From fd1c4bc6e9b34a5e4fe7a3130a49380ef9d7037c Mon Sep 17 00:00:00 2001 From: Hillf Danton Date: Tue, 24 Dec 2019 09:14:29 -0700 Subject: [PATCH] io-wq: add cond_resched() to worker thread Reschedule the current IO worker to cut the risk that it is becoming a cpu hog. Signed-off-by: Hillf Danton Signed-off-by: Jens Axboe --- fs/io-wq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/io-wq.c b/fs/io-wq.c index a1c85458f021..541c8a3e0bbb 100644 --- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -429,6 +429,8 @@ static void io_worker_handle_work(struct io_worker *worker) if (signal_pending(current)) flush_signals(current); + cond_resched(); + spin_lock_irq(&worker->lock); worker->cur_work = work; spin_unlock_irq(&worker->lock);