Btrfs: Further reduce the concurrency penalty of defrag and drop_snapshot

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

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index e64ecec3f52e..204337c5ca0f 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -364,6 +364,9 @@ int btrfs_defrag_dirty_roots(struct btrfs_fs_info *info)
                                         break;
                         }
                         root->defrag_running = 0;
+                        radix_tree_tag_clear(&info->fs_roots_radix,
+                                     (unsigned long)root->root_key.objectid,
+                                     BTRFS_ROOT_DEFRAG_TAG);
                 }
         }
         btrfs_end_transaction(trans, tree_root);