1 files changed, 2 insertions, 1 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index cbb9bb31431d..80a27284dbf1 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -200,7 +200,8 @@ loop:
                  * is now congested.  Back off and let other work structs
                  * run instead
                  */
-                if (pending && bdi_write_congested(bdi)) {
+                if (pending && bdi_write_congested(bdi) &&
+                    fs_info->fs_devices->open_devices > 1) {
                         struct bio *old_head;
 
                         spin_lock(&device->io_lock);