linux-kernel - Re: [PATCH 2/4] splice: Provide pipe_head

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Message-ID: <Y+pNEbQklWdlo2tk@infradead.org>
Date:   Mon, 13 Feb 2023 06:45:37 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     David Howells <dhowells@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Al Viro <viro@...iv.linux.org.uk>,
        Christoph Hellwig <hch@...radead.org>,
        Matthew Wilcox <willy@...radead.org>, Jan Kara <jack@...e.cz>,
        Jeff Layton <jlayton@...nel.org>,
        David Hildenbrand <david@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Hillf Danton <hdanton@...a.com>, linux-fsdevel@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Christoph Hellwig <hch@....de>,
        John Hubbard <jhubbard@...dia.com>
Subject: Re: [PATCH 2/4] splice: Provide pipe_head_buf() helper

On Mon, Feb 13, 2023 at 01:46:17PM +0000, David Howells wrote:
> Provide a helper, pipe_head_buf(), to get the current head buffer from a
> pipe.  Implement this as a wrapper around a more general function,
> pipe_buf(), that gets a specified buffer.

Looks good:

Reviewed-by: Christoph Hellwig <hch@....de>

There's also a bunch of spots in existing code that should use this
helper.