linux-kernel - Re: [RFC PATCH] mm: move xa forward when run across zombie page

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Message-ID: <Y1mPPq6mc/C7pNhM@casper.infradead.org>
Date:   Wed, 26 Oct 2022 20:49:18 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Zhaoyang Huang <huangzhaoyang@...il.com>
Cc:     Dave Chinner <david@...morbit.com>,
        "zhaoyang.huang" <zhaoyang.huang@...soc.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, ke.wang@...soc.com,
        steve.kang@...soc.com, baocong.liu@...soc.com,
        linux-fsdevel@...r.kernel.org
Subject: Re: [RFC PATCH] mm: move xa forward when run across zombie page

On Wed, Oct 19, 2022 at 01:48:37PM +0800, Zhaoyang Huang wrote:
> hint from my side. The original problem I raised is under v5.15 where
> there is no folio yet.

I really wish you'd stop dropping hints and give all of the information
you have so I can try to figure this out withouot sending individual
emails for every little piece.

Do you have CONFIG_READ_ONLY_THP_FOR_FS=y in your .config?