linux-kernel - Re: [PATCH 1/2] mm: fix logic error of page_expected

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Message-ID: <YyGESKxm4eA7MSAG@casper.infradead.org>
Date:   Wed, 14 Sep 2022 08:35:36 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     "zhaoyang.huang" <zhaoyang.huang@...soc.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Zhaoyang Huang <huangzhaoyang@...il.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, ke.wang@...soc.com
Subject: Re: [PATCH 1/2] mm: fix logic error of page_expected_state

On Wed, Sep 14, 2022 at 11:37:00AM +0800, zhaoyang.huang wrote:
> From: Zhaoyang Huang <zhaoyang.huang@...soc.com>
> 
> The page with special page type will be deemed as bad page wrongly since
> type share the same address with mapcount.

That's not wrongly.  You didn't clear the bit.  I told you you would
need to do that in the first version of the patch you sent.