Merge branch 'ce-12996-cancel-redundant-pipelines' into 'master'

Backport retries options for cancel_running

See merge request gitlab-org/gitlab-ce!32525

app/models/ci/pipeline.rb

@@ -460,8 +460,8 @@ module Ci
       canceled? && auto_canceled_by_id?
     end
-    def cancel_running
-      retry_optimistic_lock(cancelable_statuses) do |cancelable|
+    def cancel_running(retries: nil)
+      retry_optimistic_lock(cancelable_statuses, retries) do |cancelable|
         cancelable.find_each do |job|
           yield(job) if block_given?
           job.cancel
@@ -469,10 +469,10 @@ module Ci
       end
     end
-    def auto_cancel_running(pipeline)
+    def auto_cancel_running(pipeline, retries: nil)
       update(auto_canceled_by: pipeline)
-      cancel_running do |job|
+      cancel_running(retries: retries) do |job|
         job.auto_canceled_by = pipeline
       end
     end

lib/gitlab/optimistic_locking.rb

@@ -4,7 +4,8 @@ module Gitlab
   module OptimisticLocking
     module_function
-    def retry_lock(subject, retries = 100, &block)
+    def retry_lock(subject, retries = nil, &block)
+      retries ||= 100
       # TODO(Observability): We should be recording details of the number of retries and the duration of the total execution here
       ActiveRecord::Base.transaction do
         yield(subject)