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From: Christoph Hellwig <hch@infradead.org>
To: Avi Kivity <avi@scylladb.com>
Cc: Goldwyn Rodrigues <rgoldwyn@suse.de>,
	linux-fsdevel@vger.kernel.org, linux-aio@kvack.org
Subject: Re: [PATCH] fs: Return EOPNOTSUPP if block layer does not support REQ_NOWAIT
Date: Thu, 13 Dec 2018 06:24:34 -0800	[thread overview]
Message-ID: <20181213142434.GA3239@infradead.org> (raw)
In-Reply-To: <38b8f7a9-cf95-e165-4e9a-40ddcfe6bed2@scylladb.com>

On Thu, Dec 13, 2018 at 02:04:41PM +0200, Avi Kivity wrote:
> On 12/13/18 1:53 PM, Goldwyn Rodrigues wrote:
> > For AIO+DIO with RWF_NOWAIT, if the block layer does not support REQ_NOWAIT,
> > it returns EIO. Return EOPNOTSUPP to represent the correct error code.
> 
> 
> Cc: stable@?
> 
> 
> > Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
> > ---
> >   fs/direct-io.c | 11 +++++++----
> >   1 file changed, 7 insertions(+), 4 deletions(-)
> > 
> > diff --git a/fs/direct-io.c b/fs/direct-io.c
> > index 41a0e97252ae..77adf33916b8 100644
> > --- a/fs/direct-io.c
> > +++ b/fs/direct-io.c
> > @@ -542,10 +542,13 @@ static blk_status_t dio_bio_complete(struct dio *dio, struct bio *bio)
> >   	blk_status_t err = bio->bi_status;
> >   	if (err) {

I think this just need to become:

	if (err)
		dio->io_error = blk_status_to_errno(bio->bi_status);

And Avi, you really should be using XFS ;-)

  reply	other threads:[~2018-12-13 14:24 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-13 11:53 Goldwyn Rodrigues
2018-12-13 12:04 ` Avi Kivity
2018-12-13 14:24   ` Christoph Hellwig [this message]
2018-12-13 15:44     ` Goldwyn Rodrigues
2018-12-16 10:45     ` Avi Kivity
2018-12-17 17:38       ` Christoph Hellwig
2018-12-18 11:55         ` Goldwyn Rodrigues
2018-12-20 15:32           ` Avi Kivity
2018-12-13 16:27 ` Matthew Wilcox
2018-12-13 19:04   ` Goldwyn Rodrigues
2018-12-13 22:43 ` Dave Chinner
2018-12-14 17:09   ` Goldwyn Rodrigues
2018-12-16 21:35     ` Dave Chinner
2018-12-18 11:53       ` Goldwyn Rodrigues
2020-07-22 16:08 ` Avi Kivity
2020-07-28 13:38   ` Goldwyn Rodrigues
2020-07-28 13:47     ` Avi Kivity
2020-07-31 13:11   ` Christoph Hellwig

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