From: Hillf Danton <hdanton@sina.com> mainline inclusion from mainline-5.5-rc4 commit fd1c4bc6e9b34a5e4fe7a3130a49380ef9d7037c category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=27 CVE: NA --------------------------- Reschedule the current IO worker to cut the risk that it is becoming a cpu hog. Signed-off-by: Hillf Danton <hdanton@sina.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: yangerkun <yangerkun@huawei.com> Reviewed-by: zhangyi (F) <yi.zhang@huawei.com> Signed-off-by: Cheng Jian <cj.chengjian@huawei.com> --- fs/io-wq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/io-wq.c b/fs/io-wq.c index 8adc2821b0cc..1b5889c89e9b 100644 --- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -430,6 +430,8 @@ 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); -- 2.25.1