 1; i < dev->param.n_caches; i++) in yaffs_use_cache()
1553 dev->cache[i].last_use = 0; in yaffs_use_cache()
1555 dev->cache_last_use = 0; in yaffs_use_cache()
1557 dev->cache_last_use++; in yaffs_use_cache()
1558 cache->last_use = dev->cache_last_use; in yaffs_use_cache()
1586 struct yaffs_dev *dev = in->my_dev; in yaffs_invalidate_whole_cache() local
1588 if (dev->param.n_caches > 0) { in yaffs_invalidate_whole_cache()
1590 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_invalidate_whole_cache()
1591 if (dev->cache[i].object == in) in yaffs_invalidate_whole_cache()
1592 dev->cache[i].object = NULL; in yaffs_invalidate_whole_cache()
1600 struct yaffs_dev *dev = obj->my_dev; in yaffs_unhash_obj() local
1606 dev->obj_bucket[bucket].count--; in yaffs_unhash_obj()
1613 struct yaffs_dev *dev; in yaffs_free_obj() local
1619 dev = obj->my_dev; in yaffs_free_obj()
1637 yaffs_free_raw_obj(dev, obj); in yaffs_free_obj()
1638 dev->n_obj--; in yaffs_free_obj()
1639 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_free_obj()
1708 static struct yaffs_tnode *yaffs_prune_worker(struct yaffs_dev *dev, in yaffs_prune_worker() argument
1724 yaffs_prune_worker(dev, in yaffs_prune_worker()
1734 int tnode_size_u32 = dev->tnode_size / sizeof(u32); in yaffs_prune_worker()
1745 yaffs_free_tnode(dev, tn); in yaffs_prune_worker()
1751 static int yaffs_prune_tree(struct yaffs_dev *dev, in yaffs_prune_tree() argument
1763 yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0); in yaffs_prune_tree()
1784 yaffs_free_tnode(dev, tn); in yaffs_prune_tree()
1796 static struct yaffs_obj *yaffs_alloc_empty_obj(struct yaffs_dev *dev) in yaffs_alloc_empty_obj() argument
1798 struct yaffs_obj *obj = yaffs_alloc_raw_obj(dev); in yaffs_alloc_empty_obj()
1803 dev->n_obj++; in yaffs_alloc_empty_obj()
1810 obj->my_dev = dev; in yaffs_alloc_empty_obj()
1818 if (dev->root_dir) { in yaffs_alloc_empty_obj()
1819 obj->parent = dev->root_dir; in yaffs_alloc_empty_obj()
1821 &dev->root_dir->variant.dir_variant.children); in yaffs_alloc_empty_obj()
1828 if (dev->lost_n_found) in yaffs_alloc_empty_obj()
1829 yaffs_add_obj_to_dir(dev->lost_n_found, obj); in yaffs_alloc_empty_obj()
1833 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_alloc_empty_obj()
1838 static int yaffs_find_nice_bucket(struct yaffs_dev *dev) in yaffs_find_nice_bucket() argument
1849 dev->bucket_finder++; in yaffs_find_nice_bucket()
1850 dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS; in yaffs_find_nice_bucket()
1851 if (dev->obj_bucket[dev->bucket_finder].count < lowest) { in yaffs_find_nice_bucket()
1852 lowest = dev->obj_bucket[dev->bucket_finder].count; in yaffs_find_nice_bucket()
1853 l = dev->bucket_finder; in yaffs_find_nice_bucket()
1860 static int yaffs_new_obj_id(struct yaffs_dev *dev) in yaffs_new_obj_id() argument
1862 int bucket = yaffs_find_nice_bucket(dev); in yaffs_new_obj_id()
1874 list_for_each(i, &dev->obj_bucket[bucket].list) { in yaffs_new_obj_id()
1889 struct yaffs_dev *dev = in->my_dev; in yaffs_hash_obj() local
1891 list_add(&in->hash_link, &dev->obj_bucket[bucket].list); in yaffs_hash_obj()
1892 dev->obj_bucket[bucket].count++; in yaffs_hash_obj()
1895 struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number) in yaffs_find_by_number() argument
1901 list_for_each(i, &dev->obj_bucket[bucket].list) { in yaffs_find_by_number()
1915 struct yaffs_obj *yaffs_new_obj(struct yaffs_dev *dev, int number, in yaffs_new_obj() argument
1922 number = yaffs_new_obj_id(dev); in yaffs_new_obj()
1925 tn = yaffs_get_tnode(dev); in yaffs_new_obj()
1930 the_obj = yaffs_alloc_empty_obj(dev); in yaffs_new_obj()
1933 yaffs_free_tnode(dev, tn); in yaffs_new_obj()
1950 yaffs_max_file_size(dev); in yaffs_new_obj()
1970 static struct yaffs_obj *yaffs_create_fake_dir(struct yaffs_dev *dev, in yaffs_create_fake_dir() argument
1975 yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); in yaffs_create_fake_dir()
1986 obj->my_dev = dev; in yaffs_create_fake_dir()
1993 static void yaffs_init_tnodes_and_objs(struct yaffs_dev *dev) in yaffs_init_tnodes_and_objs() argument
1997 dev->n_obj = 0; in yaffs_init_tnodes_and_objs()
1998 dev->n_tnodes = 0; in yaffs_init_tnodes_and_objs()
1999 yaffs_init_raw_tnodes_and_objs(dev); in yaffs_init_tnodes_and_objs()
2002 INIT_LIST_HEAD(&dev->obj_bucket[i].list); in yaffs_init_tnodes_and_objs()
2003 dev->obj_bucket[i].count = 0; in yaffs_init_tnodes_and_objs()
2007 struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, in yaffs_find_or_create_by_number() argument
2014 the_obj = yaffs_find_by_number(dev, number); in yaffs_find_or_create_by_number()
2017 the_obj = yaffs_new_obj(dev, number, type); in yaffs_find_or_create_by_number()
2058 struct yaffs_dev *dev; in yaffs_update_parent() local
2062 dev = obj->my_dev; in yaffs_update_parent()
2065 if (dev->param.defered_dir_update) { in yaffs_update_parent()
2069 list_add(link, &dev->dirty_dirs); in yaffs_update_parent()
2080 void yaffs_update_dirty_dirs(struct yaffs_dev *dev) in yaffs_update_dirty_dirs() argument
2089 while (!list_empty(&dev->dirty_dirs)) { in yaffs_update_dirty_dirs()
2090 link = dev->dirty_dirs.next; in yaffs_update_dirty_dirs()
2123 struct yaffs_dev *dev = parent->my_dev; in yaffs_create_obj() local
2136 in = yaffs_new_obj(dev, -1, type); in yaffs_create_obj()
2240 static void yaffs_deinit_blocks(struct yaffs_dev *dev) in yaffs_deinit_blocks() argument
2242 if (dev->block_info_alt && dev->block_info) in yaffs_deinit_blocks()
2243 vfree(dev->block_info); in yaffs_deinit_blocks()
2245 kfree(dev->block_info); in yaffs_deinit_blocks()
2247 dev->block_info_alt = 0; in yaffs_deinit_blocks()
2249 dev->block_info = NULL; in yaffs_deinit_blocks()
2251 if (dev->chunk_bits_alt && dev->chunk_bits) in yaffs_deinit_blocks()
2252 vfree(dev->chunk_bits); in yaffs_deinit_blocks()
2254 kfree(dev->chunk_bits); in yaffs_deinit_blocks()
2255 dev->chunk_bits_alt = 0; in yaffs_deinit_blocks()
2256 dev->chunk_bits = NULL; in yaffs_deinit_blocks()
2259 static int yaffs_init_blocks(struct yaffs_dev *dev) in yaffs_init_blocks() argument
2261 int n_blocks = dev->internal_end_block - dev->internal_start_block + 1; in yaffs_init_blocks()
2263 dev->block_info = NULL; in yaffs_init_blocks()
2264 dev->chunk_bits = NULL; in yaffs_init_blocks()
2265 dev->alloc_block = -1; /* force it to get a new one */ in yaffs_init_blocks()
2268 dev->block_info = in yaffs_init_blocks()
2270 if (!dev->block_info) { in yaffs_init_blocks()
2271 dev->block_info = in yaffs_init_blocks()
2273 dev->block_info_alt = 1; in yaffs_init_blocks()
2275 dev->block_info_alt = 0; in yaffs_init_blocks()
2278 if (!dev->block_info) in yaffs_init_blocks()
2282 dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; in yaffs_init_blocks()
2283 dev->chunk_bits = in yaffs_init_blocks()
2284 kmalloc(dev->chunk_bit_stride * n_blocks, GFP_NOFS); in yaffs_init_blocks()
2285 if (!dev->chunk_bits) { in yaffs_init_blocks()
2286 dev->chunk_bits = in yaffs_init_blocks()
2287 vmalloc(dev->chunk_bit_stride * n_blocks); in yaffs_init_blocks()
2288 dev->chunk_bits_alt = 1; in yaffs_init_blocks()
2290 dev->chunk_bits_alt = 0; in yaffs_init_blocks()
2292 if (!dev->chunk_bits) in yaffs_init_blocks()
2296 memset(dev->block_info, 0, n_blocks * sizeof(struct yaffs_block_info)); in yaffs_init_blocks()
2297 memset(dev->chunk_bits, 0, dev->chunk_bit_stride * n_blocks); in yaffs_init_blocks()
2301 yaffs_deinit_blocks(dev); in yaffs_init_blocks()
2306 void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no) in yaffs_block_became_dirty() argument
2308 struct yaffs_block_info *bi = yaffs_get_block_info(dev, block_no); in yaffs_block_became_dirty()
2321 yaffs2_clear_oldest_dirty_seq(dev, bi); in yaffs_block_became_dirty()
2326 if (block_no == dev->gc_block) in yaffs_block_became_dirty()
2327 dev->gc_block = 0; in yaffs_block_became_dirty()
2331 if (block_no == dev->gc_dirtiest) { in yaffs_block_became_dirty()
2332 dev->gc_dirtiest = 0; in yaffs_block_became_dirty()
2333 dev->gc_pages_in_use = 0; in yaffs_block_became_dirty()
2337 yaffs2_checkpt_invalidate(dev); in yaffs_block_became_dirty()
2338 erased_ok = yaffs_erase_block(dev, block_no); in yaffs_block_became_dirty()
2340 dev->n_erase_failures++; in yaffs_block_became_dirty()
2349 !yaffs_skip_verification(dev))) { in yaffs_block_became_dirty()
2350 for (i = 0; i < dev->param.chunks_per_block; i++) { in yaffs_block_became_dirty()
2351 if (!yaffs_check_chunk_erased(dev, in yaffs_block_became_dirty()
2352 block_no * dev->param.chunks_per_block + i)) { in yaffs_block_became_dirty()
2362 dev->n_free_chunks -= dev->param.chunks_per_block; in yaffs_block_became_dirty()
2363 yaffs_retire_block(dev, block_no); in yaffs_block_became_dirty()
2372 dev->n_erased_blocks++; in yaffs_block_became_dirty()
2380 yaffs_clear_chunk_bits(dev, block_no); in yaffs_block_became_dirty()
2385 static inline int yaffs_gc_process_chunk(struct yaffs_dev *dev, in yaffs_gc_process_chunk() argument
2397 yaffs_rd_chunk_tags_nand(dev, old_chunk, in yaffs_gc_process_chunk()
2399 object = yaffs_find_by_number(dev, tags.obj_id); in yaffs_gc_process_chunk()
2403 dev->gc_chunk, tags.obj_id, in yaffs_gc_process_chunk()
2406 if (object && !yaffs_skip_verification(dev)) { in yaffs_gc_process_chunk()
2453 dev->n_free_chunks--; in yaffs_gc_process_chunk()
2459 dev->gc_cleanup_list[dev->n_clean_ups] = tags.obj_id; in yaffs_gc_process_chunk()
2460 dev->n_clean_ups++; in yaffs_gc_process_chunk()
2472 dev->n_gc_copies++; in yaffs_gc_process_chunk()
2501 yaffs_write_new_chunk(dev, (u8 *) oh, &tags, 1); in yaffs_gc_process_chunk()
2504 yaffs_write_new_chunk(dev, buffer, &tags, 1); in yaffs_gc_process_chunk()
2525 yaffs_chunk_del(dev, old_chunk, mark_flash, __LINE__); in yaffs_gc_process_chunk()
2529 static int yaffs_gc_block(struct yaffs_dev *dev, int block, int whole_block) in yaffs_gc_block() argument
2536 int chunks_before = yaffs_get_erased_chunks(dev); in yaffs_gc_block()
2538 struct yaffs_block_info *bi = yaffs_get_block_info(dev, block); in yaffs_gc_block()
2554 dev->gc_disable = 1; in yaffs_gc_block()
2556 yaffs_summary_gc(dev, block); in yaffs_gc_block()
2558 if (is_checkpt_block || !yaffs_still_some_chunks(dev, block)) { in yaffs_gc_block()
2562 yaffs_block_became_dirty(dev, block); in yaffs_gc_block()
2565 u8 *buffer = yaffs_get_temp_buffer(dev); in yaffs_gc_block()
2567 yaffs_verify_blk(dev, bi, block); in yaffs_gc_block()
2569 max_copies = (whole_block) ? dev->param.chunks_per_block : 5; in yaffs_gc_block()
2570 old_chunk = block * dev->param.chunks_per_block + dev->gc_chunk; in yaffs_gc_block()
2574 dev->gc_chunk < dev->param.chunks_per_block && in yaffs_gc_block()
2577 dev->gc_chunk++, old_chunk++) { in yaffs_gc_block()
2578 if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) { in yaffs_gc_block()
2581 ret_val = yaffs_gc_process_chunk(dev, bi, in yaffs_gc_block()
2585 yaffs_release_temp_buffer(dev, buffer); in yaffs_gc_block()
2588 yaffs_verify_collected_blk(dev, bi, block); in yaffs_gc_block()
2599 for (i = 0; i < dev->n_clean_ups; i++) { in yaffs_gc_block()
2602 yaffs_find_by_number(dev, dev->gc_cleanup_list[i]); in yaffs_gc_block()
2604 yaffs_free_tnode(dev, in yaffs_gc_block()
2615 chunks_after = yaffs_get_erased_chunks(dev); in yaffs_gc_block()
2620 dev->gc_block = 0; in yaffs_gc_block()
2621 dev->gc_chunk = 0; in yaffs_gc_block()
2622 dev->n_clean_ups = 0; in yaffs_gc_block()
2625 dev->gc_disable = 0; in yaffs_gc_block()
2635 static unsigned yaffs_find_gc_block(struct yaffs_dev *dev, in yaffs_find_gc_block() argument
2647 if (dev->has_pending_prioritised_gc && !aggressive) { in yaffs_find_gc_block()
2648 dev->gc_dirtiest = 0; in yaffs_find_gc_block()
2649 bi = dev->block_info; in yaffs_find_gc_block()
2650 for (i = dev->internal_start_block; in yaffs_find_gc_block()
2651 i <= dev->internal_end_block && !selected; i++) { in yaffs_find_gc_block()
2656 yaffs_block_ok_for_gc(dev, bi)) { in yaffs_find_gc_block()
2671 !selected && dev->oldest_dirty_block > 0) in yaffs_find_gc_block()
2672 selected = dev->oldest_dirty_block; in yaffs_find_gc_block()
2675 dev->has_pending_prioritised_gc = 0; in yaffs_find_gc_block()
2687 dev->internal_end_block - dev->internal_start_block + 1; in yaffs_find_gc_block()
2689 threshold = dev->param.chunks_per_block; in yaffs_find_gc_block()
2695 max_threshold = dev->param.chunks_per_block / 2; in yaffs_find_gc_block()
2697 max_threshold = dev->param.chunks_per_block / 8; in yaffs_find_gc_block()
2702 threshold = background ? (dev->gc_not_done + 2) * 2 : 0; in yaffs_find_gc_block()
2715 (dev->gc_dirtiest < 1 || in yaffs_find_gc_block()
2716 dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH); in yaffs_find_gc_block()
2718 dev->gc_block_finder++; in yaffs_find_gc_block()
2719 if (dev->gc_block_finder < dev->internal_start_block || in yaffs_find_gc_block()
2720 dev->gc_block_finder > dev->internal_end_block) in yaffs_find_gc_block()
2721 dev->gc_block_finder = in yaffs_find_gc_block()
2722 dev->internal_start_block; in yaffs_find_gc_block()
2724 bi = yaffs_get_block_info(dev, dev->gc_block_finder); in yaffs_find_gc_block()
2729 pages_used < dev->param.chunks_per_block && in yaffs_find_gc_block()
2730 (dev->gc_dirtiest < 1 || in yaffs_find_gc_block()
2731 pages_used < dev->gc_pages_in_use) && in yaffs_find_gc_block()
2732 yaffs_block_ok_for_gc(dev, bi)) { in yaffs_find_gc_block()
2733 dev->gc_dirtiest = dev->gc_block_finder; in yaffs_find_gc_block()
2734 dev->gc_pages_in_use = pages_used; in yaffs_find_gc_block()
2738 if (dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold) in yaffs_find_gc_block()
2739 selected = dev->gc_dirtiest; in yaffs_find_gc_block()
2747 if (!selected && dev->param.is_yaffs2 && in yaffs_find_gc_block()
2748 dev->gc_not_done >= (background ? 10 : 20)) { in yaffs_find_gc_block()
2749 yaffs2_find_oldest_dirty_seq(dev); in yaffs_find_gc_block()
2750 if (dev->oldest_dirty_block > 0) { in yaffs_find_gc_block()
2751 selected = dev->oldest_dirty_block; in yaffs_find_gc_block()
2752 dev->gc_dirtiest = selected; in yaffs_find_gc_block()
2753 dev->oldest_dirty_gc_count++; in yaffs_find_gc_block()
2754 bi = yaffs_get_block_info(dev, selected); in yaffs_find_gc_block()
2755 dev->gc_pages_in_use = in yaffs_find_gc_block()
2758 dev->gc_not_done = 0; in yaffs_find_gc_block()
2766 dev->param.chunks_per_block - dev->gc_pages_in_use, in yaffs_find_gc_block()
2769 dev->n_gc_blocks++; in yaffs_find_gc_block()
2771 dev->bg_gcs++; in yaffs_find_gc_block()
2773 dev->gc_dirtiest = 0; in yaffs_find_gc_block()
2774 dev->gc_pages_in_use = 0; in yaffs_find_gc_block()
2775 dev->gc_not_done = 0; in yaffs_find_gc_block()
2776 if (dev->refresh_skip > 0) in yaffs_find_gc_block()
2777 dev->refresh_skip--; in yaffs_find_gc_block()
2779 dev->gc_not_done++; in yaffs_find_gc_block()
2782 dev->gc_block_finder, dev->gc_not_done, threshold, in yaffs_find_gc_block()
2783 dev->gc_dirtiest, dev->gc_pages_in_use, in yaffs_find_gc_block()
2784 dev->oldest_dirty_block, background ? " bg" : ""); in yaffs_find_gc_block()
2799 static int yaffs_check_gc(struct yaffs_dev *dev, int background) in yaffs_check_gc() argument
2808 if (dev->param.gc_control && (dev->param.gc_control(dev) & 1) == 0) in yaffs_check_gc()
2811 if (dev->gc_disable) in yaffs_check_gc()
2822 checkpt_block_adjust = yaffs_calc_checkpt_blocks_required(dev); in yaffs_check_gc()
2825 dev->param.n_reserved_blocks + checkpt_block_adjust + 1; in yaffs_check_gc()
2827 dev->n_erased_blocks * dev->param.chunks_per_block; in yaffs_check_gc()
2830 if (dev->n_erased_blocks < min_erased) in yaffs_check_gc()
2834 && erased_chunks > (dev->n_free_chunks / 4)) in yaffs_check_gc()
2837 if (dev->gc_skip > 20) in yaffs_check_gc()
2838 dev->gc_skip = 20; in yaffs_check_gc()
2839 if (erased_chunks < dev->n_free_chunks / 2 || in yaffs_check_gc()
2840 dev->gc_skip < 1 || background) in yaffs_check_gc()
2843 dev->gc_skip--; in yaffs_check_gc()
2848 dev->gc_skip = 5; in yaffs_check_gc()
2853 if (dev->gc_block < 1 && !aggressive) { in yaffs_check_gc()
2854 dev->gc_block = yaffs2_find_refresh_block(dev); in yaffs_check_gc()
2855 dev->gc_chunk = 0; in yaffs_check_gc()
2856 dev->n_clean_ups = 0; in yaffs_check_gc()
2858 if (dev->gc_block < 1) { in yaffs_check_gc()
2859 dev->gc_block = in yaffs_check_gc()
2860 yaffs_find_gc_block(dev, aggressive, background); in yaffs_check_gc()
2861 dev->gc_chunk = 0; in yaffs_check_gc()
2862 dev->n_clean_ups = 0; in yaffs_check_gc()
2865 if (dev->gc_block > 0) { in yaffs_check_gc()
2866 dev->all_gcs++; in yaffs_check_gc()
2868 dev->passive_gc_count++; in yaffs_check_gc()
2872 dev->n_erased_blocks, aggressive); in yaffs_check_gc()
2874 gc_ok = yaffs_gc_block(dev, dev->gc_block, aggressive); in yaffs_check_gc()
2877 if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && in yaffs_check_gc()
2878 dev->gc_block > 0) { in yaffs_check_gc()
2881 dev->n_erased_blocks, max_tries, in yaffs_check_gc()
2882 dev->gc_block); in yaffs_check_gc()
2884 } while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) && in yaffs_check_gc()
2885 (dev->gc_block > 0) && (max_tries < 2)); in yaffs_check_gc()
2895 int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency) in yaffs_bg_gc() argument
2897 int erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block; in yaffs_bg_gc()
2901 yaffs_check_gc(dev, 1); in yaffs_bg_gc()
2902 return erased_chunks > dev->n_free_chunks / 2; in yaffs_bg_gc()
2925 void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, in yaffs_chunk_del() argument
2936 dev->n_deletions++; in yaffs_chunk_del()
2937 block = chunk_id / dev->param.chunks_per_block; in yaffs_chunk_del()
2938 page = chunk_id % dev->param.chunks_per_block; in yaffs_chunk_del()
2940 if (!yaffs_check_chunk_bit(dev, block, page)) in yaffs_chunk_del()
2944 bi = yaffs_get_block_info(dev, block); in yaffs_chunk_del()
2946 yaffs2_update_oldest_dirty_seq(dev, block, bi); in yaffs_chunk_del()
2952 if (!dev->param.is_yaffs2 && mark_flash && in yaffs_chunk_del()
2957 yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags); in yaffs_chunk_del()
2958 yaffs_handle_chunk_update(dev, chunk_id, &tags); in yaffs_chunk_del()
2960 dev->n_unmarked_deletions++; in yaffs_chunk_del()
2970 dev->n_free_chunks++; in yaffs_chunk_del()
2971 yaffs_clear_chunk_bit(dev, block, page); in yaffs_chunk_del()
2978 yaffs_block_became_dirty(dev, block); in yaffs_chunk_del()
2995 struct yaffs_dev *dev = in->my_dev; in yaffs_wr_data_obj() local
2997 yaffs_check_gc(dev, 0); in yaffs_wr_data_obj()
3017 if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) { in yaffs_wr_data_obj()
3025 yaffs_write_new_chunk(dev, buffer, &new_tags, use_reserve); in yaffs_wr_data_obj()
3031 yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); in yaffs_wr_data_obj()
3068 struct yaffs_dev *dev = obj->my_dev; in yaffs_apply_xattrib_mod() local
3069 int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); in yaffs_apply_xattrib_mod()
3092 struct yaffs_dev *dev = obj->my_dev; in yaffs_do_xattrib_fetch() local
3094 int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); in yaffs_do_xattrib_fetch()
3111 buffer = (char *)yaffs_get_temp_buffer(dev); in yaffs_do_xattrib_fetch()
3116 yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, (u8 *) buffer, &tags); in yaffs_do_xattrib_fetch()
3133 yaffs_release_temp_buffer(dev, (u8 *) buffer); in yaffs_do_xattrib_fetch()
3163 struct yaffs_dev *dev; in yaffs_check_obj_details_loaded() local
3169 dev = in->my_dev; in yaffs_check_obj_details_loaded()
3171 buf = yaffs_get_temp_buffer(dev); in yaffs_check_obj_details_loaded()
3173 yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags); in yaffs_check_obj_details_loaded()
3184 yaffs_release_temp_buffer(dev, buf); in yaffs_check_obj_details_loaded()
3187 static void yaffs_load_name_from_oh(struct yaffs_dev *dev, YCHAR *name, in yaffs_load_name_from_oh() argument
3191 if (dev->param.auto_unicode) { in yaffs_load_name_from_oh()
3214 static void yaffs_load_oh_from_name(struct yaffs_dev *dev, YCHAR *oh_name, in yaffs_load_oh_from_name() argument
3221 if (dev->param.auto_unicode) { in yaffs_load_oh_from_name()
3264 struct yaffs_dev *dev = in->my_dev; in yaffs_update_oh() local
3278 if (in->fake && in != dev->root_dir && !force && !xmod) in yaffs_update_oh()
3281 yaffs_check_gc(dev, 0); in yaffs_update_oh()
3290 yaffs_rd_chunk_tags_nand(dev, prev_chunk_id, in yaffs_update_oh()
3297 memset(buffer, 0xff, dev->data_bytes_per_chunk); in yaffs_update_oh()
3313 yaffs_load_oh_from_name(dev, oh->name, name); in yaffs_update_oh()
3373 yaffs_write_new_chunk(dev, buffer, &new_tags, in yaffs_update_oh()
3377 yaffs_release_temp_buffer(dev, buffer); in yaffs_update_oh()
3385 yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); in yaffs_update_oh()
3421 struct yaffs_dev *dev; in yaffs_file_rd() local
3423 dev = in->my_dev; in yaffs_file_rd()
3426 yaffs_addr_to_chunk(dev, offset, &chunk, &start); in yaffs_file_rd()
3432 if ((start + n) < dev->data_bytes_per_chunk) in yaffs_file_rd()
3435 n_copy = dev->data_bytes_per_chunk - start; in yaffs_file_rd()
3443 if (cache || n_copy != dev->data_bytes_per_chunk || in yaffs_file_rd()
3444 dev->param.inband_tags) { in yaffs_file_rd()
3445 if (dev->param.n_caches > 0) { in yaffs_file_rd()
3462 yaffs_use_cache(dev, cache, 0); in yaffs_file_rd()
3473 yaffs_get_temp_buffer(dev); in yaffs_file_rd()
3478 yaffs_release_temp_buffer(dev, local_buffer); in yaffs_file_rd()
3506 struct yaffs_dev *dev; in yaffs_do_file_wr() local
3508 dev = in->my_dev; in yaffs_do_file_wr()
3511 yaffs_addr_to_chunk(dev, offset, &chunk, &start); in yaffs_do_file_wr()
3514 dev->data_bytes_per_chunk + start != offset || in yaffs_do_file_wr()
3515 start >= dev->data_bytes_per_chunk) { in yaffs_do_file_wr()
3526 if ((start + n) < dev->data_bytes_per_chunk) { in yaffs_do_file_wr()
3536 dev->data_bytes_per_chunk); in yaffs_do_file_wr()
3545 if (n_bytes_read > dev->data_bytes_per_chunk) in yaffs_do_file_wr()
3546 n_bytes_read = dev->data_bytes_per_chunk; in yaffs_do_file_wr()
3553 n_writeback > dev->data_bytes_per_chunk) in yaffs_do_file_wr()
3557 n_copy = dev->data_bytes_per_chunk - start; in yaffs_do_file_wr()
3558 n_writeback = dev->data_bytes_per_chunk; in yaffs_do_file_wr()
3561 if (n_copy != dev->data_bytes_per_chunk || in yaffs_do_file_wr()
3562 dev->param.inband_tags) { in yaffs_do_file_wr()
3567 if (dev->param.n_caches > 0) { in yaffs_do_file_wr()
3575 yaffs_check_alloc_available(dev, 1)) { in yaffs_do_file_wr()
3576 cache = yaffs_grab_chunk_cache(dev); in yaffs_do_file_wr()
3585 !yaffs_check_alloc_available(dev, in yaffs_do_file_wr()
3595 yaffs_use_cache(dev, cache, 1); in yaffs_do_file_wr()
3622 u8 *local_buffer = yaffs_get_temp_buffer(dev); in yaffs_do_file_wr()
3632 yaffs_release_temp_buffer(dev, local_buffer); in yaffs_do_file_wr()
3639 dev->data_bytes_per_chunk, 0); in yaffs_do_file_wr()
3675 struct yaffs_dev *dev = in->my_dev; in yaffs_prune_chunks() local
3684 yaffs_addr_to_chunk(dev, old_size - 1, &last_del, &dummy); in yaffs_prune_chunks()
3688 yaffs_addr_to_chunk(dev, new_size + dev->data_bytes_per_chunk - 1, in yaffs_prune_chunks()
3708 (dev->internal_start_block * dev->param.chunks_per_block) || in yaffs_prune_chunks()
3710 ((dev->internal_end_block + 1) * in yaffs_prune_chunks()
3711 dev->param.chunks_per_block)) { in yaffs_prune_chunks()
3717 yaffs_chunk_del(dev, chunk_id, 1, __LINE__); in yaffs_prune_chunks()
3726 struct yaffs_dev *dev = obj->my_dev; in yaffs_resize_file_down() local
3728 yaffs_addr_to_chunk(dev, new_size, &new_full, &new_partial); in yaffs_resize_file_down()
3734 u8 *local_buffer = yaffs_get_temp_buffer(dev); in yaffs_resize_file_down()
3739 dev->data_bytes_per_chunk - new_partial); in yaffs_resize_file_down()
3744 yaffs_release_temp_buffer(dev, local_buffer); in yaffs_resize_file_down()
3749 yaffs_prune_tree(dev, &obj->variant.file_variant); in yaffs_resize_file_down()
3754 struct yaffs_dev *dev = in->my_dev; in yaffs_resize_file() local
3760 yaffs_check_gc(dev, 0); in yaffs_resize_file()
3816 struct yaffs_dev *dev = in->my_dev; in yaffs_unlink_file_if_needed() local
3830 if (dev->param.disable_soft_del || dev->param.is_yaffs2) in yaffs_unlink_file_if_needed()
3845 struct yaffs_dev *dev = in->my_dev; in yaffs_del_file() local
3847 if (dev->param.disable_soft_del || dev->param.is_yaffs2) in yaffs_del_file()
4047 struct yaffs_dev *dev; in yaffs_rename_obj() local
4058 dev = old_dir->my_dev; in yaffs_rename_obj()
4096 dev->gc_disable = 1; in yaffs_rename_obj()
4101 dev->gc_disable = 0; in yaffs_rename_obj()
4117 void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, in yaffs_handle_shadowed_obj() argument
4126 obj = yaffs_find_by_number(dev, obj_id); in yaffs_handle_shadowed_obj()
4136 yaffs_find_or_create_by_number(dev, obj_id, YAFFS_OBJECT_TYPE_FILE); in yaffs_handle_shadowed_obj()
4140 yaffs_add_obj_to_dir(dev->unlinked_dir, obj); in yaffs_handle_shadowed_obj()
4145 void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list) in yaffs_link_fixup() argument
4154 in = yaffs_find_by_number(dev, in yaffs_link_fixup()
4171 static void yaffs_strip_deleted_objs(struct yaffs_dev *dev) in yaffs_strip_deleted_objs() argument
4180 if (dev->read_only) in yaffs_strip_deleted_objs()
4185 &dev->unlinked_dir->variant.dir_variant.children) { in yaffs_strip_deleted_objs()
4190 list_for_each_safe(i, n, &dev->del_dir->variant.dir_variant.children) { in yaffs_strip_deleted_objs()
4214 static int yaffs_has_null_parent(struct yaffs_dev *dev, struct yaffs_obj *obj) in yaffs_has_null_parent() argument
4216 return (obj == dev->del_dir || in yaffs_has_null_parent()
4217 obj == dev->unlinked_dir || obj == dev->root_dir); in yaffs_has_null_parent()
4220 static void yaffs_fix_hanging_objs(struct yaffs_dev *dev) in yaffs_fix_hanging_objs() argument
4230 if (dev->read_only) in yaffs_fix_hanging_objs()
4239 list_for_each_safe(lh, n, &dev->obj_bucket[i].list) { in yaffs_fix_hanging_objs()
4243 if (yaffs_has_null_parent(dev, obj)) { in yaffs_fix_hanging_objs()
4250 } else if (yaffs_has_null_parent(dev, parent)) { in yaffs_fix_hanging_objs()
4260 while (parent != dev->root_dir && in yaffs_fix_hanging_objs()
4268 if (parent != dev->root_dir) in yaffs_fix_hanging_objs()
4275 yaffs_add_obj_to_dir(dev->lost_n_found, obj); in yaffs_fix_hanging_objs()
4304 static void yaffs_empty_l_n_f(struct yaffs_dev *dev) in yaffs_empty_l_n_f() argument
4306 yaffs_del_dir_contents(dev->lost_n_found); in yaffs_empty_l_n_f()
4531 static int yaffs_check_dev_fns(const struct yaffs_dev *dev) in yaffs_check_dev_fns() argument
4534 if (!dev->param.erase_fn || !dev->param.initialise_flash_fn) in yaffs_check_dev_fns()
4538 if (dev->param.write_chunk_tags_fn && in yaffs_check_dev_fns()
4539 dev->param.read_chunk_tags_fn && in yaffs_check_dev_fns()
4540 !dev->param.write_chunk_fn && in yaffs_check_dev_fns()
4541 !dev->param.read_chunk_fn && in yaffs_check_dev_fns()
4542 dev->param.bad_block_fn && dev->param.query_block_fn) in yaffs_check_dev_fns()
4546 if (!dev->param.is_yaffs2 && in yaffs_check_dev_fns()
4547 !dev->param.write_chunk_tags_fn && in yaffs_check_dev_fns()
4548 !dev->param.read_chunk_tags_fn && in yaffs_check_dev_fns()
4549 dev->param.write_chunk_fn && in yaffs_check_dev_fns()
4550 dev->param.read_chunk_fn && in yaffs_check_dev_fns()
4551 !dev->param.bad_block_fn && !dev->param.query_block_fn) in yaffs_check_dev_fns()
4557 static int yaffs_create_initial_dir(struct yaffs_dev *dev) in yaffs_create_initial_dir() argument
4560 dev->lost_n_found = dev->root_dir = NULL; in yaffs_create_initial_dir()
4561 dev->unlinked_dir = dev->del_dir = NULL; in yaffs_create_initial_dir()
4562 dev->unlinked_dir = in yaffs_create_initial_dir()
4563 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); in yaffs_create_initial_dir()
4564 dev->del_dir = in yaffs_create_initial_dir()
4565 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); in yaffs_create_initial_dir()
4566 dev->root_dir = in yaffs_create_initial_dir()
4567 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT, in yaffs_create_initial_dir()
4569 dev->lost_n_found = in yaffs_create_initial_dir()
4570 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND, in yaffs_create_initial_dir()
4573 if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir in yaffs_create_initial_dir()
4574 && dev->del_dir) { in yaffs_create_initial_dir()
4575 yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found); in yaffs_create_initial_dir()
4581 int yaffs_guts_initialise(struct yaffs_dev *dev) in yaffs_guts_initialise() argument
4591 if (!dev) { in yaffs_guts_initialise()
4598 if (dev->is_mounted) { in yaffs_guts_initialise()
4603 dev->internal_start_block = dev->param.start_block; in yaffs_guts_initialise()
4604 dev->internal_end_block = dev->param.end_block; in yaffs_guts_initialise()
4605 dev->block_offset = 0; in yaffs_guts_initialise()
4606 dev->chunk_offset = 0; in yaffs_guts_initialise()
4607 dev->n_free_chunks = 0; in yaffs_guts_initialise()
4609 dev->gc_block = 0; in yaffs_guts_initialise()
4611 if (dev->param.start_block == 0) { in yaffs_guts_initialise()
4612 dev->internal_start_block = dev->param.start_block + 1; in yaffs_guts_initialise()
4613 dev->internal_end_block = dev->param.end_block + 1; in yaffs_guts_initialise()
4614 dev->block_offset = 1; in yaffs_guts_initialise()
4615 dev->chunk_offset = dev->param.chunks_per_block; in yaffs_guts_initialise()
4620 if ((!dev->param.inband_tags && dev->param.is_yaffs2 && in yaffs_guts_initialise()
4621 dev->param.total_bytes_per_chunk < 1024) || in yaffs_guts_initialise()
4622 (!dev->param.is_yaffs2 && in yaffs_guts_initialise()
4623 dev->param.total_bytes_per_chunk < 512) || in yaffs_guts_initialise()
4624 (dev->param.inband_tags && !dev->param.is_yaffs2) || in yaffs_guts_initialise()
4625 dev->param.chunks_per_block < 2 || in yaffs_guts_initialise()
4626 dev->param.n_reserved_blocks < 2 || in yaffs_guts_initialise()
4627 dev->internal_start_block <= 0 || in yaffs_guts_initialise()
4628 dev->internal_end_block <= 0 || in yaffs_guts_initialise()
4629 dev->internal_end_block <= in yaffs_guts_initialise()
4630 (dev->internal_start_block + dev->param.n_reserved_blocks + 2) in yaffs_guts_initialise()
4635 dev->param.total_bytes_per_chunk, in yaffs_guts_initialise()
4636 dev->param.is_yaffs2 ? "2" : "", in yaffs_guts_initialise()
4637 dev->param.inband_tags); in yaffs_guts_initialise()
4641 if (yaffs_init_nand(dev) != YAFFS_OK) { in yaffs_guts_initialise()
4647 if (dev->param.inband_tags) in yaffs_guts_initialise()
4648 dev->data_bytes_per_chunk = in yaffs_guts_initialise()
4649 dev->param.total_bytes_per_chunk - in yaffs_guts_initialise()
4652 dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk; in yaffs_guts_initialise()
4655 if (!yaffs_check_dev_fns(dev)) { in yaffs_guts_initialise()
4665 dev->is_mounted = 1; in yaffs_guts_initialise()
4672 x = dev->data_bytes_per_chunk; in yaffs_guts_initialise()
4674 dev->chunk_shift = calc_shifts(x); in yaffs_guts_initialise()
4675 x >>= dev->chunk_shift; in yaffs_guts_initialise()
4676 dev->chunk_div = x; in yaffs_guts_initialise()
4678 dev->chunk_mask = (1 << dev->chunk_shift) - 1; in yaffs_guts_initialise()
4685 x = dev->param.chunks_per_block * (dev->internal_end_block + 1); in yaffs_guts_initialise()
4690 if (!dev->param.wide_tnodes_disabled) { in yaffs_guts_initialise()
4695 dev->tnode_width = 16; in yaffs_guts_initialise()
4697 dev->tnode_width = bits; in yaffs_guts_initialise()
4699 dev->tnode_width = 16; in yaffs_guts_initialise()
4702 dev->tnode_mask = (1 << dev->tnode_width) - 1; in yaffs_guts_initialise()
4710 if (bits <= dev->tnode_width) in yaffs_guts_initialise()
4711 dev->chunk_grp_bits = 0; in yaffs_guts_initialise()
4713 dev->chunk_grp_bits = bits - dev->tnode_width; in yaffs_guts_initialise()
4715 dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8; in yaffs_guts_initialise()
4716 if (dev->tnode_size < sizeof(struct yaffs_tnode)) in yaffs_guts_initialise()
4717 dev->tnode_size = sizeof(struct yaffs_tnode); in yaffs_guts_initialise()
4719 dev->chunk_grp_size = 1 << dev->chunk_grp_bits; in yaffs_guts_initialise()
4721 if (dev->param.chunks_per_block < dev->chunk_grp_size) { in yaffs_guts_initialise()
4734 dev->all_gcs = 0; in yaffs_guts_initialise()
4735 dev->passive_gc_count = 0; in yaffs_guts_initialise()
4736 dev->oldest_dirty_gc_count = 0; in yaffs_guts_initialise()
4737 dev->bg_gcs = 0; in yaffs_guts_initialise()
4738 dev->gc_block_finder = 0; in yaffs_guts_initialise()
4739 dev->buffered_block = -1; in yaffs_guts_initialise()
4740 dev->doing_buffered_block_rewrite = 0; in yaffs_guts_initialise()
4741 dev->n_deleted_files = 0; in yaffs_guts_initialise()
4742 dev->n_bg_deletions = 0; in yaffs_guts_initialise()
4743 dev->n_unlinked_files = 0; in yaffs_guts_initialise()
4744 dev->n_ecc_fixed = 0; in yaffs_guts_initialise()
4745 dev->n_ecc_unfixed = 0; in yaffs_guts_initialise()
4746 dev->n_tags_ecc_fixed = 0; in yaffs_guts_initialise()
4747 dev->n_tags_ecc_unfixed = 0; in yaffs_guts_initialise()
4748 dev->n_erase_failures = 0; in yaffs_guts_initialise()
4749 dev->n_erased_blocks = 0; in yaffs_guts_initialise()
4750 dev->gc_disable = 0; in yaffs_guts_initialise()
4751 dev->has_pending_prioritised_gc = 1; in yaffs_guts_initialise()
4753 INIT_LIST_HEAD(&dev->dirty_dirs); in yaffs_guts_initialise()
4754 dev->oldest_dirty_seq = 0; in yaffs_guts_initialise()
4755 dev->oldest_dirty_block = 0; in yaffs_guts_initialise()
4758 if (!yaffs_init_tmp_buffers(dev)) in yaffs_guts_initialise()
4761 dev->cache = NULL; in yaffs_guts_initialise()
4762 dev->gc_cleanup_list = NULL; in yaffs_guts_initialise()
4764 if (!init_failed && dev->param.n_caches > 0) { in yaffs_guts_initialise()
4768 dev->param.n_caches * sizeof(struct yaffs_cache); in yaffs_guts_initialise()
4770 if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES) in yaffs_guts_initialise()
4771 dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES; in yaffs_guts_initialise()
4773 dev->cache = kmalloc(cache_bytes, GFP_NOFS); in yaffs_guts_initialise()
4775 buf = (u8 *) dev->cache; in yaffs_guts_initialise()
4777 if (dev->cache) in yaffs_guts_initialise()
4778 memset(dev->cache, 0, cache_bytes); in yaffs_guts_initialise()
4780 for (i = 0; i < dev->param.n_caches && buf; i++) { in yaffs_guts_initialise()
4781 dev->cache[i].object = NULL; in yaffs_guts_initialise()
4782 dev->cache[i].last_use = 0; in yaffs_guts_initialise()
4783 dev->cache[i].dirty = 0; in yaffs_guts_initialise()
4784 dev->cache[i].data = buf = in yaffs_guts_initialise()
4785 kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); in yaffs_guts_initialise()
4790 dev->cache_last_use = 0; in yaffs_guts_initialise()
4793 dev->cache_hits = 0; in yaffs_guts_initialise()
4796 dev->gc_cleanup_list = in yaffs_guts_initialise()
4797 kmalloc(dev->param.chunks_per_block * sizeof(u32), in yaffs_guts_initialise()
4799 if (!dev->gc_cleanup_list) in yaffs_guts_initialise()
4803 if (dev->param.is_yaffs2) in yaffs_guts_initialise()
4804 dev->param.use_header_file_size = 1; in yaffs_guts_initialise()
4806 if (!init_failed && !yaffs_init_blocks(dev)) in yaffs_guts_initialise()
4809 yaffs_init_tnodes_and_objs(dev); in yaffs_guts_initialise()
4811 if (!init_failed && !yaffs_create_initial_dir(dev)) in yaffs_guts_initialise()
4814 if (!init_failed && dev->param.is_yaffs2 && in yaffs_guts_initialise()
4815 !dev->param.disable_summary && in yaffs_guts_initialise()
4816 !yaffs_summary_init(dev)) in yaffs_guts_initialise()
4821 if (dev->param.is_yaffs2) { in yaffs_guts_initialise()
4822 if (yaffs2_checkpt_restore(dev)) { in yaffs_guts_initialise()
4823 yaffs_check_obj_details_loaded(dev->root_dir); in yaffs_guts_initialise()
4833 yaffs_deinit_blocks(dev); in yaffs_guts_initialise()
4835 yaffs_deinit_tnodes_and_objs(dev); in yaffs_guts_initialise()
4837 dev->n_erased_blocks = 0; in yaffs_guts_initialise()
4838 dev->n_free_chunks = 0; in yaffs_guts_initialise()
4839 dev->alloc_block = -1; in yaffs_guts_initialise()
4840 dev->alloc_page = -1; in yaffs_guts_initialise()
4841 dev->n_deleted_files = 0; in yaffs_guts_initialise()
4842 dev->n_unlinked_files = 0; in yaffs_guts_initialise()
4843 dev->n_bg_deletions = 0; in yaffs_guts_initialise()
4845 if (!init_failed && !yaffs_init_blocks(dev)) in yaffs_guts_initialise()
4848 yaffs_init_tnodes_and_objs(dev); in yaffs_guts_initialise()
4851 && !yaffs_create_initial_dir(dev)) in yaffs_guts_initialise()
4854 if (!init_failed && !yaffs2_scan_backwards(dev)) in yaffs_guts_initialise()
4857 } else if (!yaffs1_scan(dev)) { in yaffs_guts_initialise()
4861 yaffs_strip_deleted_objs(dev); in yaffs_guts_initialise()
4862 yaffs_fix_hanging_objs(dev); in yaffs_guts_initialise()
4863 if (dev->param.empty_lost_n_found) in yaffs_guts_initialise()
4864 yaffs_empty_l_n_f(dev); in yaffs_guts_initialise()
4872 yaffs_deinitialise(dev); in yaffs_guts_initialise()
4877 dev->n_page_reads = 0; in yaffs_guts_initialise()
4878 dev->n_page_writes = 0; in yaffs_guts_initialise()
4879 dev->n_erasures = 0; in yaffs_guts_initialise()
4880 dev->n_gc_copies = 0; in yaffs_guts_initialise()
4881 dev->n_retried_writes = 0; in yaffs_guts_initialise()
4883 dev->n_retired_blocks = 0; in yaffs_guts_initialise()
4885 yaffs_verify_free_chunks(dev); in yaffs_guts_initialise()
4886 yaffs_verify_blocks(dev); in yaffs_guts_initialise()
4889 if (!dev->is_checkpointed && dev->blocks_in_checkpt > 0) in yaffs_guts_initialise()
4890 yaffs2_checkpt_invalidate(dev); in yaffs_guts_initialise()
4897 void yaffs_deinitialise(struct yaffs_dev *dev) in yaffs_deinitialise() argument
4899 if (dev->is_mounted) { in yaffs_deinitialise()
4902 yaffs_deinit_blocks(dev); in yaffs_deinitialise()
4903 yaffs_deinit_tnodes_and_objs(dev); in yaffs_deinitialise()
4904 yaffs_summary_deinit(dev); in yaffs_deinitialise()
4906 if (dev->param.n_caches > 0 && dev->cache) { in yaffs_deinitialise()
4908 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_deinitialise()
4909 kfree(dev->cache[i].data); in yaffs_deinitialise()
4910 dev->cache[i].data = NULL; in yaffs_deinitialise()
4913 kfree(dev->cache); in yaffs_deinitialise()
4914 dev->cache = NULL; in yaffs_deinitialise()
4917 kfree(dev->gc_cleanup_list); in yaffs_deinitialise()
4920 kfree(dev->temp_buffer[i].buffer); in yaffs_deinitialise()
4922 dev->is_mounted = 0; in yaffs_deinitialise()
4924 if (dev->param.deinitialise_flash_fn) in yaffs_deinitialise()
4925 dev->param.deinitialise_flash_fn(dev); in yaffs_deinitialise()
4929 int yaffs_count_free_chunks(struct yaffs_dev *dev) in yaffs_count_free_chunks() argument
4935 blk = dev->block_info; in yaffs_count_free_chunks()
4936 for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { in yaffs_count_free_chunks()
4943 (dev->param.chunks_per_block - blk->pages_in_use + in yaffs_count_free_chunks()
4954 int yaffs_get_n_free_chunks(struct yaffs_dev *dev) in yaffs_get_n_free_chunks() argument
4962 n_free = dev->n_free_chunks; in yaffs_get_n_free_chunks()
4963 n_free += dev->n_deleted_files; in yaffs_get_n_free_chunks()
4967 for (n_dirty_caches = 0, i = 0; i < dev->param.n_caches; i++) { in yaffs_get_n_free_chunks()
4968 if (dev->cache[i].dirty) in yaffs_get_n_free_chunks()
4975 ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block); in yaffs_get_n_free_chunks()
4978 blocks_for_checkpt = yaffs_calc_checkpt_blocks_required(dev); in yaffs_get_n_free_chunks()
4980 n_free -= (blocks_for_checkpt * dev->param.chunks_per_block); in yaffs_get_n_free_chunks()