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Message-ID: <20190603094425.GG3436@hirez.programming.kicks-ass.net>
Date: Mon, 3 Jun 2019 11:44:25 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Gao Xiang <gaoxiang25@...wei.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, Tejun Heo <tj@...nel.org>,
Ingo Molnar <mingo@...hat.com>, stable@...r.kernel.org,
Miao Xie <miaoxie@...wei.com>, koujilong@...wei.com
Subject: 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@...wei.com>
> Cc: Tejun Heo <tj@...nel.org>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Acked-by: Tejun Heo <tj@...nel.org>
> Fixes: 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and io_schedule_finish()")
> Cc: <stable@...r.kernel.org> # 4.11+
> Signed-off-by: Gao Xiang <gaoxiang25@...wei.com>
Thanks
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