cwq = get_cwq(gcwq->cpu, wq);
trace_workqueue_queue_work(cpu, cwq, work);
- BUG_ON(!list_empty(&work->entry));
+ if (WARN_ON(!list_empty(&work->entry))) {
+ spin_unlock_irqrestore(&gcwq->lock, flags);
+ return;
+ }
cwq->nr_in_flight[cwq->work_color]++;
work_flags = work_color_to_flags(cwq->work_color);
} else
wake_up_all(&gcwq->trustee_wait);
- /* sanity check nr_running */
- WARN_ON_ONCE(gcwq->nr_workers == gcwq->nr_idle &&
+ /*
+ * Sanity check nr_running. Because trustee releases gcwq->lock
+ * between setting %WORKER_ROGUE and zapping nr_running, the
+ * warning may trigger spuriously. Check iff trustee is idle.
+ */
+ WARN_ON_ONCE(gcwq->trustee_state == TRUSTEE_DONE &&
+ gcwq->nr_workers == gcwq->nr_idle &&
atomic_read(get_gcwq_nr_running(gcwq->cpu)));
}
* lock freed" warnings as well as problems when looking into
* work->lockdep_map, make a copy and use that here.
*/
- struct lockdep_map lockdep_map = work->lockdep_map;
+ struct lockdep_map lockdep_map;
+
+ lockdep_copy_map(&lockdep_map, &work->lockdep_map);
#endif
/*
* A single work shouldn't be executed concurrently by
{
struct wq_barrier barr;
+ lock_map_acquire(&work->lockdep_map);
+ lock_map_release(&work->lockdep_map);
+
if (start_flush_work(work, &barr, true)) {
wait_for_completion(&barr.done);
destroy_work_on_stack(&barr.work);