linux-kernel - Re: [PATCH] mm/slub: use unchecked percpu access within preemptible sections

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Message-ID: <20150122015904.GF21444@js1304-P5Q-DELUXE>
Date:	Thu, 22 Jan 2015 10:59:04 +0900
From:	Joonsoo Kim <iamjoonsoo.kim@....com>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	linux-kernel@...r.kernel.org, cl@...ux.com, brouer@...hat.com,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] mm/slub: use unchecked percpu access within preemptible
 sections

On Tue, Jan 20, 2015 at 11:31:43PM -0500, Sasha Levin wrote:
> Commit "mm/slub: optimize alloc/free fastpath by removing preemption on/off"
> has added access to percpu memory while the code is preemptible.
> 
> While those accesses are okay, this creates a huge amount of warnings from
> the code that checks for that.
> 
> Signed-off-by: Sasha Levin <sasha.levin@...cle.com>

Hello,

I already sent the patch to fix this issue and it is in mmotm, but,
not be released yet.

https://lkml.org/lkml/2015/1/19/17

Thanks.

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