| /fs/btrfs/ |
| D | extent_map.c | 50 struct extent_map *em; in alloc_extent_map() local
51 em = kmem_cache_zalloc(extent_map_cache, GFP_NOFS); in alloc_extent_map()
52 if (!em) in alloc_extent_map()
54 em->in_tree = 0; in alloc_extent_map()
55 em->flags = 0; in alloc_extent_map()
56 em->compress_type = BTRFS_COMPRESS_NONE; in alloc_extent_map()
57 em->generation = 0; in alloc_extent_map()
58 atomic_set(&em->refs, 1); in alloc_extent_map()
59 INIT_LIST_HEAD(&em->list); in alloc_extent_map()
60 return em; in alloc_extent_map()
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| D | extent_map.h | 47 static inline u64 extent_map_end(struct extent_map *em) in extent_map_end() argument
49 if (em->start + em->len < em->start) in extent_map_end()
51 return em->start + em->len; in extent_map_end()
54 static inline u64 extent_map_block_end(struct extent_map *em) in extent_map_block_end() argument
56 if (em->block_start + em->block_len < em->block_start) in extent_map_block_end()
58 return em->block_start + em->block_len; in extent_map_block_end()
65 struct extent_map *em, int modified);
66 int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em);
69 void free_extent_map(struct extent_map *em);
73 void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em);
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| D | file.c | 546 struct extent_map *em; in btrfs_drop_extent_cache() local
575 em = lookup_extent_mapping(em_tree, start, len); in btrfs_drop_extent_cache()
576 if (!em) { in btrfs_drop_extent_cache()
580 flags = em->flags; in btrfs_drop_extent_cache()
581 gen = em->generation; in btrfs_drop_extent_cache()
582 if (skip_pinned && test_bit(EXTENT_FLAG_PINNED, &em->flags)) { in btrfs_drop_extent_cache()
583 if (testend && em->start + em->len >= start + len) { in btrfs_drop_extent_cache()
584 free_extent_map(em); in btrfs_drop_extent_cache()
588 start = em->start + em->len; in btrfs_drop_extent_cache()
590 len = start + len - (em->start + em->len); in btrfs_drop_extent_cache()
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| D | inode.c | 620 struct extent_map *em; in submit_compressed_extents() local
717 em = alloc_extent_map(); in submit_compressed_extents()
718 if (!em) { in submit_compressed_extents()
722 em->start = async_extent->start; in submit_compressed_extents()
723 em->len = async_extent->ram_size; in submit_compressed_extents()
724 em->orig_start = em->start; in submit_compressed_extents()
725 em->mod_start = em->start; in submit_compressed_extents()
726 em->mod_len = em->len; in submit_compressed_extents()
728 em->block_start = ins.objectid; in submit_compressed_extents()
729 em->block_len = ins.offset; in submit_compressed_extents()
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| D | volumes.c | 2370 struct extent_map *em; in btrfs_relocate_chunk() local
2402 em = lookup_extent_mapping(em_tree, chunk_offset, 1); in btrfs_relocate_chunk()
2405 BUG_ON(!em || em->start > chunk_offset || in btrfs_relocate_chunk()
2406 em->start + em->len < chunk_offset); in btrfs_relocate_chunk()
2407 map = (struct map_lookup *)em->bdev; in btrfs_relocate_chunk()
2424 trace_btrfs_chunk_free(root, map, chunk_offset, em->len); in btrfs_relocate_chunk()
2435 remove_extent_mapping(em_tree, em); in btrfs_relocate_chunk()
2439 em->bdev = NULL; in btrfs_relocate_chunk()
2442 free_extent_map(em); in btrfs_relocate_chunk()
2444 free_extent_map(em); in btrfs_relocate_chunk()
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| D | extent_io.c | 2180 struct extent_map *em; in bio_readpage_error() local
2205 em = lookup_extent_mapping(em_tree, start, failrec->len); in bio_readpage_error()
2206 if (!em) { in bio_readpage_error()
2212 if (em->start > start || em->start + em->len < start) { in bio_readpage_error()
2213 free_extent_map(em); in bio_readpage_error()
2214 em = NULL; in bio_readpage_error()
2218 if (!em) { in bio_readpage_error()
2222 logical = start - em->start; in bio_readpage_error()
2223 logical = em->block_start + logical; in bio_readpage_error()
2224 if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) { in bio_readpage_error()
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| D | compression.c | 452 struct extent_map *em; in add_ra_bio_pages() local
505 em = lookup_extent_mapping(em_tree, last_offset, in add_ra_bio_pages()
509 if (!em || last_offset < em->start || in add_ra_bio_pages()
510 (last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) || in add_ra_bio_pages()
511 (em->block_start >> 9) != cb->orig_bio->bi_sector) { in add_ra_bio_pages()
512 free_extent_map(em); in add_ra_bio_pages()
518 free_extent_map(em); in add_ra_bio_pages()
581 struct extent_map *em; in btrfs_submit_compressed_read() local
591 em = lookup_extent_mapping(em_tree, in btrfs_submit_compressed_read()
595 if (!em) in btrfs_submit_compressed_read()
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| D | tree-log.c | 3269 struct extent_map *em, struct btrfs_path *path) in log_one_extent() argument
3278 u64 mod_start = em->mod_start; in log_one_extent()
3279 u64 mod_len = em->mod_len; in log_one_extent()
3282 u64 extent_offset = em->start - em->orig_start; in log_one_extent()
3288 ret = __btrfs_drop_extents(trans, log, inode, path, em->start, in log_one_extent()
3289 em->start + em->len, NULL, 0); in log_one_extent()
3297 key.offset = em->start; in log_one_extent()
3306 btrfs_set_token_file_extent_generation(leaf, fi, em->generation, in log_one_extent()
3308 if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) { in log_one_extent()
3317 if (em->block_start == 0) in log_one_extent()
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| D | dev-replace.c | 568 struct extent_map *em; in btrfs_dev_replace_update_device_in_mapping_tree() local
575 em = lookup_extent_mapping(em_tree, start, (u64)-1); in btrfs_dev_replace_update_device_in_mapping_tree()
576 if (!em) in btrfs_dev_replace_update_device_in_mapping_tree()
578 map = (struct map_lookup *)em->bdev; in btrfs_dev_replace_update_device_in_mapping_tree()
582 start = em->start + em->len; in btrfs_dev_replace_update_device_in_mapping_tree()
583 free_extent_map(em); in btrfs_dev_replace_update_device_in_mapping_tree()
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| D | ioctl.c | 786 struct extent_map *em = NULL; in check_defrag_in_cache() local
791 em = lookup_extent_mapping(em_tree, offset, PAGE_CACHE_SIZE); in check_defrag_in_cache()
794 if (em) { in check_defrag_in_cache()
795 end = extent_map_end(em); in check_defrag_in_cache()
796 free_extent_map(em); in check_defrag_in_cache()
881 struct extent_map *em; in defrag_lookup_extent() local
889 em = lookup_extent_mapping(em_tree, start, len); in defrag_lookup_extent()
892 if (!em) { in defrag_lookup_extent()
895 em = btrfs_get_extent(inode, NULL, 0, start, len, 0); in defrag_lookup_extent()
898 if (IS_ERR(em)) in defrag_lookup_extent()
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| D | disk-io.c | 203 struct extent_map *em; in btree_get_extent() local
207 em = lookup_extent_mapping(em_tree, start, len); in btree_get_extent()
208 if (em) { in btree_get_extent()
209 em->bdev = in btree_get_extent()
216 em = alloc_extent_map(); in btree_get_extent()
217 if (!em) { in btree_get_extent()
218 em = ERR_PTR(-ENOMEM); in btree_get_extent()
221 em->start = 0; in btree_get_extent()
222 em->len = (u64)-1; in btree_get_extent()
223 em->block_len = (u64)-1; in btree_get_extent()
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| D | relocation.c | 2980 struct extent_map *em; local
2983 em = alloc_extent_map();
2984 if (!em)
2987 em->start = start;
2988 em->len = end + 1 - start;
2989 em->block_len = em->len;
2990 em->block_start = block_start;
2991 em->bdev = root->fs_info->fs_devices->latest_bdev;
2992 set_bit(EXTENT_FLAG_PINNED, &em->flags);
2997 ret = add_extent_mapping(em_tree, em, 0);
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| D | scrub.c | 2560 struct extent_map *em; in scrub_chunk() local
2565 em = lookup_extent_mapping(&map_tree->map_tree, chunk_offset, 1); in scrub_chunk()
2568 if (!em) in scrub_chunk()
2571 map = (struct map_lookup *)em->bdev; in scrub_chunk()
2572 if (em->start != chunk_offset) in scrub_chunk()
2575 if (em->len < length) in scrub_chunk()
2589 free_extent_map(em); in scrub_chunk()
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| /fs/ocfs2/ |
| D | extent_map.c | 62 static void __ocfs2_extent_map_lookup(struct ocfs2_extent_map *em, in __ocfs2_extent_map_lookup() argument
71 list_for_each_entry(emi, &em->em_list, ei_list) { in __ocfs2_extent_map_lookup()
75 list_move(&emi->ei_list, &em->em_list); in __ocfs2_extent_map_lookup()
118 struct ocfs2_extent_map *em = &oi->ip_extent_map; in ocfs2_extent_map_trunc() local
123 list_for_each_entry_safe(emi, n, &em->em_list, ei_list) { in ocfs2_extent_map_trunc()
127 BUG_ON(em->em_num_items == 0); in ocfs2_extent_map_trunc()
128 em->em_num_items--; in ocfs2_extent_map_trunc()
231 struct ocfs2_extent_map *em = &oi->ip_extent_map; in ocfs2_extent_map_insert_rec() local
244 list_for_each_entry(emi, &em->em_list, ei_list) { in ocfs2_extent_map_insert_rec()
246 list_move(&emi->ei_list, &em->em_list); in ocfs2_extent_map_insert_rec()
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