Linux-Fsdevel Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: Matthew Wilcox <willy@infradead.org>
Cc: linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, avi@scylladb.com
Subject: Re: [PATCH] fs: Return EOPNOTSUPP if block layer does not support REQ_NOWAIT
Date: Thu, 13 Dec 2018 13:04:43 -0600	[thread overview]
Message-ID: <20181213190443.3v6zlyxugfpbknck@merlin> (raw)
In-Reply-To: <20181213162718.GP6830@bombadil.infradead.org>

On  8:27 13/12, Matthew Wilcox wrote:
> On Thu, Dec 13, 2018 at 05:53:06AM -0600, 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.
> 
> Why is EOPNOTSUPP the "correct" error code?  That's a networking error,
> not a block layer error.

No. We return EOPNOTSUPP in filesystems as well, in case RWF_NOWAIT is not
supported.

-- 
Goldwyn

  reply	other threads:[~2018-12-13 19:04 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
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 [this message]
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20181213190443.3v6zlyxugfpbknck@merlin \
    --to=rgoldwyn@suse.de \
    --cc=avi@scylladb.com \
    --cc=linux-aio@kvack.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=willy@infradead.org \
    --subject='Re: [PATCH] fs: Return EOPNOTSUPP if block layer does not support REQ_NOWAIT' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).