linux-kernel - Re: [RFC] HWPOISON: soft offlining for non-lru movable page

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Date:   Wed, 18 Jan 2017 10:51:48 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Yisheng Xie <xieyisheng1@...wei.com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        n-horiguchi@...jp.nec.com, akpm@...ux-foundation.org,
        minchan@...nel.org, vbabka@...e.cz, guohanjun@...wei.com,
        qiuxishi@...wei.com
Subject: Re: [RFC] HWPOISON: soft offlining for non-lru movable page

On Wed 18-01-17 12:00:54, Yisheng Xie wrote:
> This patch is to extends soft offlining framework to support
> non-lru page, which already support migration after
> commit bda807d44454 ("mm: migrate: support non-lru movable page
> migration")
> 
> When memory corrected errors occur on a non-lru movable page,
> we can choose to stop using it by migrating data onto another
> page and disable the original (maybe half-broken) one.

soft_offline_movable_page duplicates quite a lot from
__soft_offline_page. Would it be better to handle both cases in
__soft_offline_page?
-- 
Michal Hocko
SUSE Labs