Btrfs: Further reduce the concurrency penalty of defrag and drop_snapshot

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

1 files changed, 2 insertions, 5 deletions

diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index 15d0a486fb59..7ea66b4aa5c2 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -148,7 +148,6 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
         int level;
         int orig_level;
         int i;
-        int num_runs = 0;
 
         if (root->ref_cows == 0) {
                 goto out;
@@ -200,10 +199,8 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
                         break;
                 if (wret < 0)
                         ret = wret;
-                if (num_runs++ > 8) {
-                        ret = -EAGAIN;
-                        break;
-                }
+                ret = -EAGAIN;
+                break;
         }
         for (i = 0; i <= orig_level; i++) {
                 if (path->nodes[i]) {