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Date: Wed, 19 Sep 2007 22:43:21 -0700 (PDT) From: Davide Libenzi <davidel@...ilserver.org> To: Nagendra Tomar <tomer_iisc@...oo.com> cc: David Miller <davem@...emloft.net>, netdev@...r.kernel.org, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 2.6.23-rc6 Resending] NETWORKING : Edge Triggered EPOLLOUT events get missed for TCP sockets On Wed, 19 Sep 2007, Nagendra Tomar wrote: > Definitely not ! > > The point is that the "tcp write space available" > wakeup does not get called if SOCK_NOSPACE bit is not set. This was > fine when the wakeup was merely a wakeup (since SOCK_NOSPACE bit > indicated that someone really cared abt the wakeup). Now after the > introduction of callback'ed wakeups, we might have some work to > do inside the callback even if there is nobody interested in the wakeup > at that point of time. > > In this particular case the ep_poll_callback is not getting called and > hence the socket fd is not getting added to the ready list. I know, I saw the patch. I was just commenting the point where DaveM was heading to ;) This things needs to be looked at a little bit more deeply. - Davide - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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