Re: [PATCH v2] sched/core: add __sched tag for io_schedule()

On Mon, Jun 03, 2019 at 05:13:38PM +0800, Gao Xiang wrote:

non-inline io_schedule() was introduced in commit 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and io_schedule_finish()") Keep in line with io_schedule_timeout, Otherwise "/proc/<pid>/wchan" will report io_schedule() rather than its callers when waiting io.

Reported-by: Jilong Kou koujilong@huawei.com Cc: Tejun Heo tj@kernel.org Cc: Ingo Molnar mingo@redhat.com Cc: Peter Zijlstra peterz@infradead.org Acked-by: Tejun Heo tj@kernel.org Fixes: 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and io_schedule_finish()") Cc: stable@vger.kernel.org # 4.11+ Signed-off-by: Gao Xiang gaoxiang25@huawei.com

Thanks