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linux/net/tipc
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Ying Xue fe8e464939 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>
2014-03-06 14:46:23 -05:00
..
addr.c tipc: compress out gratuitous extra carriage returns 2012-04-30 15:53:56 -04:00
addr.h tipc: compress out gratuitous extra carriage returns 2012-04-30 15:53:56 -04:00
bcast.c tipc: make link start event synchronous 2014-01-07 18:44:26 -05:00
bcast.h tipc: cosmetic realignment of function arguments 2013-06-17 15:53:01 -07:00
bearer.c tipc: make bearer set up in module insertion stage 2014-02-22 00:00:15 -05:00
bearer.h tipc: rename functions related to link failover and improve comments 2014-01-07 18:44:25 -05:00
config.c tipc: allow connection shutdown callback to be invoked in advance 2014-03-06 14:46:23 -05:00
config.h tipc: Optimize re-initialization of configuration service 2012-04-26 17:19:07 -04:00
core.c tipc: make bearer set up in module insertion stage 2014-02-22 00:00:15 -05:00
core.h tipc: make bearer set up in module insertion stage 2014-02-22 00:00:15 -05:00
discover.c tipc: introduce new spinlock to protect struct link_req 2014-01-07 18:44:25 -05:00
discover.h tipc: rename struct link* to struct tipc_link* 2011-12-29 21:53:30 -05:00
eth_media.c tipc: eliminate code duplication in media layer 2013-12-11 00:17:43 -05:00
handler.c tipc: protect handler_enabled variable with qitem_lock spin lock 2013-12-10 22:35:49 -05:00
ib_media.c tipc: eliminate code duplication in media layer 2013-12-11 00:17:43 -05:00
Kconfig tipc: add InfiniBand media type 2013-04-17 14:18:33 -04:00
link.c tipc: fix message corruption bug for deferred packets 2014-02-13 16:35:05 -05:00
link.h tipc: make link start event synchronous 2014-01-07 18:44:26 -05:00
log.c tipc: remove print_buf and deprecated log buffer code 2012-07-13 19:34:43 -04:00
Makefile tipc: introduce new TIPC server infrastructure 2013-06-17 15:53:00 -07:00
msg.c tipc: remove iovec length parameter from all sending functions 2013-10-18 13:20:42 -04:00
msg.h tipc: message reassembly using fragment chain 2013-11-07 18:30:11 -05:00
name_distr.c tipc: eliminate an unnecessary cast of node variable 2012-11-22 14:33:28 -05:00
name_distr.h
name_table.c tipc: remove all enabled flags from all tipc components 2014-02-22 00:00:15 -05:00
name_table.h tipc: cosmetic realignment of function arguments 2013-06-17 15:53:01 -07:00
net.c tipc: change tipc_net_start routine return value type 2012-08-20 02:26:30 -07:00
net.h tipc: change tipc_net_start routine return value type 2012-08-20 02:26:30 -07:00
netlink.c tipc: remove all enabled flags from all tipc components 2014-02-22 00:00:15 -05:00
node.c tipc: rename functions related to link failover and improve comments 2014-01-07 18:44:25 -05:00
node.h tipc: remove 'has_redundant_link' flag from STATE link protocol messages 2014-01-07 18:44:25 -05:00
node_subscr.c tipc: cosmetic realignment of function arguments 2013-06-17 15:53:01 -07:00
node_subscr.h tipc: compress out gratuitous extra carriage returns 2012-04-30 15:53:56 -04:00
port.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
port.h tipc: fix deadlock during socket release 2013-12-29 22:24:07 -05:00
ref.c tipc: remove all enabled flags from all tipc components 2014-02-22 00:00:15 -05:00
ref.h tipc: cleanup function namespace 2010-10-16 11:13:24 -07:00
server.c tipc: fix connection refcount leak 2014-03-06 14:46:23 -05:00
server.h tipc: remove all enabled flags from all tipc components 2014-02-22 00:00:15 -05:00
socket.c tipc: avoid to unnecessary process switch under non-block mode 2014-03-06 14:46:23 -05:00
subscr.c tipc: allow connection shutdown callback to be invoked in advance 2014-03-06 14:46:23 -05:00
subscr.h tipc: cosmetic realignment of function arguments 2013-06-17 15:53:01 -07:00
sysctl.c tipc: change socket buffer overflow control to respect sk_rcvbuf 2013-06-17 15:53:00 -07:00