linux-kernel - Re: [PATCH] mm: Don't warn if memdup

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Message-ID: <4F0EA367.8060105@cn.fujitsu.com>
Date:	Thu, 12 Jan 2012 17:09:59 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Pekka Enberg <penberg@...nel.org>
CC:	David Rientjes <rientjes@...gle.com>,
	Sasha Levin <levinsasha928@...il.com>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH] mm: Don't warn if memdup_user fails

Pekka Enberg wrote:
> On Thu, Jan 12, 2012 at 8:43 AM, Pekka Enberg <penberg@...nel.org> wrote:
>> Sasha, I suppose strndup_user() has the same kind of issue?
> 
> Oh, it uses memdup_user() internally. Sorry for the noise.
> 

Before memdup_user() was introduced, strndup_user() called kmalloc()
directly, without specifying __GFP_NOWARN.
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