linux-kernel - Re: [PATCH 6/6] fs: add CONFIG_BUFFER

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Message-ID: <ZL7cCNGhe4/YhLWn@bombadil.infradead.org>
Date:   Mon, 24 Jul 2023 13:16:08 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     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
Subject: Re: [PATCH 6/6] fs: add CONFIG_BUFFER_HEAD

On Thu, Jul 20, 2023 at 04:04:52PM +0200, Christoph Hellwig wrote:
> Add a new config option that controls building the buffer_head code, and
> select it from all file systems and stacking drivers that need it.
> 
> For the block device nodes and alternative iomap based buffered I/O path
> is provided when buffer_head support is not enabled, and iomap needs a
> little tweak to be able to compile out the buffer_head based code path.
> 
> Otherwise this is just Kconfig and ifdef changes.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Reviewed-by: Luis Chamberlain <mcgrof@...nel.org>

  Luis