linux-kernel - Re: [PATCH] memory failure: replace 'MCE' with 'Memory failure'

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Date:	Tue, 12 Apr 2016 08:13:19 +0900
From:	Naoya Horiguchi <nao.horiguchi@...il.com>
To:	Chen Yucong <slaoub@...il.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Subject: Re: [PATCH] memory failure: replace 'MCE' with 'Memory failure'

On Fri, Apr 08, 2016 at 09:41:15PM +0800, Chen Yucong wrote:
> HWPoison was specific to some particular x86 platforms.
> And it is often seen as high level machine check handler.
> And therefore, 'MCE' is used for the format prefix of
> printk(). However, 'PowerNV' has also used HWPoison for
> handling memory errors[1], so 'MCE' is no longer suitable
> to memory_failure.c.
> 
> Additionally, 'MCE' and 'Memory failure' have different
> context. The former belongs to exception context and the
> latter belongs to process context. Furthermore, HWPoison
> can also be used for off-lining those sub-health pages
> that do not trigger any machine check exception.
> 
> This patch aims to replace 'MCE' with a more appropriate prefix.
> 
> [1] commit 75eb3d9b60c2 ("powerpc/powernv: Get FSP memory errors
> and plumb into memory poison infrastructure.")
> 
> Signed-off-by: Chen Yucong <slaoub@...il.com>

Fair enough, thank you.

Acked-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>