workqueue: free rescuer on destroy_workqueue
wq->rescuer is not freed when wq is destroyed, leads a memory leak then. This patch also remove a redundant line. Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com>
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@ -2782,7 +2782,6 @@ struct workqueue_struct *__alloc_workqueue_key(const char *name,
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if (IS_ERR(rescuer->task))
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goto err;
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wq->rescuer = rescuer;
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rescuer->task->flags |= PF_THREAD_BOUND;
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wake_up_process(rescuer->task);
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}
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@ -2848,6 +2847,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
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if (wq->flags & WQ_RESCUER) {
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kthread_stop(wq->rescuer->task);
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free_mayday_mask(wq->mayday_mask);
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kfree(wq->rescuer);
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}
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free_cwqs(wq);
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