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Commit f9eadbbd authored by Jens Axboe's avatar Jens Axboe
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writeback: bdi_writeback_task() must set task state before calling schedule() 



Calling schedule without setting the task state to non-running will
return immediately, so ensure that we set it properly and check our
sleep conditions after doing so.

This is a fixup for commit 69b62d01.

Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 7c8a3554

fs/fs-writeback.c

+7 −2
Original line number Diff line number Diff line
@@ -978,8 +978,13 @@ int bdi_writeback_task(struct bdi_writeback *wb) 
		if (dirty_writeback_interval) {

			wait_jiffies = msecs_to_jiffies(dirty_writeback_interval * 10);

			schedule_timeout_interruptible(wait_jiffies);

		} else

		} else {

			set_current_state(TASK_INTERRUPTIBLE);

			if (list_empty_careful(&wb->bdi->work_list) &&

			    !kthread_should_stop())

				schedule();

			__set_current_state(TASK_RUNNING);

		}



		try_to_freeze();

	}