linux-kernel - Re: [PATCH v2 3/5] mm/memory-failure.c: add hwpoison

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Message-ID: <20220511081842.GA211620@hori.linux.bs1.fc.nec.co.jp>
Date:   Wed, 11 May 2022 08:18:42 +0000
From:   HORIGUCHI NAOYA(堀口　直也) 
        <naoya.horiguchi@....com>
To:     zhenwei pi <pizhenwei@...edance.com>
CC:     "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/5] mm/memory-failure.c: add hwpoison_filter for soft
 offline

On Mon, May 09, 2022 at 06:56:39PM +0800, zhenwei pi wrote:
> hwpoison_filter is missing in the soft offline path, this leads an
> issue: after enabling the corrupt filter, the user process still has
> a chance to inject hwpoison fault by
> madvise(addr, len, MADV_SOFT_OFFLINE) at PFN which is expected to
> reject.
> 
> Also do a minor change in comment of memory_failure().
> 
> Signed-off-by: zhenwei pi <pizhenwei@...edance.com>

Looks good to me, thank you.

Acked-by: Naoya Horiguchi <naoya.horiguchi@....com>