linux-kernel - Re: [PATCH v21 07/30] splice: Make splice from an O_DIRECT fd use copy_splice

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Message-ID: <20230520-ethisch-wahlabend-1b7d9cf4dd13@brauner>
Date:   Sat, 20 May 2023 11:39:27 +0200
From:   Christian Brauner <brauner@...nel.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>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v21 07/30] splice: Make splice from an O_DIRECT fd use
 copy_splice_read()

On Sat, May 20, 2023 at 01:00:26AM +0100, David Howells wrote:
> Make a read splice from a file descriptor that's open O_DIRECT use
> copy_splice_read() to do the reading as filemap_splice_read() is unlikely
> to find any pagecache to splice.
> 
> Signed-off-by: David Howells <dhowells@...hat.com>
> cc: Christoph Hellwig <hch@....de>
> cc: Al Viro <viro@...iv.linux.org.uk>
> cc: Jens Axboe <axboe@...nel.dk>
> cc: linux-fsdevel@...r.kernel.org
> cc: linux-block@...r.kernel.org
> cc: linux-mm@...ck.org
> ---

Reviewed-by: Christian Brauner <brauner@...nel.org>