linux-kernel - Re: [PATCH] kthread: Fix return value of kthread

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Message-ID: <alpine.DEB.2.02.1406031434540.19491@chino.kir.corp.google.com>
Date:	Tue, 3 Jun 2014 14:35:31 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
cc:	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	joseph.salisbury@...onical.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Tejun Heo <tj@...nel.org>, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, kernel-team@...ts.ubuntu.com
Subject: Re: [PATCH] kthread: Fix return value of kthread_create() upon
 SIGKILL.

On Tue, 3 Jun 2014, Tetsuo Handa wrote:

> >From c41fa0b9294900a86167d6c8db392d99dde09774 Mon Sep 17 00:00:00 2001
> From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
> Date: Tue, 3 Jun 2014 21:46:24 +0900
> Subject: [PATCH] kthread: Fix return value of kthread_create() upon SIGKILL.
> 
> Commit 786235eeb "kthread: make kthread_create() killable" meant for
> allowing kthread_create() to abort as soon as killed by the OOM-killer.
> But returning -ENOMEM is wrong if killed by SIGKILL from userspace.
> Change kthread_create() to return -EINTR upon SIGKILL.
> 
> Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
> Cc: Oleg Nesterov <oleg@...hat.com>
> Cc: David Rientjes <rientjes@...gle.com>
> Cc: stable <stable@...nel.org> [3.13+]

Acked-by: David Rientjes <rientjes@...gle.com>
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