Btrfs: Optimize allocations as we need to mix data and metadata into one group
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index 6ef1ba5f..3994795 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -58,6 +58,10 @@
if (root->fs_info->extent_root == root)
is_extent = 1;
+ if (*level == 1 && cache_only && path->nodes[1] &&
+ !btrfs_buffer_defrag(path->nodes[1])) {
+ goto out;
+ }
while(*level > 0) {
WARN_ON(*level < 0);
WARN_ON(*level >= BTRFS_MAX_LEVEL);
@@ -116,7 +120,7 @@
WARN_ON(*level >= BTRFS_MAX_LEVEL);
btrfs_clear_buffer_defrag(path->nodes[*level]);
-
+out:
free_extent_buffer(path->nodes[*level]);
path->nodes[*level] = NULL;
*level += 1;