X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/cc572d714646b424d70facff4feb6d36480e8f7c..bc49a7967325c523a7c25d48df30ae718a66aa63:/services/api/app/controllers/arvados/v1/containers_controller.rb

diff --git a/services/api/app/controllers/arvados/v1/containers_controller.rb b/services/api/app/controllers/arvados/v1/containers_controller.rb
index fa29dbd813..25cb0037a2 100644
--- a/services/api/app/controllers/arvados/v1/containers_controller.rb
+++ b/services/api/app/controllers/arvados/v1/containers_controller.rb
@@ -21,11 +21,7 @@ class Arvados::V1::ContainersController < ApplicationController
   end
 
   def update
-    # container updates can trigger container request lookups, which
-    # can deadlock if we don't lock the container_requests table
-    # first.
-    @object.transaction do
-      ActiveRecord::Base.connection.execute('LOCK container_requests, containers IN EXCLUSIVE MODE')
+    @object.with_lock do
       @object.reload
       super
     end