Messages in this thread | | | Date | Tue, 01 Dec 2015 14:48:03 -0500 (EST) | Subject | Re: [PATCH] unix: use wq_has_sleeper in unix_dgram_recvmsg | From | David Miller <> |
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From: Rainer Weikusat <rweikusat@mobileactivedefense.com> Date: Thu, 26 Nov 2015 19:23:15 +0000
> The current unix_dgram_recvmsg does a wake up for every received > datagram. This seems wasteful as only SOCK_DGRAM client sockets in an > n:1 association with a server socket will ever wait because of the > associated condition. The patch below changes the function such that the > wake up only happens if wq_has_sleeper indicates that someone actually > wants to be notified. Testing with SOCK_SEQPACKET and SOCK_DGRAM socket > seems to confirm that this is an improvment. > > Signed-Off-By: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Applied, thanks.
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