linux-kernel - Re: allow building a kernel without buffer

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Message-ID: <20230721062628.GC20845@lst.de>
Date:   Fri, 21 Jul 2023 08:26:28 +0200
From:   Christoph Hellwig <hch@....de>
To:     Bob Peterson <rpeterso@...hat.com>
Cc:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Matthew Wilcox <willy@...radead.org>,
        Christian Brauner <christian@...uner.io>,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        cluster-devel <cluster-devel@...hat.com>
Subject: Re: allow building a kernel without buffer_heads

On Thu, Jul 20, 2023 at 09:51:30AM -0500, Bob Peterson wrote:
> Gfs2 still uses buffer_heads to manage the metadata being pushed through 
> its journals. We've been reducing our dependency on them but eliminating 
> them altogether is a large and daunting task. We can still work toward that 
> goal, but it will take time.

That's fine - gfs2 selects CONFIG_BUFFER_HEAD after this series and
will be perfectly fine.