19 					     sizeof(struct extent_map), 0, 0, NULL);  in btrfs_extent_map_init()
45 struct extent_map *btrfs_alloc_extent_map(void)  in btrfs_alloc_extent_map()
47 	struct extent_map *em;  in btrfs_alloc_extent_map()
61 void btrfs_free_extent_map(struct extent_map *em)  in btrfs_free_extent_map()
80 static void remove_em(struct btrfs_inode *inode, struct extent_map *em)  in remove_em()
91 static int tree_insert(struct rb_root *root, struct extent_map *em)  in tree_insert()
95 	struct extent_map *entry = NULL;  in tree_insert()
101 		entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
114 		entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
121 	entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
124 		entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
145 	struct extent_map *entry;  in tree_search()
146 	struct extent_map *prev_entry = NULL;  in tree_search()
151 		entry = rb_entry(n, struct extent_map, rb_node);  in tree_search()
166 		prev_entry = rb_entry(prev, struct extent_map, rb_node);  in tree_search()
179 	prev_entry = rb_entry(prev, struct extent_map, rb_node);  in tree_search()
182 		prev_entry = rb_entry(prev, struct extent_map, rb_node);  in tree_search()
189 static inline u64 extent_map_block_len(const struct extent_map *em)  in extent_map_block_len()
196 static inline u64 extent_map_block_end(const struct extent_map *em)  in extent_map_block_end()
207 static bool can_merge_extent_map(const struct extent_map *em)  in can_merge_extent_map()
231 static bool mergeable_maps(const struct extent_map *prev, const struct extent_map *next)  in mergeable_maps()
265 static void merge_ondisk_extents(const struct extent_map *prev, const struct extent_map *next,  in merge_ondisk_extents()
266 				 struct extent_map *merged)  in merge_ondisk_extents()
308 			    struct extent_map *em)  in dump_extent_map()
320 static void validate_extent_map(struct btrfs_fs_info *fs_info, struct extent_map *em)  in validate_extent_map()
354 static void try_merge_map(struct btrfs_inode *inode, struct extent_map *em)  in try_merge_map()
357 	struct extent_map *merge = NULL;  in try_merge_map()
376 		merge = rb_entry_safe(rb, struct extent_map, rb_node);  in try_merge_map()
394 	merge = rb_entry_safe(rb, struct extent_map, rb_node);  in try_merge_map()
429 	struct extent_map *em;  in btrfs_unpin_extent_cache()
464 void btrfs_clear_em_logging(struct btrfs_inode *inode, struct extent_map *em)  in btrfs_clear_em_logging()
474 					struct extent_map *em,  in setup_extent_mapping()
501 			      struct extent_map *em, bool modified)  in add_extent_mapping()
523 static struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree,  in lookup_extent_mapping()
526 	struct extent_map *em;  in lookup_extent_mapping()
539 	em = rb_entry(rb_node, struct extent_map, rb_node);  in lookup_extent_mapping()
560 struct extent_map *btrfs_lookup_extent_mapping(struct extent_map_tree *tree,  in btrfs_lookup_extent_mapping()
578 struct extent_map *btrfs_search_extent_mapping(struct extent_map_tree *tree,  in btrfs_search_extent_mapping()
593 void btrfs_remove_extent_mapping(struct btrfs_inode *inode, struct extent_map *em)  in btrfs_remove_extent_mapping()
607 				   struct extent_map *cur,  in replace_extent_mapping()
608 				   struct extent_map *new,  in replace_extent_mapping()
628 static struct extent_map *next_extent_map(const struct extent_map *em)  in next_extent_map()
635 	return container_of(next, struct extent_map, rb_node);  in next_extent_map()
638 static struct extent_map *prev_extent_map(struct extent_map *em)  in prev_extent_map()
645 	return container_of(prev, struct extent_map, rb_node);  in prev_extent_map()
655 					 struct extent_map *existing,  in merge_extent_mapping()
656 					 struct extent_map *em,  in merge_extent_mapping()
659 	struct extent_map *prev;  in merge_extent_mapping()
660 	struct extent_map *next;  in merge_extent_mapping()
709 			     struct extent_map **em_in, u64 start, u64 len)  in btrfs_add_extent_mapping()
712 	struct extent_map *em = *em_in;  in btrfs_add_extent_mapping()
728 		struct extent_map *existing;  in btrfs_add_extent_mapping()
781 		struct extent_map *em;  in drop_all_extent_maps_fast()
784 		em = rb_entry(node, struct extent_map, rb_node);  in drop_all_extent_maps_fast()
814 	struct extent_map *split;  in btrfs_drop_extent_map_range()
815 	struct extent_map *split2;  in btrfs_drop_extent_map_range()
816 	struct extent_map *em;  in btrfs_drop_extent_map_range()
849 		struct extent_map *next_em = NULL;  in btrfs_drop_extent_map_range()
1014 				   struct extent_map *new_em,  in btrfs_replace_extent_map_range()
1051 	struct extent_map *em;  in btrfs_split_extent_map()
1052 	struct extent_map *split_pre = NULL;  in btrfs_split_extent_map()
1053 	struct extent_map *split_mid = NULL;  in btrfs_split_extent_map()
1164 		struct extent_map *em;  in btrfs_scan_inode()
1166 		em = rb_entry(node, struct extent_map, rb_node);  in btrfs_scan_inode()