linux-kernel - Re: [PATCH] z3fold: fix stale list handling

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Message-Id: <20170914141532.9339436e0fb0fd85b99b8dbf@linux-foundation.org>
Date:   Thu, 14 Sep 2017 14:15:32 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Vitaly Wool <vitalywool@...il.com>
Cc:     Linux-MM <linux-mm@...ck.org>, linux-kernel@...r.kernel.org,
        Dan Streetman <ddstreet@...e.org>, Oleksiy.Avramchenko@...y.com
Subject: Re: [PATCH] z3fold: fix stale list handling

On Thu, 14 Sep 2017 15:59:36 +0200 Vitaly Wool <vitalywool@...il.com> wrote:

> Fix the situation when clear_bit() is called for page->private before
> the page pointer is actually assigned. While at it, remove work_busy()
> check because it is costly and does not give 100% guarantee anyway.

Does this fix https://bugzilla.kernel.org/show_bug.cgi?id=196877 ?  If
so, the bugzilla references and a reported-by should be added.

What are the end-user visible effects of the bug?  Please always
include this info when fixing bugs.

Should this fix be backported into -stable kernels?