From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: "Fam Zheng" <fam@euphon.net>, "Kevin Wolf" <kwolf@redhat.com>,
qemu-block@nongnu.org, "Stefan Hajnoczi" <stefanha@gmail.com>,
qemu-devel@nongnu.org, "Max Reitz" <mreitz@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: Re: [PATCH 5/5] aio-posix: make AioHandler dispatch O(1) with epoll
Date: Fri, 21 Feb 2020 16:04:10 +0100 [thread overview]
Message-ID: <607d1b80-f66f-6519-b3e5-af48e1a65900@redhat.com> (raw)
In-Reply-To: <20200221144708.GD1501077@stefanha-x1.localdomain>
On 21/02/20 15:47, Stefan Hajnoczi wrote:
>>> QLIST_SAFE_REMOVE(node, node_ready); /* remove from nested parent's list */
>>> ^---- would cause corruption if node->node_ready was stale!
>>>
>>> Would you like me to add a comment?
>> No, it's okay.
> Are you happy with this series?
Yes. Let's keep the Q*_REMOVE cleanup on the todo list. I'd keep
Q*_SAFE_REMOVE, but clear the pointer unconditionally in Q*_REMOVE so
that we can have something like Q*_IN_LIST too.
> Shall I include it in my next pull request or do you want to merge it?
No, it's yours.
Paolo
next prev parent reply other threads:[~2020-02-21 15:05 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
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 [this message]
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
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