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authorQu Wenruo <wqu@suse.com>2020-03-26 14:11:09 +0800
committerDavid Sterba <dsterba@suse.com>2020-05-25 11:25:19 +0200
commite9a28dc52af31d8af1883afe08e724a303b3c4eb (patch)
tree0967cfb74a693d6805ee3db2552bc329dd37732a /fs/btrfs/backref.h
parent7053544146ac7eb71de6cee1ffda678714f905d8 (diff)
btrfs: rename tree_entry to rb_simple_node and export it
Structure tree_entry provides a very simple rb_tree which only uses bytenr as search index. That tree_entry is used in 3 structures: backref_node, mapping_node and tree_block. Since we're going to make backref_node independnt from relocation, it's a good time to extract the tree_entry into rb_simple_node, and export it into misc.h. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/backref.h')
-rw-r--r--fs/btrfs/backref.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h
index 55f1f56b378e..0d3fb76364c6 100644
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -161,8 +161,10 @@ static inline void btrfs_backref_iter_release(struct btrfs_backref_iter *iter)
* Represent a tree block in the backref cache
*/
struct btrfs_backref_node {
- struct rb_node rb_node;
- u64 bytenr;
+ struct {
+ struct rb_node rb_node;
+ u64 bytenr;
+ }; /* Use rb_simple_node for search/insert */
u64 new_bytenr;
/* Objectid of tree block owner, can be not uptodate */