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-rw-r--r--fs/btrfs/ref-cache.h18
1 files changed, 8 insertions, 10 deletions
diff --git a/fs/btrfs/ref-cache.h b/fs/btrfs/ref-cache.h
index 79ecc47110f2..823c049f72f1 100644
--- a/fs/btrfs/ref-cache.h
+++ b/fs/btrfs/ref-cache.h
@@ -15,6 +15,8 @@
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA. 16 * Boston, MA 021110-1307, USA.
17 */ 17 */
18#ifndef __REFCACHE__
19#define __REFCACHE__
18 20
19struct btrfs_extent_info { 21struct btrfs_extent_info {
20 u64 bytenr; 22 u64 bytenr;
@@ -25,7 +27,6 @@ struct btrfs_extent_info {
25 27
26struct btrfs_leaf_ref { 28struct btrfs_leaf_ref {
27 struct rb_node rb_node; 29 struct rb_node rb_node;
28 struct btrfs_key key;
29 int in_tree; 30 int in_tree;
30 atomic_t usage; 31 atomic_t usage;
31 32
@@ -33,14 +34,9 @@ struct btrfs_leaf_ref {
33 u64 owner; 34 u64 owner;
34 u64 generation; 35 u64 generation;
35 int nritems; 36 int nritems;
36 struct btrfs_extent_info extents[];
37};
38 37
39struct btrfs_leaf_ref_tree { 38 struct list_head list;
40 struct rb_root root; 39 struct btrfs_extent_info extents[];
41 struct btrfs_leaf_ref *last;
42 u64 generation;
43 spinlock_t lock;
44}; 40};
45 41
46static inline size_t btrfs_leaf_ref_size(int nr_extents) 42static inline size_t btrfs_leaf_ref_size(int nr_extents)
@@ -53,7 +49,7 @@ static inline void btrfs_leaf_ref_tree_init(struct btrfs_leaf_ref_tree *tree)
53{ 49{
54 tree->root.rb_node = NULL; 50 tree->root.rb_node = NULL;
55 tree->last = NULL; 51 tree->last = NULL;
56 tree->generation = 0; 52 INIT_LIST_HEAD(&tree->list);
57 spin_lock_init(&tree->lock); 53 spin_lock_init(&tree->lock);
58} 54}
59 55
@@ -66,7 +62,9 @@ void btrfs_leaf_ref_tree_init(struct btrfs_leaf_ref_tree *tree);
66struct btrfs_leaf_ref *btrfs_alloc_leaf_ref(int nr_extents); 62struct btrfs_leaf_ref *btrfs_alloc_leaf_ref(int nr_extents);
67void btrfs_free_leaf_ref(struct btrfs_leaf_ref *ref); 63void btrfs_free_leaf_ref(struct btrfs_leaf_ref *ref);
68struct btrfs_leaf_ref *btrfs_lookup_leaf_ref(struct btrfs_root *root, 64struct btrfs_leaf_ref *btrfs_lookup_leaf_ref(struct btrfs_root *root,
69 struct btrfs_key *key); 65 u64 bytenr);
70int btrfs_add_leaf_ref(struct btrfs_root *root, struct btrfs_leaf_ref *ref); 66int btrfs_add_leaf_ref(struct btrfs_root *root, struct btrfs_leaf_ref *ref);
71int btrfs_remove_leaf_refs(struct btrfs_root *root); 67int btrfs_remove_leaf_refs(struct btrfs_root *root);
72int btrfs_remove_leaf_ref(struct btrfs_root *root, struct btrfs_leaf_ref *ref); 68int btrfs_remove_leaf_ref(struct btrfs_root *root, struct btrfs_leaf_ref *ref);
69
70#endif