diff options
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 5094573e8b45..5557d19ea81c 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -913,6 +913,16 @@ void wq_worker_sleeping(struct task_struct *task) raw_spin_lock_irq(&pool->lock); /* + * Recheck in case unbind_workers() preempted us. We don't + * want to decrement nr_running after the worker is unbound + * and nr_running has been reset. + */ + if (worker->flags & WORKER_NOT_RUNNING) { + raw_spin_unlock_irq(&pool->lock); + return; + } + + /* * The counterpart of the following dec_and_test, implied mb, * worklist not empty test sequence is in insert_work(). * Please read comment there. |