From: Maxim Levitsky <mlevitsk@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>,
Aarushi Mehta <mehta.aaru20@gmail.com>
Cc: Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>,
Sergio Lopez <slp@redhat.com>,
qemu-block@nongnu.org, qemu-devel@nongnu.org,
Max Reitz <mreitz@redhat.com>,
saket.sinha89@gmail.com, Paolo Bonzini <pbonzini@redhat.com>,
Julia Suvorova <jusual@mail.ru>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v5 10/12] block/io_uring: adds userspace completion polling
Date: Mon, 17 Jun 2019 17:14:31 +0300 [thread overview]
Message-ID: <ab796f1ca07ef09aac17486472e941ce096d2cbe.camel@redhat.com> (raw)
In-Reply-To: <20190611095153.GQ14257@stefanha-x1.localdomain>
On Tue, 2019-06-11 at 10:51 +0100, Stefan Hajnoczi wrote:
> On Mon, Jun 10, 2019 at 07:19:03PM +0530, Aarushi Mehta wrote:
> > +static bool qemu_luring_poll_cb(void *opaque)
> > +{
> > + LuringState *s = opaque;
> > + struct io_uring_cqe *cqes;
> > +
> > + if (io_uring_peek_cqe(&s->ring, &cqes) == 0) {
> > + if (!cqes) {
> > + qemu_luring_process_completions_and_submit(s);
> > + return true;
> > + }
>
> Is this logic inverted? We have a completion when cqes != NULL.
This indeed looks inverted to me.
Best regards,
Maxim Levitsky
next prev parent reply other threads:[~2019-06-17 14:22 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 13:48 [Qemu-devel] [PATCH v5 00/12] Add support for io_uring Aarushi Mehta
2019-06-10 13:48 ` [Qemu-devel] [PATCH v5 01/12] configure: permit use of io_uring Aarushi Mehta
2019-06-10 13:48 ` [Qemu-devel] [PATCH v5 02/12] qapi/block-core: add option for io_uring Aarushi Mehta
2019-06-11 7:36 ` Fam Zheng
2019-06-11 9:32 ` Stefan Hajnoczi
2019-07-03 6:26 ` Markus Armbruster
2019-06-10 13:48 ` [Qemu-devel] [PATCH v5 03/12] block/block: add BDRV flag " Aarushi Mehta
2019-06-10 13:48 ` [Qemu-devel] [PATCH v5 04/12] block/io_uring: implements interfaces " Aarushi Mehta
2019-06-11 11:17 ` Fam Zheng
2019-06-12 14:43 ` Stefan Hajnoczi
2019-06-17 12:26 ` Maxim Levitsky
2019-06-19 10:14 ` Stefan Hajnoczi
2019-06-19 10:47 ` Maxim Levitsky
2019-06-22 15:10 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2019-06-10 13:48 ` [Qemu-devel] [PATCH v5 05/12] stubs: add stubs for io_uring interface Aarushi Mehta
2019-06-17 12:33 ` Maxim Levitsky
2019-06-19 10:21 ` Stefan Hajnoczi
2019-06-10 13:48 ` [Qemu-devel] [PATCH v5 06/12] util/async: add aio interfaces for io_uring Aarushi Mehta
2019-06-17 12:56 ` Maxim Levitsky
2019-06-10 13:49 ` [Qemu-devel] [PATCH v5 07/12] blockdev: accept io_uring as option Aarushi Mehta
2019-06-17 13:01 ` Maxim Levitsky
2019-06-19 10:24 ` Stefan Hajnoczi
2019-06-19 10:48 ` Maxim Levitsky
2019-06-10 13:49 ` [Qemu-devel] [PATCH v5 08/12] block/file-posix.c: extend to use io_uring Aarushi Mehta
2019-06-17 14:12 ` Maxim Levitsky
2019-06-10 13:49 ` [Qemu-devel] [PATCH v5 09/12] block: add trace events for io_uring Aarushi Mehta
2019-06-11 9:47 ` Stefan Hajnoczi
2019-06-11 11:34 ` Fam Zheng
2019-06-10 13:49 ` [Qemu-devel] [PATCH v5 10/12] block/io_uring: adds userspace completion polling Aarushi Mehta
2019-06-11 9:51 ` Stefan Hajnoczi
2019-06-17 14:14 ` Maxim Levitsky [this message]
2019-06-10 13:49 ` [Qemu-devel] [PATCH v5 11/12] qemu-io: adds support for io_uring Aarushi Mehta
2019-06-11 9:54 ` Stefan Hajnoczi
2019-06-11 12:26 ` Fam Zheng
2019-06-10 13:49 ` [Qemu-devel] [PATCH v5 12/12] qemu-iotests/087: checks " Aarushi Mehta
2019-06-11 9:58 ` Stefan Hajnoczi
2019-06-17 14:21 ` Maxim Levitsky
2019-06-11 9:56 ` [Qemu-devel] [PATCH v5 00/12] Add support " Stefan Hajnoczi
2019-06-22 15:13 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2019-06-23 14:03 ` Stefan Hajnoczi
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=ab796f1ca07ef09aac17486472e941ce096d2cbe.camel@redhat.com \
--to=mlevitsk@redhat.com \
--cc=armbru@redhat.com \
--cc=fam@euphon.net \
--cc=jusual@mail.ru \
--cc=kwolf@redhat.com \
--cc=mehta.aaru20@gmail.com \
--cc=mreitz@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-block@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=saket.sinha89@gmail.com \
--cc=slp@redhat.com \
--cc=stefanha@redhat.com \
/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).