From: Sergio Lopez <slp@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: "Fam Zheng" <fam@euphon.net>, "Kevin Wolf" <kwolf@redhat.com>,
qemu-block@nongnu.org, qemu-devel@nongnu.org,
"Max Reitz" <mreitz@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: Re: [PATCH 4/5] aio-posix: make AioHandler deletion O(1)
Date: Wed, 19 Feb 2020 11:41:45 +0100 [thread overview]
Message-ID: <20200219104145.qmxofusnwb3tsxsc@dritchie> (raw)
In-Reply-To: <20200214171712.541358-5-stefanha@redhat.com>
[-- Attachment #1: Type: text/plain, Size: 714 bytes --]
On Fri, Feb 14, 2020 at 05:17:11PM +0000, Stefan Hajnoczi wrote:
> It is not necessary to scan all AioHandlers for deletion. Keep a list
> of deleted handlers instead of scanning the full list of all handlers.
>
> The AioHandler->deleted field can be dropped. Let's check if the
> handler has been inserted into the deleted list instead. Add a new
> QLIST_IS_INSERTED() API for this check.
>
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---
> include/block/aio.h | 6 ++++-
> include/qemu/queue.h | 3 +++
> util/aio-posix.c | 53 +++++++++++++++++++++++++++++---------------
> 3 files changed, 43 insertions(+), 19 deletions(-)
Reviewed-by: Sergio Lopez <slp@redhat.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2020-02-19 10:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 17:17 [PATCH 0/5] aio-posix: towards an O(1) event loop Stefan Hajnoczi
2020-02-14 17:17 ` [PATCH 1/5] aio-posix: fix use after leaving scope in aio_poll() Stefan Hajnoczi
2020-02-19 7:02 ` Sergio Lopez
2020-02-14 17:17 ` [PATCH 2/5] aio-posix: don't pass ns timeout to epoll_wait() Stefan Hajnoczi
2020-02-19 10:12 ` Sergio Lopez
2020-02-14 17:17 ` [PATCH 3/5] qemu/queue.h: add QLIST_SAFE_REMOVE() Stefan Hajnoczi
2020-02-19 10:30 ` Sergio Lopez
2020-02-14 17:17 ` [PATCH 4/5] aio-posix: make AioHandler deletion O(1) Stefan Hajnoczi
2020-02-19 10:41 ` Sergio Lopez [this message]
2020-02-14 17:17 ` [PATCH 5/5] aio-posix: make AioHandler dispatch O(1) with epoll Stefan Hajnoczi
2020-02-19 11:00 ` Sergio Lopez
2020-02-19 11:13 ` Paolo Bonzini
2020-02-21 12:59 ` Stefan Hajnoczi
2020-02-21 13:06 ` Paolo Bonzini
2020-02-21 14:44 ` Stefan Hajnoczi
2020-02-21 14:47 ` Stefan Hajnoczi
2020-02-21 15:04 ` Paolo Bonzini
2020-02-21 15:29 ` Stefan Hajnoczi
2020-02-21 15:37 ` Paolo Bonzini
2020-02-21 15:29 ` [PATCH 0/5] aio-posix: towards an O(1) event loop 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=20200219104145.qmxofusnwb3tsxsc@dritchie \
--to=slp@redhat.com \
--cc=fam@euphon.net \
--cc=kwolf@redhat.com \
--cc=marcandre.lureau@redhat.com \
--cc=mreitz@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-block@nongnu.org \
--cc=qemu-devel@nongnu.org \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.