From: Marek Majkowski <marek@cloudflare.com>
To: axboe@kernel.dk
Cc: avi@scylladb.com, hch@lst.de, jannh@google.com,
jmoyer@redhat.com, linux-aio@kvack.org,
linux-api@vger.kernel.org, linux-block@vger.kernel.org,
viro@ZenIV.linux.org.uk
Subject: Re: [PATCHSET v15] io_uring IO interface
Date: Thu, 21 Feb 2019 13:10:22 +0100 [thread overview]
Message-ID: <20190221121022.7867-1-marek@cloudflare.com> (raw)
In-Reply-To: <20190211190049.7888-1-axboe@kernel.dk>
> From: Jens Axboe <axboe@kernel.dk>
> Subject: [PATCHSET v15] io_uring IO interface
> Message-ID: <20190211190049.7888-1-axboe@kernel.dk> (raw)
>
> Some final tweaks, mostly cosmetic, but also two important fixes:
>
> 1) Ensure that we account the skb appropriately against the socket.
> Some network config options apparently return is an skb with
> ->truesize != 0 when allocated with a size of 0, ensure we add
> those as references against sock->sk_wmem_alloc. Reported by
> Matt Mullins.
Jens,
I tried using io_uring with network sockets. It seem to be doing the
right thing. One bit is missing though: "flags" as in recv(2).
In perfect world I would like to specify at least:
- MSG_DONTWAIT
- MSG_WAITALL
- MSG_NOSIGNAL
Right now, unless I'm missing something, io_uring_sqe doesn't have a
place where we could store these. "flags" is needed for any
non-trivial network I/O.
A separate discussion is about io_uring supporting more complex
network stuff in future like 'struct msghdr', MSG_ERRQUEUE or CMSG.
Cheers,
Marek
next prev parent reply other threads:[~2019-02-21 12:10 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-11 19:00 [PATCHSET v15] io_uring IO interface Jens Axboe
2019-02-11 19:00 ` [PATCH 01/19] fs: add an iopoll method to struct file_operations Jens Axboe
2019-02-11 19:00 ` [PATCH] io_uring: add io_uring_event cache hit information Jens Axboe
2019-02-11 19:00 ` [PATCH 02/19] block: wire up block device iopoll method Jens Axboe
2019-02-11 19:00 ` [PATCH 03/19] block: add bio_set_polled() helper Jens Axboe
2019-02-11 19:00 ` [PATCH 04/19] iomap: wire up the iopoll method Jens Axboe
2019-02-11 19:00 ` [PATCH 05/19] Add io_uring IO interface Jens Axboe
2019-02-11 19:00 ` [PATCH 06/19] io_uring: add fsync support Jens Axboe
2019-02-11 19:00 ` [PATCH 07/19] io_uring: support for IO polling Jens Axboe
2019-02-11 19:00 ` [PATCH 08/19] fs: add fget_many() and fput_many() Jens Axboe
2019-02-11 19:00 ` [PATCH 09/19] io_uring: use fget/fput_many() for file references Jens Axboe
2019-02-11 19:00 ` [PATCH 10/19] io_uring: batch io_kiocb allocation Jens Axboe
2019-02-11 19:00 ` [PATCH 11/19] block: implement bio helper to add iter bvec pages to bio Jens Axboe
2019-02-20 22:58 ` Ming Lei
2019-02-21 17:45 ` Jens Axboe
2019-02-26 3:46 ` Eric Biggers
2019-02-26 4:34 ` Jens Axboe
2019-02-26 15:54 ` Jens Axboe
2019-02-27 1:21 ` Ming Lei
2019-02-27 1:47 ` Jens Axboe
2019-02-27 1:53 ` Ming Lei
2019-02-27 1:57 ` Jens Axboe
2019-02-27 2:21 ` Ming Lei
2019-02-27 2:28 ` Jens Axboe
2019-02-27 2:37 ` Ming Lei
2019-02-27 2:43 ` Jens Axboe
2019-02-27 3:09 ` Ming Lei
2019-02-27 3:37 ` Jens Axboe
2019-02-27 3:43 ` Jens Axboe
2019-02-27 3:44 ` Ming Lei
2019-02-27 4:05 ` Jens Axboe
2019-02-27 4:06 ` Jens Axboe
2019-02-27 19:42 ` Christoph Hellwig
2019-02-28 8:37 ` Ming Lei
2019-02-27 23:35 ` Ming Lei
2019-03-08 7:55 ` Christoph Hellwig
2019-03-08 9:12 ` Ming Lei
2019-03-08 8:18 ` Christoph Hellwig
2019-02-11 19:00 ` [PATCH 12/19] io_uring: add support for pre-mapped user IO buffers Jens Axboe
2019-02-19 19:08 ` Jann Horn
2019-02-22 22:29 ` Jens Axboe
2019-02-11 19:00 ` [PATCH 13/19] net: split out functions related to registering inflight socket files Jens Axboe
2019-02-11 19:00 ` [PATCH 14/19] io_uring: add file set registration Jens Axboe
2019-02-19 16:12 ` Jann Horn
2019-02-22 22:29 ` Jens Axboe
2019-02-11 19:00 ` [PATCH 15/19] io_uring: add submission polling Jens Axboe
2019-02-11 19:00 ` [PATCH 16/19] io_uring: add io_kiocb ref count Jens Axboe
2019-02-11 19:00 ` [PATCH 17/19] io_uring: add support for IORING_OP_POLL Jens Axboe
2019-02-11 19:00 ` [PATCH 18/19] io_uring: allow workqueue item to handle multiple buffered requests Jens Axboe
2019-02-11 19:00 ` [PATCH 19/19] io_uring: add io_uring_event cache hit information Jens Axboe
2019-02-21 12:10 ` Marek Majkowski [this message]
2019-02-21 17:48 ` [PATCHSET v15] io_uring IO interface Jens Axboe
2019-02-22 15:01 ` Marek Majkowski
2019-02-22 22:32 ` Jens Axboe
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=20190221121022.7867-1-marek@cloudflare.com \
--to=marek@cloudflare.com \
--cc=avi@scylladb.com \
--cc=axboe@kernel.dk \
--cc=hch@lst.de \
--cc=jannh@google.com \
--cc=jmoyer@redhat.com \
--cc=linux-aio@kvack.org \
--cc=linux-api@vger.kernel.org \
--cc=linux-block@vger.kernel.org \
--cc=viro@ZenIV.linux.org.uk \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).