Btrfs: merge leaves before split

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/TODO b/fs/btrfs/TODO
index 52d2a7a..ad29267 100644 (file)
--- a/fs/btrfs/TODO
+++ b/fs/btrfs/TODO
@@ -1,10 +1,8 @@
 * cleanup, add more error checking, get rid of BUG_ONs
-* endian fixes
 * Make IO functions look more like the page cache
 * Fix ENOSPC handling
 * make blocksize a mkfs parameter instead of #define
 * make a real mkfs and superblock
-* Add shadowing and transactions
 * Do checksumming
 * Define FS objects in terms of different item types
 * Add block mapping tree (simple dm layer)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index bbb6322..dc62018 100644 (file)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1043,6 +1043,15 @@ static int split_leaf(struct btrfs_root *root, struct btrfs_path *path,
        int ret;
        int wret;
 
+       wret = push_leaf_left(root, path, data_size);
+       if (wret < 0)
+               return wret;
+       if (wret) {
+               wret = push_leaf_right(root, path, data_size);
+               if (wret < 0)
+                       return wret;
+       }
+
        l_buf = path->nodes[0];
        l = &l_buf->leaf;