From: Davide Libenzi <davidel@xmailserver.org>
To: Jamie Lokier <jamie@shareable.org>
Cc: "David S. Miller" <davem@redhat.com>,
Eric Varsanyi <e0206@foo21.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
kuznet@ms2.inr.ac.ru
Subject: Re: POLLRDONCE optimisation for epoll users (was: epoll and half closed TCP connections)
Date: Sun, 13 Jul 2003 20:17:50 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.55.0307132015230.15022@bigblue.dev.mcafeelabs.com> (raw)
In-Reply-To: <20030714031242.GC23110@mail.jlokier.co.uk>
On Mon, 14 Jul 2003, Jamie Lokier wrote:
> Jamie Lokier wrote:
> > (e) there is urgent data with OOBINLINE (I think)
>
> To be more precise, using the POLLRDHUP patch as-is, if someone sends
> your program some data, then an URGent segment, then a FIN with
> optional data in between, your program won't notice the second data or
> FIN and will fail to clean up the socket.
And why ? To me it looks fairly simple. When the FIN is received a wakeup
is done on the poll wait list and the following f_op->poll will fetch the
RDHUP flag. Then the next epoll_wait() will fetch the event and will have
all the info it needs to do things correctly.
- Davide
next prev parent reply other threads:[~2003-07-14 3:10 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-12 18:16 [Patch][RFC] epoll and half closed TCP connections Eric Varsanyi
2003-07-12 19:44 ` Jamie Lokier
2003-07-12 20:51 ` Eric Varsanyi
2003-07-12 20:48 ` Davide Libenzi
2003-07-12 21:19 ` Eric Varsanyi
2003-07-12 21:20 ` Davide Libenzi
2003-07-12 21:41 ` Davide Libenzi
2003-07-12 23:11 ` Eric Varsanyi
2003-07-12 23:55 ` Davide Libenzi
2003-07-13 1:05 ` Eric Varsanyi
2003-07-13 20:32 ` David Schwartz
2003-07-13 21:10 ` Jamie Lokier
2003-07-13 23:05 ` David Schwartz
2003-07-13 23:09 ` Davide Libenzi
2003-07-14 8:14 ` Alan Cox
2003-07-14 15:03 ` Davide Libenzi
2003-07-14 1:27 ` Jamie Lokier
2003-07-13 21:14 ` Davide Libenzi
2003-07-13 23:05 ` David Schwartz
2003-07-13 23:11 ` Davide Libenzi
2003-07-13 23:52 ` Entrope
2003-07-14 6:14 ` David Schwartz
2003-07-14 7:20 ` Jamie Lokier
2003-07-14 1:51 ` Jamie Lokier
2003-07-14 6:14 ` David Schwartz
2003-07-15 20:27 ` James Antill
2003-07-16 1:46 ` David Schwartz
2003-07-16 2:09 ` James Antill
2003-07-13 13:12 ` Jamie Lokier
2003-07-13 16:55 ` Davide Libenzi
2003-07-12 20:01 ` Davide Libenzi
2003-07-13 5:24 ` David S. Miller
2003-07-13 14:07 ` Jamie Lokier
2003-07-13 17:00 ` Davide Libenzi
2003-07-13 19:15 ` Jamie Lokier
2003-07-13 23:03 ` Davide Libenzi
2003-07-14 1:41 ` Jamie Lokier
2003-07-14 2:24 ` POLLRDONCE optimisation for epoll users (was: epoll and half closed TCP connections) Jamie Lokier
2003-07-14 2:37 ` Davide Libenzi
2003-07-14 2:43 ` Davide Libenzi
2003-07-14 2:56 ` Jamie Lokier
2003-07-14 3:02 ` Davide Libenzi
2003-07-14 3:16 ` Jamie Lokier
2003-07-14 3:21 ` Davide Libenzi
2003-07-14 3:42 ` Jamie Lokier
2003-07-14 4:00 ` Davide Libenzi
2003-07-14 5:51 ` Jamie Lokier
2003-07-14 6:24 ` Davide Libenzi
2003-07-14 6:57 ` Jamie Lokier
2003-07-14 3:12 ` Jamie Lokier
2003-07-14 3:17 ` Davide Libenzi [this message]
2003-07-14 3:35 ` Jamie Lokier
2003-07-14 3:04 ` Jamie Lokier
2003-07-14 3:12 ` Davide Libenzi
2003-07-14 3:27 ` Jamie Lokier
2003-07-14 17:09 ` [Patch][RFC] epoll and half closed TCP connections kuznet
2003-07-14 17:09 ` Davide Libenzi
2003-07-14 21:45 ` Jamie Lokier
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