Lines Matching refs:dev
47 void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr, in yaffs_addr_to_chunk() argument
53 chunk = (u32) (addr >> dev->chunk_shift); in yaffs_addr_to_chunk()
55 if (dev->chunk_div == 1) { in yaffs_addr_to_chunk()
57 offset = (u32) (addr & dev->chunk_mask); in yaffs_addr_to_chunk()
63 chunk /= dev->chunk_div; in yaffs_addr_to_chunk()
65 chunk_base = ((loff_t) chunk) * dev->data_bytes_per_chunk; in yaffs_addr_to_chunk()
123 static int yaffs_init_tmp_buffers(struct yaffs_dev *dev) in yaffs_init_tmp_buffers() argument
128 memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer)); in yaffs_init_tmp_buffers()
131 dev->temp_buffer[i].in_use = 0; in yaffs_init_tmp_buffers()
132 buf = kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); in yaffs_init_tmp_buffers()
133 dev->temp_buffer[i].buffer = buf; in yaffs_init_tmp_buffers()
139 u8 *yaffs_get_temp_buffer(struct yaffs_dev * dev) in yaffs_get_temp_buffer() argument
143 dev->temp_in_use++; in yaffs_get_temp_buffer()
144 if (dev->temp_in_use > dev->max_temp) in yaffs_get_temp_buffer()
145 dev->max_temp = dev->temp_in_use; in yaffs_get_temp_buffer()
148 if (dev->temp_buffer[i].in_use == 0) { in yaffs_get_temp_buffer()
149 dev->temp_buffer[i].in_use = 1; in yaffs_get_temp_buffer()
150 return dev->temp_buffer[i].buffer; in yaffs_get_temp_buffer()
160 dev->unmanaged_buffer_allocs++; in yaffs_get_temp_buffer()
161 return kmalloc(dev->data_bytes_per_chunk, GFP_NOFS); in yaffs_get_temp_buffer()
165 void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer) in yaffs_release_temp_buffer() argument
169 dev->temp_in_use--; in yaffs_release_temp_buffer()
172 if (dev->temp_buffer[i].buffer == buffer) { in yaffs_release_temp_buffer()
173 dev->temp_buffer[i].in_use = 0; in yaffs_release_temp_buffer()
183 dev->unmanaged_buffer_deallocs++; in yaffs_release_temp_buffer()
191 int yaffs_is_managed_tmp_buffer(struct yaffs_dev *dev, const u8 *buffer) in yaffs_is_managed_tmp_buffer() argument
196 if (dev->temp_buffer[i].buffer == buffer) in yaffs_is_managed_tmp_buffer()
200 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_is_managed_tmp_buffer()
201 if (dev->cache[i].data == buffer) in yaffs_is_managed_tmp_buffer()
205 if (buffer == dev->checkpt_buffer) in yaffs_is_managed_tmp_buffer()
218 static void yaffs_handle_chunk_wr_ok(struct yaffs_dev *dev, int nand_chunk, in yaffs_handle_chunk_wr_ok() argument
224 static void yaffs_handle_chunk_update(struct yaffs_dev *dev, int nand_chunk, in yaffs_handle_chunk_update() argument
229 void yaffs_handle_chunk_error(struct yaffs_dev *dev, in yaffs_handle_chunk_error() argument
234 dev->has_pending_prioritised_gc = 1; in yaffs_handle_chunk_error()
246 static void yaffs_handle_chunk_wr_error(struct yaffs_dev *dev, int nand_chunk, in yaffs_handle_chunk_wr_error() argument
249 int flash_block = nand_chunk / dev->param.chunks_per_block; in yaffs_handle_chunk_wr_error()
250 struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); in yaffs_handle_chunk_wr_error()
252 yaffs_handle_chunk_error(dev, bi); in yaffs_handle_chunk_wr_error()
263 yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); in yaffs_handle_chunk_wr_error()
264 yaffs_skip_rest_of_block(dev); in yaffs_handle_chunk_wr_error()
287 struct yaffs_obj *yaffs_root(struct yaffs_dev *dev) in yaffs_root() argument
289 return dev->root_dir; in yaffs_root()
292 struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev) in yaffs_lost_n_found() argument
294 return dev->lost_n_found; in yaffs_lost_n_found()
312 static int yaffs_check_chunk_erased(struct yaffs_dev *dev, int nand_chunk) in yaffs_check_chunk_erased() argument
315 u8 *data = yaffs_get_temp_buffer(dev); in yaffs_check_chunk_erased()
318 yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags); in yaffs_check_chunk_erased()
323 if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || in yaffs_check_chunk_erased()
330 yaffs_release_temp_buffer(dev, data); in yaffs_check_chunk_erased()
336 static int yaffs_verify_chunk_written(struct yaffs_dev *dev, in yaffs_verify_chunk_written() argument
343 u8 *buffer = yaffs_get_temp_buffer(dev); in yaffs_verify_chunk_written()
345 yaffs_rd_chunk_tags_nand(dev, nand_chunk, buffer, &temp_tags); in yaffs_verify_chunk_written()
346 if (memcmp(buffer, data, dev->data_bytes_per_chunk) || in yaffs_verify_chunk_written()
352 yaffs_release_temp_buffer(dev, buffer); in yaffs_verify_chunk_written()
358 int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks) in yaffs_check_alloc_available() argument
361 int reserved_blocks = dev->param.n_reserved_blocks; in yaffs_check_alloc_available()
364 checkpt_blocks = yaffs_calc_checkpt_blocks_required(dev); in yaffs_check_alloc_available()
367 (reserved_blocks + checkpt_blocks) * dev->param.chunks_per_block; in yaffs_check_alloc_available()
369 return (dev->n_free_chunks > (reserved_chunks + n_chunks)); in yaffs_check_alloc_available()
372 static int yaffs_find_alloc_block(struct yaffs_dev *dev) in yaffs_find_alloc_block() argument
377 if (dev->n_erased_blocks < 1) { in yaffs_find_alloc_block()
389 for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { in yaffs_find_alloc_block()
390 dev->alloc_block_finder++; in yaffs_find_alloc_block()
391 if (dev->alloc_block_finder < dev->internal_start_block in yaffs_find_alloc_block()
392 || dev->alloc_block_finder > dev->internal_end_block) { in yaffs_find_alloc_block()
393 dev->alloc_block_finder = dev->internal_start_block; in yaffs_find_alloc_block()
396 bi = yaffs_get_block_info(dev, dev->alloc_block_finder); in yaffs_find_alloc_block()
400 dev->seq_number++; in yaffs_find_alloc_block()
401 bi->seq_number = dev->seq_number; in yaffs_find_alloc_block()
402 dev->n_erased_blocks--; in yaffs_find_alloc_block()
405 dev->alloc_block_finder, dev->seq_number, in yaffs_find_alloc_block()
406 dev->n_erased_blocks); in yaffs_find_alloc_block()
407 return dev->alloc_block_finder; in yaffs_find_alloc_block()
413 dev->n_erased_blocks); in yaffs_find_alloc_block()
418 static int yaffs_alloc_chunk(struct yaffs_dev *dev, int use_reserver, in yaffs_alloc_chunk() argument
424 if (dev->alloc_block < 0) { in yaffs_alloc_chunk()
426 dev->alloc_block = yaffs_find_alloc_block(dev); in yaffs_alloc_chunk()
427 dev->alloc_page = 0; in yaffs_alloc_chunk()
430 if (!use_reserver && !yaffs_check_alloc_available(dev, 1)) { in yaffs_alloc_chunk()
435 if (dev->n_erased_blocks < dev->param.n_reserved_blocks in yaffs_alloc_chunk()
436 && dev->alloc_page == 0) in yaffs_alloc_chunk()
440 if (dev->alloc_block >= 0) { in yaffs_alloc_chunk()
441 bi = yaffs_get_block_info(dev, dev->alloc_block); in yaffs_alloc_chunk()
443 ret_val = (dev->alloc_block * dev->param.chunks_per_block) + in yaffs_alloc_chunk()
444 dev->alloc_page; in yaffs_alloc_chunk()
446 yaffs_set_chunk_bit(dev, dev->alloc_block, dev->alloc_page); in yaffs_alloc_chunk()
448 dev->alloc_page++; in yaffs_alloc_chunk()
450 dev->n_free_chunks--; in yaffs_alloc_chunk()
453 if (dev->alloc_page >= dev->param.chunks_per_block) { in yaffs_alloc_chunk()
455 dev->alloc_block = -1; in yaffs_alloc_chunk()
470 static int yaffs_get_erased_chunks(struct yaffs_dev *dev) in yaffs_get_erased_chunks() argument
474 n = dev->n_erased_blocks * dev->param.chunks_per_block; in yaffs_get_erased_chunks()
476 if (dev->alloc_block > 0) in yaffs_get_erased_chunks()
477 n += (dev->param.chunks_per_block - dev->alloc_page); in yaffs_get_erased_chunks()
487 void yaffs_skip_rest_of_block(struct yaffs_dev *dev) in yaffs_skip_rest_of_block() argument
491 if (dev->alloc_block > 0) { in yaffs_skip_rest_of_block()
492 bi = yaffs_get_block_info(dev, dev->alloc_block); in yaffs_skip_rest_of_block()
495 dev->alloc_block = -1; in yaffs_skip_rest_of_block()
500 static int yaffs_write_new_chunk(struct yaffs_dev *dev, in yaffs_write_new_chunk() argument
508 yaffs2_checkpt_invalidate(dev); in yaffs_write_new_chunk()
514 chunk = yaffs_alloc_chunk(dev, use_reserver, &bi); in yaffs_write_new_chunk()
547 if (dev->param.always_check_erased) in yaffs_write_new_chunk()
551 erased_ok = yaffs_check_chunk_erased(dev, chunk); in yaffs_write_new_chunk()
560 yaffs_chunk_del(dev, chunk, 1, __LINE__); in yaffs_write_new_chunk()
561 yaffs_skip_rest_of_block(dev); in yaffs_write_new_chunk()
566 write_ok = yaffs_wr_chunk_tags_nand(dev, chunk, data, tags); in yaffs_write_new_chunk()
570 yaffs_verify_chunk_written(dev, chunk, data, tags); in yaffs_write_new_chunk()
575 yaffs_handle_chunk_wr_error(dev, chunk, erased_ok); in yaffs_write_new_chunk()
582 yaffs_handle_chunk_wr_ok(dev, chunk, data, tags); in yaffs_write_new_chunk()
594 dev->n_retried_writes += (attempts - 1); in yaffs_write_new_chunk()
604 static void yaffs_retire_block(struct yaffs_dev *dev, int flash_block) in yaffs_retire_block() argument
606 struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); in yaffs_retire_block()
608 yaffs2_checkpt_invalidate(dev); in yaffs_retire_block()
610 yaffs2_clear_oldest_dirty_seq(dev, bi); in yaffs_retire_block()
612 if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) { in yaffs_retire_block()
613 if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) { in yaffs_retire_block()
620 flash_block * dev->param.chunks_per_block; in yaffs_retire_block()
622 u8 *buffer = yaffs_get_temp_buffer(dev); in yaffs_retire_block()
624 memset(buffer, 0xff, dev->data_bytes_per_chunk); in yaffs_retire_block()
627 if (dev->param.write_chunk_tags_fn(dev, chunk_id - in yaffs_retire_block()
628 dev->chunk_offset, in yaffs_retire_block()
635 yaffs_release_temp_buffer(dev, buffer); in yaffs_retire_block()
643 dev->n_retired_blocks++; in yaffs_retire_block()
692 loff_t yaffs_max_file_size(struct yaffs_dev *dev) in yaffs_max_file_size() argument
694 return ((loff_t) YAFFS_MAX_CHUNK_ID) * dev->data_bytes_per_chunk; in yaffs_max_file_size()
704 struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev) in yaffs_get_tnode() argument
706 struct yaffs_tnode *tn = yaffs_alloc_raw_tnode(dev); in yaffs_get_tnode()
709 memset(tn, 0, dev->tnode_size); in yaffs_get_tnode()
710 dev->n_tnodes++; in yaffs_get_tnode()
713 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_get_tnode()
719 static void yaffs_free_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn) in yaffs_free_tnode() argument
721 yaffs_free_raw_tnode(dev, tn); in yaffs_free_tnode()
722 dev->n_tnodes--; in yaffs_free_tnode()
723 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_free_tnode()
726 static void yaffs_deinit_tnodes_and_objs(struct yaffs_dev *dev) in yaffs_deinit_tnodes_and_objs() argument
728 yaffs_deinit_raw_tnodes_and_objs(dev); in yaffs_deinit_tnodes_and_objs()
729 dev->n_obj = 0; in yaffs_deinit_tnodes_and_objs()
730 dev->n_tnodes = 0; in yaffs_deinit_tnodes_and_objs()
733 void yaffs_load_tnode_0(struct yaffs_dev *dev, struct yaffs_tnode *tn, in yaffs_load_tnode_0() argument
743 val >>= dev->chunk_grp_bits; in yaffs_load_tnode_0()
745 bit_in_map = pos * dev->tnode_width; in yaffs_load_tnode_0()
749 mask = dev->tnode_mask << bit_in_word; in yaffs_load_tnode_0()
754 if (dev->tnode_width > (32 - bit_in_word)) { in yaffs_load_tnode_0()
758 dev->tnode_mask >> bit_in_word; in yaffs_load_tnode_0()
764 u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, in yaffs_get_group_base() argument
775 bit_in_map = pos * dev->tnode_width; in yaffs_get_group_base()
781 if (dev->tnode_width > (32 - bit_in_word)) { in yaffs_get_group_base()
787 val &= dev->tnode_mask; in yaffs_get_group_base()
788 val <<= dev->chunk_grp_bits; in yaffs_get_group_base()
801 struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, in yaffs_find_tnode_0() argument
854 struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, in yaffs_add_find_tnode_0() argument
886 tn = yaffs_get_tnode(dev); in yaffs_add_find_tnode_0()
914 tn->internal[x] = yaffs_get_tnode(dev); in yaffs_add_find_tnode_0()
922 yaffs_free_tnode(dev, in yaffs_add_find_tnode_0()
928 tn->internal[x] = yaffs_get_tnode(dev); in yaffs_add_find_tnode_0()
941 (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8); in yaffs_add_find_tnode_0()
942 yaffs_free_tnode(dev, passed_tn); in yaffs_add_find_tnode_0()
958 static int yaffs_find_chunk_in_group(struct yaffs_dev *dev, int the_chunk, in yaffs_find_chunk_in_group() argument
964 for (j = 0; the_chunk && j < dev->chunk_grp_size; j++) { in yaffs_find_chunk_in_group()
966 (dev, the_chunk / dev->param.chunks_per_block, in yaffs_find_chunk_in_group()
967 the_chunk % dev->param.chunks_per_block)) { in yaffs_find_chunk_in_group()
969 if (dev->chunk_grp_size == 1) in yaffs_find_chunk_in_group()
972 yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL, in yaffs_find_chunk_in_group()
994 struct yaffs_dev *dev = in->my_dev; in yaffs_find_chunk_in_file() local
1001 tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); in yaffs_find_chunk_in_file()
1006 the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); in yaffs_find_chunk_in_file()
1008 ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, in yaffs_find_chunk_in_file()
1020 struct yaffs_dev *dev = in->my_dev; in yaffs_find_del_file_chunk() local
1028 tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); in yaffs_find_del_file_chunk()
1033 the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); in yaffs_find_del_file_chunk()
1035 ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, in yaffs_find_del_file_chunk()
1040 yaffs_load_tnode_0(dev, tn, inode_chunk, 0); in yaffs_find_del_file_chunk()
1056 struct yaffs_dev *dev = in->my_dev; in yaffs_put_chunk_in_file() local
1074 yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); in yaffs_put_chunk_in_file()
1078 tn = yaffs_add_find_tnode_0(dev, in yaffs_put_chunk_in_file()
1088 existing_cunk = yaffs_get_group_base(dev, tn, inode_chunk); in yaffs_put_chunk_in_file()
1119 yaffs_rd_chunk_tags_nand(dev, in yaffs_put_chunk_in_file()
1155 yaffs_chunk_del(dev, existing_cunk, 1, in yaffs_put_chunk_in_file()
1163 yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); in yaffs_put_chunk_in_file()
1173 yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk); in yaffs_put_chunk_in_file()
1178 static void yaffs_soft_del_chunk(struct yaffs_dev *dev, int chunk) in yaffs_soft_del_chunk() argument
1185 block_no = chunk / dev->param.chunks_per_block; in yaffs_soft_del_chunk()
1186 the_block = yaffs_get_block_info(dev, block_no); in yaffs_soft_del_chunk()
1189 dev->n_free_chunks++; in yaffs_soft_del_chunk()
1190 yaffs2_update_oldest_dirty_seq(dev, block_no, the_block); in yaffs_soft_del_chunk()
1208 struct yaffs_dev *dev = in->my_dev; in yaffs_soft_del_worker() local
1226 yaffs_free_tnode(dev, in yaffs_soft_del_worker()
1239 the_chunk = yaffs_get_group_base(dev, tn, i); in yaffs_soft_del_worker()
1241 yaffs_soft_del_chunk(dev, the_chunk); in yaffs_soft_del_worker()
1242 yaffs_load_tnode_0(dev, tn, i, 0); in yaffs_soft_del_worker()
1250 struct yaffs_dev *dev = obj->my_dev; in yaffs_remove_obj_from_dir() local
1258 if (dev && dev->param.remove_obj_fn) in yaffs_remove_obj_from_dir()
1259 dev->param.remove_obj_fn(obj); in yaffs_remove_obj_from_dir()
1369 struct yaffs_dev *dev = obj->my_dev; in yaffs_obj_cache_dirty() local
1375 cache = &dev->cache[i]; in yaffs_obj_cache_dirty()
1385 struct yaffs_dev *dev = obj->my_dev; in yaffs_flush_file_cache() local
1399 if (dev->cache[i].object == obj && in yaffs_flush_file_cache()
1400 dev->cache[i].dirty) { in yaffs_flush_file_cache()
1402 dev->cache[i].chunk_id < lowest) { in yaffs_flush_file_cache()
1403 cache = &dev->cache[i]; in yaffs_flush_file_cache()
1432 void yaffs_flush_whole_cache(struct yaffs_dev *dev) in yaffs_flush_whole_cache() argument
1435 int n_caches = dev->param.n_caches; in yaffs_flush_whole_cache()
1444 if (dev->cache[i].object && dev->cache[i].dirty) in yaffs_flush_whole_cache()
1445 obj = dev->cache[i].object; in yaffs_flush_whole_cache()
1458 static struct yaffs_cache *yaffs_grab_chunk_worker(struct yaffs_dev *dev) in yaffs_grab_chunk_worker() argument
1462 if (dev->param.n_caches > 0) { in yaffs_grab_chunk_worker()
1463 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_grab_chunk_worker()
1464 if (!dev->cache[i].object) in yaffs_grab_chunk_worker()
1465 return &dev->cache[i]; in yaffs_grab_chunk_worker()
1471 static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev) in yaffs_grab_chunk_cache() argument
1478 if (dev->param.n_caches < 1) in yaffs_grab_chunk_cache()
1483 cache = yaffs_grab_chunk_worker(dev); in yaffs_grab_chunk_cache()
1494 the_obj = dev->cache[0].object; in yaffs_grab_chunk_cache()
1498 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_grab_chunk_cache()
1499 if (dev->cache[i].object && in yaffs_grab_chunk_cache()
1500 !dev->cache[i].locked && in yaffs_grab_chunk_cache()
1501 (dev->cache[i].last_use < usage || in yaffs_grab_chunk_cache()
1503 usage = dev->cache[i].last_use; in yaffs_grab_chunk_cache()
1504 the_obj = dev->cache[i].object; in yaffs_grab_chunk_cache()
1505 cache = &dev->cache[i]; in yaffs_grab_chunk_cache()
1512 cache = yaffs_grab_chunk_worker(dev); in yaffs_grab_chunk_cache()
1522 struct yaffs_dev *dev = obj->my_dev; in yaffs_find_chunk_cache() local
1525 if (dev->param.n_caches < 1) in yaffs_find_chunk_cache()
1528 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_find_chunk_cache()
1529 if (dev->cache[i].object == obj && in yaffs_find_chunk_cache()
1530 dev->cache[i].chunk_id == chunk_id) { in yaffs_find_chunk_cache()
1531 dev->cache_hits++; in yaffs_find_chunk_cache()
1533 return &dev->cache[i]; in yaffs_find_chunk_cache()
1540 static void yaffs_use_cache(struct yaffs_dev *dev, struct yaffs_cache *cache, in yaffs_use_cache() argument
1545 if (dev->param.n_caches < 1) in yaffs_use_cache()
1548 if (dev->cache_last_use < 0 || in yaffs_use_cache()
1549 dev->cache_last_use > 100000000) { in yaffs_use_cache()
1551 for (i = 1; i < dev->param.n_caches; i++) in yaffs_use_cache()
1552 dev->cache[i].last_use = 0; in yaffs_use_cache()
1554 dev->cache_last_use = 0; in yaffs_use_cache()
1556 dev->cache_last_use++; in yaffs_use_cache()
1557 cache->last_use = dev->cache_last_use; in yaffs_use_cache()
1585 struct yaffs_dev *dev = in->my_dev; in yaffs_invalidate_whole_cache() local
1587 if (dev->param.n_caches > 0) { in yaffs_invalidate_whole_cache()
1589 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_invalidate_whole_cache()
1590 if (dev->cache[i].object == in) in yaffs_invalidate_whole_cache()
1591 dev->cache[i].object = NULL; in yaffs_invalidate_whole_cache()
1599 struct yaffs_dev *dev = obj->my_dev; in yaffs_unhash_obj() local
1605 dev->obj_bucket[bucket].count--; in yaffs_unhash_obj()
1612 struct yaffs_dev *dev; in yaffs_free_obj() local
1618 dev = obj->my_dev; in yaffs_free_obj()
1636 yaffs_free_raw_obj(dev, obj); in yaffs_free_obj()
1637 dev->n_obj--; in yaffs_free_obj()
1638 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_free_obj()
1707 static struct yaffs_tnode *yaffs_prune_worker(struct yaffs_dev *dev, in yaffs_prune_worker() argument
1723 yaffs_prune_worker(dev, in yaffs_prune_worker()
1733 int tnode_size_u32 = dev->tnode_size / sizeof(u32); in yaffs_prune_worker()
1744 yaffs_free_tnode(dev, tn); in yaffs_prune_worker()
1750 static int yaffs_prune_tree(struct yaffs_dev *dev, in yaffs_prune_tree() argument
1762 yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0); in yaffs_prune_tree()
1783 yaffs_free_tnode(dev, tn); in yaffs_prune_tree()
1795 static struct yaffs_obj *yaffs_alloc_empty_obj(struct yaffs_dev *dev) in yaffs_alloc_empty_obj() argument
1797 struct yaffs_obj *obj = yaffs_alloc_raw_obj(dev); in yaffs_alloc_empty_obj()
1802 dev->n_obj++; in yaffs_alloc_empty_obj()
1809 obj->my_dev = dev; in yaffs_alloc_empty_obj()
1817 if (dev->root_dir) { in yaffs_alloc_empty_obj()
1818 obj->parent = dev->root_dir; in yaffs_alloc_empty_obj()
1820 &dev->root_dir->variant.dir_variant.children); in yaffs_alloc_empty_obj()
1827 if (dev->lost_n_found) in yaffs_alloc_empty_obj()
1828 yaffs_add_obj_to_dir(dev->lost_n_found, obj); in yaffs_alloc_empty_obj()
1832 dev->checkpoint_blocks_required = 0; /* force recalculation */ in yaffs_alloc_empty_obj()
1837 static int yaffs_find_nice_bucket(struct yaffs_dev *dev) in yaffs_find_nice_bucket() argument
1848 dev->bucket_finder++; in yaffs_find_nice_bucket()
1849 dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS; in yaffs_find_nice_bucket()
1850 if (dev->obj_bucket[dev->bucket_finder].count < lowest) { in yaffs_find_nice_bucket()
1851 lowest = dev->obj_bucket[dev->bucket_finder].count; in yaffs_find_nice_bucket()
1852 l = dev->bucket_finder; in yaffs_find_nice_bucket()
1859 static int yaffs_new_obj_id(struct yaffs_dev *dev) in yaffs_new_obj_id() argument
1861 int bucket = yaffs_find_nice_bucket(dev); in yaffs_new_obj_id()
1873 list_for_each(i, &dev->obj_bucket[bucket].list) { in yaffs_new_obj_id()
1888 struct yaffs_dev *dev = in->my_dev; in yaffs_hash_obj() local
1890 list_add(&in->hash_link, &dev->obj_bucket[bucket].list); in yaffs_hash_obj()
1891 dev->obj_bucket[bucket].count++; in yaffs_hash_obj()
1894 struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number) in yaffs_find_by_number() argument
1900 list_for_each(i, &dev->obj_bucket[bucket].list) { in yaffs_find_by_number()
1914 struct yaffs_obj *yaffs_new_obj(struct yaffs_dev *dev, int number, in yaffs_new_obj() argument
1921 number = yaffs_new_obj_id(dev); in yaffs_new_obj()
1924 tn = yaffs_get_tnode(dev); in yaffs_new_obj()
1929 the_obj = yaffs_alloc_empty_obj(dev); in yaffs_new_obj()
1932 yaffs_free_tnode(dev, tn); in yaffs_new_obj()
1949 yaffs_max_file_size(dev); in yaffs_new_obj()
1969 static struct yaffs_obj *yaffs_create_fake_dir(struct yaffs_dev *dev, in yaffs_create_fake_dir() argument
1974 yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); in yaffs_create_fake_dir()
1985 obj->my_dev = dev; in yaffs_create_fake_dir()
1992 static void yaffs_init_tnodes_and_objs(struct yaffs_dev *dev) in yaffs_init_tnodes_and_objs() argument
1996 dev->n_obj = 0; in yaffs_init_tnodes_and_objs()
1997 dev->n_tnodes = 0; in yaffs_init_tnodes_and_objs()
1998 yaffs_init_raw_tnodes_and_objs(dev); in yaffs_init_tnodes_and_objs()
2001 INIT_LIST_HEAD(&dev->obj_bucket[i].list); in yaffs_init_tnodes_and_objs()
2002 dev->obj_bucket[i].count = 0; in yaffs_init_tnodes_and_objs()
2006 struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, in yaffs_find_or_create_by_number() argument
2013 the_obj = yaffs_find_by_number(dev, number); in yaffs_find_or_create_by_number()
2016 the_obj = yaffs_new_obj(dev, number, type); in yaffs_find_or_create_by_number()
2057 struct yaffs_dev *dev; in yaffs_update_parent() local
2061 dev = obj->my_dev; in yaffs_update_parent()
2064 if (dev->param.defered_dir_update) { in yaffs_update_parent()
2068 list_add(link, &dev->dirty_dirs); in yaffs_update_parent()
2079 void yaffs_update_dirty_dirs(struct yaffs_dev *dev) in yaffs_update_dirty_dirs() argument
2088 while (!list_empty(&dev->dirty_dirs)) { in yaffs_update_dirty_dirs()
2089 link = dev->dirty_dirs.next; in yaffs_update_dirty_dirs()
2122 struct yaffs_dev *dev = parent->my_dev; in yaffs_create_obj() local
2135 in = yaffs_new_obj(dev, -1, type); in yaffs_create_obj()
2239 static void yaffs_deinit_blocks(struct yaffs_dev *dev) in yaffs_deinit_blocks() argument
2241 if (dev->block_info_alt && dev->block_info) in yaffs_deinit_blocks()
2242 vfree(dev->block_info); in yaffs_deinit_blocks()
2244 kfree(dev->block_info); in yaffs_deinit_blocks()
2246 dev->block_info_alt = 0; in yaffs_deinit_blocks()
2248 dev->block_info = NULL; in yaffs_deinit_blocks()
2250 if (dev->chunk_bits_alt && dev->chunk_bits) in yaffs_deinit_blocks()
2251 vfree(dev->chunk_bits); in yaffs_deinit_blocks()
2253 kfree(dev->chunk_bits); in yaffs_deinit_blocks()
2254 dev->chunk_bits_alt = 0; in yaffs_deinit_blocks()
2255 dev->chunk_bits = NULL; in yaffs_deinit_blocks()
2258 static int yaffs_init_blocks(struct yaffs_dev *dev) in yaffs_init_blocks() argument
2260 int n_blocks = dev->internal_end_block - dev->internal_start_block + 1; in yaffs_init_blocks()
2262 dev->block_info = NULL; in yaffs_init_blocks()
2263 dev->chunk_bits = NULL; in yaffs_init_blocks()
2264 dev->alloc_block = -1; /* force it to get a new one */ in yaffs_init_blocks()
2267 dev->block_info = in yaffs_init_blocks()
2269 if (!dev->block_info) { in yaffs_init_blocks()
2270 dev->block_info = in yaffs_init_blocks()
2272 dev->block_info_alt = 1; in yaffs_init_blocks()
2274 dev->block_info_alt = 0; in yaffs_init_blocks()
2277 if (!dev->block_info) in yaffs_init_blocks()
2281 dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; in yaffs_init_blocks()
2282 dev->chunk_bits = in yaffs_init_blocks()
2283 kmalloc(dev->chunk_bit_stride * n_blocks, GFP_NOFS); in yaffs_init_blocks()
2284 if (!dev->chunk_bits) { in yaffs_init_blocks()
2285 dev->chunk_bits = in yaffs_init_blocks()
2286 vmalloc(dev->chunk_bit_stride * n_blocks); in yaffs_init_blocks()
2287 dev->chunk_bits_alt = 1; in yaffs_init_blocks()
2289 dev->chunk_bits_alt = 0; in yaffs_init_blocks()
2291 if (!dev->chunk_bits) in yaffs_init_blocks()
2295 memset(dev->block_info, 0, n_blocks * sizeof(struct yaffs_block_info)); in yaffs_init_blocks()
2296 memset(dev->chunk_bits, 0, dev->chunk_bit_stride * n_blocks); in yaffs_init_blocks()
2300 yaffs_deinit_blocks(dev); in yaffs_init_blocks()
2305 void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no) in yaffs_block_became_dirty() argument
2307 struct yaffs_block_info *bi = yaffs_get_block_info(dev, block_no); in yaffs_block_became_dirty()
2320 yaffs2_clear_oldest_dirty_seq(dev, bi); in yaffs_block_became_dirty()
2325 if (block_no == dev->gc_block) in yaffs_block_became_dirty()
2326 dev->gc_block = 0; in yaffs_block_became_dirty()
2330 if (block_no == dev->gc_dirtiest) { in yaffs_block_became_dirty()
2331 dev->gc_dirtiest = 0; in yaffs_block_became_dirty()
2332 dev->gc_pages_in_use = 0; in yaffs_block_became_dirty()
2336 yaffs2_checkpt_invalidate(dev); in yaffs_block_became_dirty()
2337 erased_ok = yaffs_erase_block(dev, block_no); in yaffs_block_became_dirty()
2339 dev->n_erase_failures++; in yaffs_block_became_dirty()
2348 !yaffs_skip_verification(dev))) { in yaffs_block_became_dirty()
2349 for (i = 0; i < dev->param.chunks_per_block; i++) { in yaffs_block_became_dirty()
2350 if (!yaffs_check_chunk_erased(dev, in yaffs_block_became_dirty()
2351 block_no * dev->param.chunks_per_block + i)) { in yaffs_block_became_dirty()
2361 dev->n_free_chunks -= dev->param.chunks_per_block; in yaffs_block_became_dirty()
2362 yaffs_retire_block(dev, block_no); in yaffs_block_became_dirty()
2371 dev->n_erased_blocks++; in yaffs_block_became_dirty()
2379 yaffs_clear_chunk_bits(dev, block_no); in yaffs_block_became_dirty()
2384 static inline int yaffs_gc_process_chunk(struct yaffs_dev *dev, in yaffs_gc_process_chunk() argument
2396 yaffs_rd_chunk_tags_nand(dev, old_chunk, in yaffs_gc_process_chunk()
2398 object = yaffs_find_by_number(dev, tags.obj_id); in yaffs_gc_process_chunk()
2402 dev->gc_chunk, tags.obj_id, in yaffs_gc_process_chunk()
2405 if (object && !yaffs_skip_verification(dev)) { in yaffs_gc_process_chunk()
2452 dev->n_free_chunks--; in yaffs_gc_process_chunk()
2458 dev->gc_cleanup_list[dev->n_clean_ups] = tags.obj_id; in yaffs_gc_process_chunk()
2459 dev->n_clean_ups++; in yaffs_gc_process_chunk()
2471 dev->n_gc_copies++; in yaffs_gc_process_chunk()
2500 yaffs_write_new_chunk(dev, (u8 *) oh, &tags, 1); in yaffs_gc_process_chunk()
2503 yaffs_write_new_chunk(dev, buffer, &tags, 1); in yaffs_gc_process_chunk()
2524 yaffs_chunk_del(dev, old_chunk, mark_flash, __LINE__); in yaffs_gc_process_chunk()
2528 static int yaffs_gc_block(struct yaffs_dev *dev, int block, int whole_block) in yaffs_gc_block() argument
2535 int chunks_before = yaffs_get_erased_chunks(dev); in yaffs_gc_block()
2537 struct yaffs_block_info *bi = yaffs_get_block_info(dev, block); in yaffs_gc_block()
2553 dev->gc_disable = 1; in yaffs_gc_block()
2555 yaffs_summary_gc(dev, block); in yaffs_gc_block()
2557 if (is_checkpt_block || !yaffs_still_some_chunks(dev, block)) { in yaffs_gc_block()
2561 yaffs_block_became_dirty(dev, block); in yaffs_gc_block()
2564 u8 *buffer = yaffs_get_temp_buffer(dev); in yaffs_gc_block()
2566 yaffs_verify_blk(dev, bi, block); in yaffs_gc_block()
2568 max_copies = (whole_block) ? dev->param.chunks_per_block : 5; in yaffs_gc_block()
2569 old_chunk = block * dev->param.chunks_per_block + dev->gc_chunk; in yaffs_gc_block()
2573 dev->gc_chunk < dev->param.chunks_per_block && in yaffs_gc_block()
2576 dev->gc_chunk++, old_chunk++) { in yaffs_gc_block()
2577 if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) { in yaffs_gc_block()
2580 ret_val = yaffs_gc_process_chunk(dev, bi, in yaffs_gc_block()
2584 yaffs_release_temp_buffer(dev, buffer); in yaffs_gc_block()
2587 yaffs_verify_collected_blk(dev, bi, block); in yaffs_gc_block()
2598 for (i = 0; i < dev->n_clean_ups; i++) { in yaffs_gc_block()
2601 yaffs_find_by_number(dev, dev->gc_cleanup_list[i]); in yaffs_gc_block()
2603 yaffs_free_tnode(dev, in yaffs_gc_block()
2614 chunks_after = yaffs_get_erased_chunks(dev); in yaffs_gc_block()
2619 dev->gc_block = 0; in yaffs_gc_block()
2620 dev->gc_chunk = 0; in yaffs_gc_block()
2621 dev->n_clean_ups = 0; in yaffs_gc_block()
2624 dev->gc_disable = 0; in yaffs_gc_block()
2634 static unsigned yaffs_find_gc_block(struct yaffs_dev *dev, in yaffs_find_gc_block() argument
2646 if (dev->has_pending_prioritised_gc && !aggressive) { in yaffs_find_gc_block()
2647 dev->gc_dirtiest = 0; in yaffs_find_gc_block()
2648 bi = dev->block_info; in yaffs_find_gc_block()
2649 for (i = dev->internal_start_block; in yaffs_find_gc_block()
2650 i <= dev->internal_end_block && !selected; i++) { in yaffs_find_gc_block()
2655 yaffs_block_ok_for_gc(dev, bi)) { in yaffs_find_gc_block()
2670 !selected && dev->oldest_dirty_block > 0) in yaffs_find_gc_block()
2671 selected = dev->oldest_dirty_block; in yaffs_find_gc_block()
2674 dev->has_pending_prioritised_gc = 0; in yaffs_find_gc_block()
2686 dev->internal_end_block - dev->internal_start_block + 1; in yaffs_find_gc_block()
2688 threshold = dev->param.chunks_per_block; in yaffs_find_gc_block()
2694 max_threshold = dev->param.chunks_per_block / 2; in yaffs_find_gc_block()
2696 max_threshold = dev->param.chunks_per_block / 8; in yaffs_find_gc_block()
2701 threshold = background ? (dev->gc_not_done + 2) * 2 : 0; in yaffs_find_gc_block()
2714 (dev->gc_dirtiest < 1 || in yaffs_find_gc_block()
2715 dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH); in yaffs_find_gc_block()
2717 dev->gc_block_finder++; in yaffs_find_gc_block()
2718 if (dev->gc_block_finder < dev->internal_start_block || in yaffs_find_gc_block()
2719 dev->gc_block_finder > dev->internal_end_block) in yaffs_find_gc_block()
2720 dev->gc_block_finder = in yaffs_find_gc_block()
2721 dev->internal_start_block; in yaffs_find_gc_block()
2723 bi = yaffs_get_block_info(dev, dev->gc_block_finder); in yaffs_find_gc_block()
2728 pages_used < dev->param.chunks_per_block && in yaffs_find_gc_block()
2729 (dev->gc_dirtiest < 1 || in yaffs_find_gc_block()
2730 pages_used < dev->gc_pages_in_use) && in yaffs_find_gc_block()
2731 yaffs_block_ok_for_gc(dev, bi)) { in yaffs_find_gc_block()
2732 dev->gc_dirtiest = dev->gc_block_finder; in yaffs_find_gc_block()
2733 dev->gc_pages_in_use = pages_used; in yaffs_find_gc_block()
2737 if (dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold) in yaffs_find_gc_block()
2738 selected = dev->gc_dirtiest; in yaffs_find_gc_block()
2746 if (!selected && dev->param.is_yaffs2 && in yaffs_find_gc_block()
2747 dev->gc_not_done >= (background ? 10 : 20)) { in yaffs_find_gc_block()
2748 yaffs2_find_oldest_dirty_seq(dev); in yaffs_find_gc_block()
2749 if (dev->oldest_dirty_block > 0) { in yaffs_find_gc_block()
2750 selected = dev->oldest_dirty_block; in yaffs_find_gc_block()
2751 dev->gc_dirtiest = selected; in yaffs_find_gc_block()
2752 dev->oldest_dirty_gc_count++; in yaffs_find_gc_block()
2753 bi = yaffs_get_block_info(dev, selected); in yaffs_find_gc_block()
2754 dev->gc_pages_in_use = in yaffs_find_gc_block()
2757 dev->gc_not_done = 0; in yaffs_find_gc_block()
2765 dev->param.chunks_per_block - dev->gc_pages_in_use, in yaffs_find_gc_block()
2768 dev->n_gc_blocks++; in yaffs_find_gc_block()
2770 dev->bg_gcs++; in yaffs_find_gc_block()
2772 dev->gc_dirtiest = 0; in yaffs_find_gc_block()
2773 dev->gc_pages_in_use = 0; in yaffs_find_gc_block()
2774 dev->gc_not_done = 0; in yaffs_find_gc_block()
2775 if (dev->refresh_skip > 0) in yaffs_find_gc_block()
2776 dev->refresh_skip--; in yaffs_find_gc_block()
2778 dev->gc_not_done++; in yaffs_find_gc_block()
2781 dev->gc_block_finder, dev->gc_not_done, threshold, in yaffs_find_gc_block()
2782 dev->gc_dirtiest, dev->gc_pages_in_use, in yaffs_find_gc_block()
2783 dev->oldest_dirty_block, background ? " bg" : ""); in yaffs_find_gc_block()
2798 static int yaffs_check_gc(struct yaffs_dev *dev, int background) in yaffs_check_gc() argument
2807 if (dev->param.gc_control && (dev->param.gc_control(dev) & 1) == 0) in yaffs_check_gc()
2810 if (dev->gc_disable) in yaffs_check_gc()
2821 checkpt_block_adjust = yaffs_calc_checkpt_blocks_required(dev); in yaffs_check_gc()
2824 dev->param.n_reserved_blocks + checkpt_block_adjust + 1; in yaffs_check_gc()
2826 dev->n_erased_blocks * dev->param.chunks_per_block; in yaffs_check_gc()
2829 if (dev->n_erased_blocks < min_erased) in yaffs_check_gc()
2833 && erased_chunks > (dev->n_free_chunks / 4)) in yaffs_check_gc()
2836 if (dev->gc_skip > 20) in yaffs_check_gc()
2837 dev->gc_skip = 20; in yaffs_check_gc()
2838 if (erased_chunks < dev->n_free_chunks / 2 || in yaffs_check_gc()
2839 dev->gc_skip < 1 || background) in yaffs_check_gc()
2842 dev->gc_skip--; in yaffs_check_gc()
2847 dev->gc_skip = 5; in yaffs_check_gc()
2852 if (dev->gc_block < 1 && !aggressive) { in yaffs_check_gc()
2853 dev->gc_block = yaffs2_find_refresh_block(dev); in yaffs_check_gc()
2854 dev->gc_chunk = 0; in yaffs_check_gc()
2855 dev->n_clean_ups = 0; in yaffs_check_gc()
2857 if (dev->gc_block < 1) { in yaffs_check_gc()
2858 dev->gc_block = in yaffs_check_gc()
2859 yaffs_find_gc_block(dev, aggressive, background); in yaffs_check_gc()
2860 dev->gc_chunk = 0; in yaffs_check_gc()
2861 dev->n_clean_ups = 0; in yaffs_check_gc()
2864 if (dev->gc_block > 0) { in yaffs_check_gc()
2865 dev->all_gcs++; in yaffs_check_gc()
2867 dev->passive_gc_count++; in yaffs_check_gc()
2871 dev->n_erased_blocks, aggressive); in yaffs_check_gc()
2873 gc_ok = yaffs_gc_block(dev, dev->gc_block, aggressive); in yaffs_check_gc()
2876 if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && in yaffs_check_gc()
2877 dev->gc_block > 0) { in yaffs_check_gc()
2880 dev->n_erased_blocks, max_tries, in yaffs_check_gc()
2881 dev->gc_block); in yaffs_check_gc()
2883 } while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) && in yaffs_check_gc()
2884 (dev->gc_block > 0) && (max_tries < 2)); in yaffs_check_gc()
2894 int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency) in yaffs_bg_gc() argument
2896 int erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block; in yaffs_bg_gc()
2900 yaffs_check_gc(dev, 1); in yaffs_bg_gc()
2901 return erased_chunks > dev->n_free_chunks / 2; in yaffs_bg_gc()
2924 void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, in yaffs_chunk_del() argument
2935 dev->n_deletions++; in yaffs_chunk_del()
2936 block = chunk_id / dev->param.chunks_per_block; in yaffs_chunk_del()
2937 page = chunk_id % dev->param.chunks_per_block; in yaffs_chunk_del()
2939 if (!yaffs_check_chunk_bit(dev, block, page)) in yaffs_chunk_del()
2943 bi = yaffs_get_block_info(dev, block); in yaffs_chunk_del()
2945 yaffs2_update_oldest_dirty_seq(dev, block, bi); in yaffs_chunk_del()
2951 if (!dev->param.is_yaffs2 && mark_flash && in yaffs_chunk_del()
2956 yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags); in yaffs_chunk_del()
2957 yaffs_handle_chunk_update(dev, chunk_id, &tags); in yaffs_chunk_del()
2959 dev->n_unmarked_deletions++; in yaffs_chunk_del()
2969 dev->n_free_chunks++; in yaffs_chunk_del()
2970 yaffs_clear_chunk_bit(dev, block, page); in yaffs_chunk_del()
2977 yaffs_block_became_dirty(dev, block); in yaffs_chunk_del()
2994 struct yaffs_dev *dev = in->my_dev; in yaffs_wr_data_obj() local
2996 yaffs_check_gc(dev, 0); in yaffs_wr_data_obj()
3016 if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) { in yaffs_wr_data_obj()
3024 yaffs_write_new_chunk(dev, buffer, &new_tags, use_reserve); in yaffs_wr_data_obj()
3030 yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); in yaffs_wr_data_obj()
3067 struct yaffs_dev *dev = obj->my_dev; in yaffs_apply_xattrib_mod() local
3068 int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); in yaffs_apply_xattrib_mod()
3091 struct yaffs_dev *dev = obj->my_dev; in yaffs_do_xattrib_fetch() local
3093 int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); in yaffs_do_xattrib_fetch()
3110 buffer = (char *)yaffs_get_temp_buffer(dev); in yaffs_do_xattrib_fetch()
3115 yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, (u8 *) buffer, &tags); in yaffs_do_xattrib_fetch()
3132 yaffs_release_temp_buffer(dev, (u8 *) buffer); in yaffs_do_xattrib_fetch()
3162 struct yaffs_dev *dev; in yaffs_check_obj_details_loaded() local
3168 dev = in->my_dev; in yaffs_check_obj_details_loaded()
3170 buf = yaffs_get_temp_buffer(dev); in yaffs_check_obj_details_loaded()
3172 yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags); in yaffs_check_obj_details_loaded()
3183 yaffs_release_temp_buffer(dev, buf); in yaffs_check_obj_details_loaded()
3186 static void yaffs_load_name_from_oh(struct yaffs_dev *dev, YCHAR *name, in yaffs_load_name_from_oh() argument
3190 if (dev->param.auto_unicode) { in yaffs_load_name_from_oh()
3213 static void yaffs_load_oh_from_name(struct yaffs_dev *dev, YCHAR *oh_name, in yaffs_load_oh_from_name() argument
3220 if (dev->param.auto_unicode) { in yaffs_load_oh_from_name()
3263 struct yaffs_dev *dev = in->my_dev; in yaffs_update_oh() local
3277 if (in->fake && in != dev->root_dir && !force && !xmod) in yaffs_update_oh()
3280 yaffs_check_gc(dev, 0); in yaffs_update_oh()
3289 yaffs_rd_chunk_tags_nand(dev, prev_chunk_id, in yaffs_update_oh()
3296 memset(buffer, 0xff, dev->data_bytes_per_chunk); in yaffs_update_oh()
3312 yaffs_load_oh_from_name(dev, oh->name, name); in yaffs_update_oh()
3372 yaffs_write_new_chunk(dev, buffer, &new_tags, in yaffs_update_oh()
3376 yaffs_release_temp_buffer(dev, buffer); in yaffs_update_oh()
3384 yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); in yaffs_update_oh()
3420 struct yaffs_dev *dev; in yaffs_file_rd() local
3422 dev = in->my_dev; in yaffs_file_rd()
3425 yaffs_addr_to_chunk(dev, offset, &chunk, &start); in yaffs_file_rd()
3431 if ((start + n) < dev->data_bytes_per_chunk) in yaffs_file_rd()
3434 n_copy = dev->data_bytes_per_chunk - start; in yaffs_file_rd()
3442 if (cache || n_copy != dev->data_bytes_per_chunk || in yaffs_file_rd()
3443 dev->param.inband_tags) { in yaffs_file_rd()
3444 if (dev->param.n_caches > 0) { in yaffs_file_rd()
3461 yaffs_use_cache(dev, cache, 0); in yaffs_file_rd()
3472 yaffs_get_temp_buffer(dev); in yaffs_file_rd()
3477 yaffs_release_temp_buffer(dev, local_buffer); in yaffs_file_rd()
3505 struct yaffs_dev *dev; in yaffs_do_file_wr() local
3507 dev = in->my_dev; in yaffs_do_file_wr()
3510 yaffs_addr_to_chunk(dev, offset, &chunk, &start); in yaffs_do_file_wr()
3513 dev->data_bytes_per_chunk + start != offset || in yaffs_do_file_wr()
3514 start >= dev->data_bytes_per_chunk) { in yaffs_do_file_wr()
3525 if ((start + n) < dev->data_bytes_per_chunk) { in yaffs_do_file_wr()
3535 dev->data_bytes_per_chunk); in yaffs_do_file_wr()
3544 if (n_bytes_read > dev->data_bytes_per_chunk) in yaffs_do_file_wr()
3545 n_bytes_read = dev->data_bytes_per_chunk; in yaffs_do_file_wr()
3552 n_writeback > dev->data_bytes_per_chunk) in yaffs_do_file_wr()
3556 n_copy = dev->data_bytes_per_chunk - start; in yaffs_do_file_wr()
3557 n_writeback = dev->data_bytes_per_chunk; in yaffs_do_file_wr()
3560 if (n_copy != dev->data_bytes_per_chunk || in yaffs_do_file_wr()
3561 dev->param.inband_tags) { in yaffs_do_file_wr()
3566 if (dev->param.n_caches > 0) { in yaffs_do_file_wr()
3574 yaffs_check_alloc_available(dev, 1)) { in yaffs_do_file_wr()
3575 cache = yaffs_grab_chunk_cache(dev); in yaffs_do_file_wr()
3584 !yaffs_check_alloc_available(dev, in yaffs_do_file_wr()
3594 yaffs_use_cache(dev, cache, 1); in yaffs_do_file_wr()
3621 u8 *local_buffer = yaffs_get_temp_buffer(dev); in yaffs_do_file_wr()
3631 yaffs_release_temp_buffer(dev, local_buffer); in yaffs_do_file_wr()
3638 dev->data_bytes_per_chunk, 0); in yaffs_do_file_wr()
3674 struct yaffs_dev *dev = in->my_dev; in yaffs_prune_chunks() local
3683 yaffs_addr_to_chunk(dev, old_size - 1, &last_del, &dummy); in yaffs_prune_chunks()
3687 yaffs_addr_to_chunk(dev, new_size + dev->data_bytes_per_chunk - 1, in yaffs_prune_chunks()
3707 (dev->internal_start_block * dev->param.chunks_per_block) || in yaffs_prune_chunks()
3709 ((dev->internal_end_block + 1) * in yaffs_prune_chunks()
3710 dev->param.chunks_per_block)) { in yaffs_prune_chunks()
3716 yaffs_chunk_del(dev, chunk_id, 1, __LINE__); in yaffs_prune_chunks()
3725 struct yaffs_dev *dev = obj->my_dev; in yaffs_resize_file_down() local
3727 yaffs_addr_to_chunk(dev, new_size, &new_full, &new_partial); in yaffs_resize_file_down()
3733 u8 *local_buffer = yaffs_get_temp_buffer(dev); in yaffs_resize_file_down()
3738 dev->data_bytes_per_chunk - new_partial); in yaffs_resize_file_down()
3743 yaffs_release_temp_buffer(dev, local_buffer); in yaffs_resize_file_down()
3748 yaffs_prune_tree(dev, &obj->variant.file_variant); in yaffs_resize_file_down()
3753 struct yaffs_dev *dev = in->my_dev; in yaffs_resize_file() local
3759 yaffs_check_gc(dev, 0); in yaffs_resize_file()
3815 struct yaffs_dev *dev = in->my_dev; in yaffs_unlink_file_if_needed() local
3829 if (dev->param.disable_soft_del || dev->param.is_yaffs2) in yaffs_unlink_file_if_needed()
3844 struct yaffs_dev *dev = in->my_dev; in yaffs_del_file() local
3846 if (dev->param.disable_soft_del || dev->param.is_yaffs2) in yaffs_del_file()
4046 struct yaffs_dev *dev; in yaffs_rename_obj() local
4057 dev = old_dir->my_dev; in yaffs_rename_obj()
4095 dev->gc_disable = 1; in yaffs_rename_obj()
4100 dev->gc_disable = 0; in yaffs_rename_obj()
4116 void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, in yaffs_handle_shadowed_obj() argument
4125 obj = yaffs_find_by_number(dev, obj_id); in yaffs_handle_shadowed_obj()
4135 yaffs_find_or_create_by_number(dev, obj_id, YAFFS_OBJECT_TYPE_FILE); in yaffs_handle_shadowed_obj()
4139 yaffs_add_obj_to_dir(dev->unlinked_dir, obj); in yaffs_handle_shadowed_obj()
4144 void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list) in yaffs_link_fixup() argument
4153 in = yaffs_find_by_number(dev, in yaffs_link_fixup()
4170 static void yaffs_strip_deleted_objs(struct yaffs_dev *dev) in yaffs_strip_deleted_objs() argument
4179 if (dev->read_only) in yaffs_strip_deleted_objs()
4184 &dev->unlinked_dir->variant.dir_variant.children) { in yaffs_strip_deleted_objs()
4189 list_for_each_safe(i, n, &dev->del_dir->variant.dir_variant.children) { in yaffs_strip_deleted_objs()
4213 static int yaffs_has_null_parent(struct yaffs_dev *dev, struct yaffs_obj *obj) in yaffs_has_null_parent() argument
4215 return (obj == dev->del_dir || in yaffs_has_null_parent()
4216 obj == dev->unlinked_dir || obj == dev->root_dir); in yaffs_has_null_parent()
4219 static void yaffs_fix_hanging_objs(struct yaffs_dev *dev) in yaffs_fix_hanging_objs() argument
4229 if (dev->read_only) in yaffs_fix_hanging_objs()
4238 list_for_each_safe(lh, n, &dev->obj_bucket[i].list) { in yaffs_fix_hanging_objs()
4242 if (yaffs_has_null_parent(dev, obj)) { in yaffs_fix_hanging_objs()
4249 } else if (yaffs_has_null_parent(dev, parent)) { in yaffs_fix_hanging_objs()
4259 while (parent != dev->root_dir && in yaffs_fix_hanging_objs()
4267 if (parent != dev->root_dir) in yaffs_fix_hanging_objs()
4274 yaffs_add_obj_to_dir(dev->lost_n_found, obj); in yaffs_fix_hanging_objs()
4303 static void yaffs_empty_l_n_f(struct yaffs_dev *dev) in yaffs_empty_l_n_f() argument
4305 yaffs_del_dir_contents(dev->lost_n_found); in yaffs_empty_l_n_f()
4530 static int yaffs_check_dev_fns(const struct yaffs_dev *dev) in yaffs_check_dev_fns() argument
4533 if (!dev->param.erase_fn || !dev->param.initialise_flash_fn) in yaffs_check_dev_fns()
4537 if (dev->param.write_chunk_tags_fn && in yaffs_check_dev_fns()
4538 dev->param.read_chunk_tags_fn && in yaffs_check_dev_fns()
4539 !dev->param.write_chunk_fn && in yaffs_check_dev_fns()
4540 !dev->param.read_chunk_fn && in yaffs_check_dev_fns()
4541 dev->param.bad_block_fn && dev->param.query_block_fn) in yaffs_check_dev_fns()
4545 if (!dev->param.is_yaffs2 && in yaffs_check_dev_fns()
4546 !dev->param.write_chunk_tags_fn && in yaffs_check_dev_fns()
4547 !dev->param.read_chunk_tags_fn && in yaffs_check_dev_fns()
4548 dev->param.write_chunk_fn && in yaffs_check_dev_fns()
4549 dev->param.read_chunk_fn && in yaffs_check_dev_fns()
4550 !dev->param.bad_block_fn && !dev->param.query_block_fn) in yaffs_check_dev_fns()
4556 static int yaffs_create_initial_dir(struct yaffs_dev *dev) in yaffs_create_initial_dir() argument
4559 dev->lost_n_found = dev->root_dir = NULL; in yaffs_create_initial_dir()
4560 dev->unlinked_dir = dev->del_dir = NULL; in yaffs_create_initial_dir()
4561 dev->unlinked_dir = in yaffs_create_initial_dir()
4562 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); in yaffs_create_initial_dir()
4563 dev->del_dir = in yaffs_create_initial_dir()
4564 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); in yaffs_create_initial_dir()
4565 dev->root_dir = in yaffs_create_initial_dir()
4566 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT, in yaffs_create_initial_dir()
4568 dev->lost_n_found = in yaffs_create_initial_dir()
4569 yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND, in yaffs_create_initial_dir()
4572 if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir in yaffs_create_initial_dir()
4573 && dev->del_dir) { in yaffs_create_initial_dir()
4574 yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found); in yaffs_create_initial_dir()
4580 int yaffs_guts_initialise(struct yaffs_dev *dev) in yaffs_guts_initialise() argument
4590 if (!dev) { in yaffs_guts_initialise()
4597 if (dev->is_mounted) { in yaffs_guts_initialise()
4602 dev->internal_start_block = dev->param.start_block; in yaffs_guts_initialise()
4603 dev->internal_end_block = dev->param.end_block; in yaffs_guts_initialise()
4604 dev->block_offset = 0; in yaffs_guts_initialise()
4605 dev->chunk_offset = 0; in yaffs_guts_initialise()
4606 dev->n_free_chunks = 0; in yaffs_guts_initialise()
4608 dev->gc_block = 0; in yaffs_guts_initialise()
4610 if (dev->param.start_block == 0) { in yaffs_guts_initialise()
4611 dev->internal_start_block = dev->param.start_block + 1; in yaffs_guts_initialise()
4612 dev->internal_end_block = dev->param.end_block + 1; in yaffs_guts_initialise()
4613 dev->block_offset = 1; in yaffs_guts_initialise()
4614 dev->chunk_offset = dev->param.chunks_per_block; in yaffs_guts_initialise()
4619 if ((!dev->param.inband_tags && dev->param.is_yaffs2 && in yaffs_guts_initialise()
4620 dev->param.total_bytes_per_chunk < 1024) || in yaffs_guts_initialise()
4621 (!dev->param.is_yaffs2 && in yaffs_guts_initialise()
4622 dev->param.total_bytes_per_chunk < 512) || in yaffs_guts_initialise()
4623 (dev->param.inband_tags && !dev->param.is_yaffs2) || in yaffs_guts_initialise()
4624 dev->param.chunks_per_block < 2 || in yaffs_guts_initialise()
4625 dev->param.n_reserved_blocks < 2 || in yaffs_guts_initialise()
4626 dev->internal_start_block <= 0 || in yaffs_guts_initialise()
4627 dev->internal_end_block <= 0 || in yaffs_guts_initialise()
4628 dev->internal_end_block <= in yaffs_guts_initialise()
4629 (dev->internal_start_block + dev->param.n_reserved_blocks + 2) in yaffs_guts_initialise()
4634 dev->param.total_bytes_per_chunk, in yaffs_guts_initialise()
4635 dev->param.is_yaffs2 ? "2" : "", in yaffs_guts_initialise()
4636 dev->param.inband_tags); in yaffs_guts_initialise()
4640 if (yaffs_init_nand(dev) != YAFFS_OK) { in yaffs_guts_initialise()
4646 if (dev->param.inband_tags) in yaffs_guts_initialise()
4647 dev->data_bytes_per_chunk = in yaffs_guts_initialise()
4648 dev->param.total_bytes_per_chunk - in yaffs_guts_initialise()
4651 dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk; in yaffs_guts_initialise()
4654 if (!yaffs_check_dev_fns(dev)) { in yaffs_guts_initialise()
4664 dev->is_mounted = 1; in yaffs_guts_initialise()
4671 x = dev->data_bytes_per_chunk; in yaffs_guts_initialise()
4673 dev->chunk_shift = calc_shifts(x); in yaffs_guts_initialise()
4674 x >>= dev->chunk_shift; in yaffs_guts_initialise()
4675 dev->chunk_div = x; in yaffs_guts_initialise()
4677 dev->chunk_mask = (1 << dev->chunk_shift) - 1; in yaffs_guts_initialise()
4684 x = dev->param.chunks_per_block * (dev->internal_end_block + 1); in yaffs_guts_initialise()
4689 if (!dev->param.wide_tnodes_disabled) { in yaffs_guts_initialise()
4694 dev->tnode_width = 16; in yaffs_guts_initialise()
4696 dev->tnode_width = bits; in yaffs_guts_initialise()
4698 dev->tnode_width = 16; in yaffs_guts_initialise()
4701 dev->tnode_mask = (1 << dev->tnode_width) - 1; in yaffs_guts_initialise()
4709 if (bits <= dev->tnode_width) in yaffs_guts_initialise()
4710 dev->chunk_grp_bits = 0; in yaffs_guts_initialise()
4712 dev->chunk_grp_bits = bits - dev->tnode_width; in yaffs_guts_initialise()
4714 dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8; in yaffs_guts_initialise()
4715 if (dev->tnode_size < sizeof(struct yaffs_tnode)) in yaffs_guts_initialise()
4716 dev->tnode_size = sizeof(struct yaffs_tnode); in yaffs_guts_initialise()
4718 dev->chunk_grp_size = 1 << dev->chunk_grp_bits; in yaffs_guts_initialise()
4720 if (dev->param.chunks_per_block < dev->chunk_grp_size) { in yaffs_guts_initialise()
4733 dev->all_gcs = 0; in yaffs_guts_initialise()
4734 dev->passive_gc_count = 0; in yaffs_guts_initialise()
4735 dev->oldest_dirty_gc_count = 0; in yaffs_guts_initialise()
4736 dev->bg_gcs = 0; in yaffs_guts_initialise()
4737 dev->gc_block_finder = 0; in yaffs_guts_initialise()
4738 dev->buffered_block = -1; in yaffs_guts_initialise()
4739 dev->doing_buffered_block_rewrite = 0; in yaffs_guts_initialise()
4740 dev->n_deleted_files = 0; in yaffs_guts_initialise()
4741 dev->n_bg_deletions = 0; in yaffs_guts_initialise()
4742 dev->n_unlinked_files = 0; in yaffs_guts_initialise()
4743 dev->n_ecc_fixed = 0; in yaffs_guts_initialise()
4744 dev->n_ecc_unfixed = 0; in yaffs_guts_initialise()
4745 dev->n_tags_ecc_fixed = 0; in yaffs_guts_initialise()
4746 dev->n_tags_ecc_unfixed = 0; in yaffs_guts_initialise()
4747 dev->n_erase_failures = 0; in yaffs_guts_initialise()
4748 dev->n_erased_blocks = 0; in yaffs_guts_initialise()
4749 dev->gc_disable = 0; in yaffs_guts_initialise()
4750 dev->has_pending_prioritised_gc = 1; in yaffs_guts_initialise()
4752 INIT_LIST_HEAD(&dev->dirty_dirs); in yaffs_guts_initialise()
4753 dev->oldest_dirty_seq = 0; in yaffs_guts_initialise()
4754 dev->oldest_dirty_block = 0; in yaffs_guts_initialise()
4757 if (!yaffs_init_tmp_buffers(dev)) in yaffs_guts_initialise()
4760 dev->cache = NULL; in yaffs_guts_initialise()
4761 dev->gc_cleanup_list = NULL; in yaffs_guts_initialise()
4763 if (!init_failed && dev->param.n_caches > 0) { in yaffs_guts_initialise()
4767 dev->param.n_caches * sizeof(struct yaffs_cache); in yaffs_guts_initialise()
4769 if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES) in yaffs_guts_initialise()
4770 dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES; in yaffs_guts_initialise()
4772 dev->cache = kmalloc(cache_bytes, GFP_NOFS); in yaffs_guts_initialise()
4774 buf = (u8 *) dev->cache; in yaffs_guts_initialise()
4776 if (dev->cache) in yaffs_guts_initialise()
4777 memset(dev->cache, 0, cache_bytes); in yaffs_guts_initialise()
4779 for (i = 0; i < dev->param.n_caches && buf; i++) { in yaffs_guts_initialise()
4780 dev->cache[i].object = NULL; in yaffs_guts_initialise()
4781 dev->cache[i].last_use = 0; in yaffs_guts_initialise()
4782 dev->cache[i].dirty = 0; in yaffs_guts_initialise()
4783 dev->cache[i].data = buf = in yaffs_guts_initialise()
4784 kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); in yaffs_guts_initialise()
4789 dev->cache_last_use = 0; in yaffs_guts_initialise()
4792 dev->cache_hits = 0; in yaffs_guts_initialise()
4795 dev->gc_cleanup_list = in yaffs_guts_initialise()
4796 kmalloc(dev->param.chunks_per_block * sizeof(u32), in yaffs_guts_initialise()
4798 if (!dev->gc_cleanup_list) in yaffs_guts_initialise()
4802 if (dev->param.is_yaffs2) in yaffs_guts_initialise()
4803 dev->param.use_header_file_size = 1; in yaffs_guts_initialise()
4805 if (!init_failed && !yaffs_init_blocks(dev)) in yaffs_guts_initialise()
4808 yaffs_init_tnodes_and_objs(dev); in yaffs_guts_initialise()
4810 if (!init_failed && !yaffs_create_initial_dir(dev)) in yaffs_guts_initialise()
4813 if (!init_failed && dev->param.is_yaffs2 && in yaffs_guts_initialise()
4814 !dev->param.disable_summary && in yaffs_guts_initialise()
4815 !yaffs_summary_init(dev)) in yaffs_guts_initialise()
4820 if (dev->param.is_yaffs2) { in yaffs_guts_initialise()
4821 if (yaffs2_checkpt_restore(dev)) { in yaffs_guts_initialise()
4822 yaffs_check_obj_details_loaded(dev->root_dir); in yaffs_guts_initialise()
4832 yaffs_deinit_blocks(dev); in yaffs_guts_initialise()
4834 yaffs_deinit_tnodes_and_objs(dev); in yaffs_guts_initialise()
4836 dev->n_erased_blocks = 0; in yaffs_guts_initialise()
4837 dev->n_free_chunks = 0; in yaffs_guts_initialise()
4838 dev->alloc_block = -1; in yaffs_guts_initialise()
4839 dev->alloc_page = -1; in yaffs_guts_initialise()
4840 dev->n_deleted_files = 0; in yaffs_guts_initialise()
4841 dev->n_unlinked_files = 0; in yaffs_guts_initialise()
4842 dev->n_bg_deletions = 0; in yaffs_guts_initialise()
4844 if (!init_failed && !yaffs_init_blocks(dev)) in yaffs_guts_initialise()
4847 yaffs_init_tnodes_and_objs(dev); in yaffs_guts_initialise()
4850 && !yaffs_create_initial_dir(dev)) in yaffs_guts_initialise()
4853 if (!init_failed && !yaffs2_scan_backwards(dev)) in yaffs_guts_initialise()
4856 } else if (!yaffs1_scan(dev)) { in yaffs_guts_initialise()
4860 yaffs_strip_deleted_objs(dev); in yaffs_guts_initialise()
4861 yaffs_fix_hanging_objs(dev); in yaffs_guts_initialise()
4862 if (dev->param.empty_lost_n_found) in yaffs_guts_initialise()
4863 yaffs_empty_l_n_f(dev); in yaffs_guts_initialise()
4871 yaffs_deinitialise(dev); in yaffs_guts_initialise()
4876 dev->n_page_reads = 0; in yaffs_guts_initialise()
4877 dev->n_page_writes = 0; in yaffs_guts_initialise()
4878 dev->n_erasures = 0; in yaffs_guts_initialise()
4879 dev->n_gc_copies = 0; in yaffs_guts_initialise()
4880 dev->n_retried_writes = 0; in yaffs_guts_initialise()
4882 dev->n_retired_blocks = 0; in yaffs_guts_initialise()
4884 yaffs_verify_free_chunks(dev); in yaffs_guts_initialise()
4885 yaffs_verify_blocks(dev); in yaffs_guts_initialise()
4888 if (!dev->is_checkpointed && dev->blocks_in_checkpt > 0) in yaffs_guts_initialise()
4889 yaffs2_checkpt_invalidate(dev); in yaffs_guts_initialise()
4896 void yaffs_deinitialise(struct yaffs_dev *dev) in yaffs_deinitialise() argument
4898 if (dev->is_mounted) { in yaffs_deinitialise()
4901 yaffs_deinit_blocks(dev); in yaffs_deinitialise()
4902 yaffs_deinit_tnodes_and_objs(dev); in yaffs_deinitialise()
4903 yaffs_summary_deinit(dev); in yaffs_deinitialise()
4905 if (dev->param.n_caches > 0 && dev->cache) { in yaffs_deinitialise()
4907 for (i = 0; i < dev->param.n_caches; i++) { in yaffs_deinitialise()
4908 kfree(dev->cache[i].data); in yaffs_deinitialise()
4909 dev->cache[i].data = NULL; in yaffs_deinitialise()
4912 kfree(dev->cache); in yaffs_deinitialise()
4913 dev->cache = NULL; in yaffs_deinitialise()
4916 kfree(dev->gc_cleanup_list); in yaffs_deinitialise()
4919 kfree(dev->temp_buffer[i].buffer); in yaffs_deinitialise()
4921 dev->is_mounted = 0; in yaffs_deinitialise()
4923 if (dev->param.deinitialise_flash_fn) in yaffs_deinitialise()
4924 dev->param.deinitialise_flash_fn(dev); in yaffs_deinitialise()
4928 int yaffs_count_free_chunks(struct yaffs_dev *dev) in yaffs_count_free_chunks() argument
4934 blk = dev->block_info; in yaffs_count_free_chunks()
4935 for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { in yaffs_count_free_chunks()
4942 (dev->param.chunks_per_block - blk->pages_in_use + in yaffs_count_free_chunks()
4953 int yaffs_get_n_free_chunks(struct yaffs_dev *dev) in yaffs_get_n_free_chunks() argument
4961 n_free = dev->n_free_chunks; in yaffs_get_n_free_chunks()
4962 n_free += dev->n_deleted_files; in yaffs_get_n_free_chunks()
4966 for (n_dirty_caches = 0, i = 0; i < dev->param.n_caches; i++) { in yaffs_get_n_free_chunks()
4967 if (dev->cache[i].dirty) in yaffs_get_n_free_chunks()
4974 ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block); in yaffs_get_n_free_chunks()
4977 blocks_for_checkpt = yaffs_calc_checkpt_blocks_required(dev); in yaffs_get_n_free_chunks()
4979 n_free -= (blocks_for_checkpt * dev->param.chunks_per_block); in yaffs_get_n_free_chunks()