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authorYing Xue <ying.xue@windriver.com>2014-03-06 17:40:18 +0400
committerDavid S. Miller <davem@davemloft.net>2014-03-06 23:46:23 +0400
commitfe8e4649397915cf3b2ab0b695929a27e543967e (patch)
tree383c648ffdef61232e623f723f17247dcb860faf /net/tipc/config.h
parent4652edb70e8a7eebbe47fa931940f65522c36e8f (diff)
downloadlinux-fe8e4649397915cf3b2ab0b695929a27e543967e.tar.xz
tipc: avoid to unnecessary process switch under non-block mode
When messages are received via tipc socket under non-block mode, schedule_timeout() is called in tipc_wait_for_rcvmsg(), that is, the process of receiving messages will be scheduled once although timeout value passed to schedule_timeout() is 0. The same issue exists in accept()/wait_for_accept(). To avoid this unnecessary process switch, we only call schedule_timeout() if the timeout value is non-zero. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/config.h')
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