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Date: Mon, 27 Jul 2015 01:07:18 -0700 (PDT) From: David Miller <davem@...emloft.net> To: sd@...asysnail.net Cc: netdev@...r.kernel.org, rh-bugzilla@...c.de, dan@...sornet.com Subject: Re: [PATCH net] tcp: fix recv with flags MSG_WAITALL | MSG_PEEK From: Sabrina Dubroca <sd@...asysnail.net> Date: Fri, 24 Jul 2015 18:19:25 +0200 > Currently, tcp_recvmsg enters a busy loop in sk_wait_data if called > with flags = MSG_WAITALL | MSG_PEEK. > > sk_wait_data waits for sk_receive_queue not empty, but in this case, > the receive queue is not empty, but does not contain any skb that we > can use. > > Add a "last skb seen on receive queue" argument to sk_wait_data, so > that it sleeps until the receive queue has new skbs. > > Link: https://bugzilla.kernel.org/show_bug.cgi?id=99461 > Link: https://sourceware.org/bugzilla/show_bug.cgi?id=18493 > Link: https://bugzilla.redhat.com/show_bug.cgi?id=1205258 > Reported-by: Enrico Scholz <rh-bugzilla@...c.de> > Reported-by: Dan Searle <dan@...sornet.com> > Signed-off-by: Sabrina Dubroca <sd@...asysnail.net> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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