linux-kernel - Re: [PATCH 00/14] Fix bug about invalid wake up problem

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Date:	Fri, 30 Aug 2013 07:39:34 +0800
From:	Libin <huawei.libin@...wei.com>
To:	Libin <huawei.libin@...wei.com>
CC:	<akpm@...ux-foundation.org>, <tj@...nel.org>,
	<viro@...iv.linux.org.uk>, <eparis@...hat.com>,
	<tglx@...utronix.de>, <rusty@...tcorp.com.au>,
	<ebiederm@...ssion.com>, <paulmck@...ux.vnet.ibm.com>,
	<john.stultz@...aro.org>, <mingo@...hat.com>,
	<peterz@...radead.org>, <gregkh@...uxfoundation.org>,
	<linux-kernel@...r.kernel.org>, <lizefan@...wei.com>,
	<jovi.zhangwei@...wei.com>, <guohanjun@...wei.com>,
	<zhangdianfang@...wei.com>, <wangyijing@...wei.com>
Subject: Re: [PATCH 00/14] Fix bug about invalid wake up problem

Hi all,
I'm so sorry, please ignore this patch set!
I have realized that there is no this problem in our kernel.
Preempt_schedule() has set PREEMPT_ACTIVE before calling
__schedule() and __schedule will check it if current state is not
TASK_RUNNING, avoiding this preemption.

Libin

On 2013/8/29 21:57, Libin wrote:
> 1)Problem Description:
> The prototype of invalid wakeup problem is as follows:
> ========================================================================
> ----------------------------
> Consumer Thread
> ----------------------------
> ...




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