Rainer Weikusat 77b75f4d8c unix: use wq_has_sleeper in unix_dgram_recvmsg ...

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>

Signed-off-by: David S. Miller <davem@davemloft.net>

2015-12-01 14:57:43 -05:00

..

af_unix.c

unix: use wq_has_sleeper in unix_dgram_recvmsg

2015-12-01 14:57:43 -05:00

diag.c

VFS: net/unix: d_backing_inode() annotations

2015-04-15 15:06:56 -04:00

garbage.c

net: unix: garbage: fixed several comment and whitespace style issues

2015-04-23 13:15:20 -04:00

Kconfig

net: Default UDP and UNIX diag to 'n'.

2012-01-07 12:13:06 -08:00

Makefile

unix_diag: Write it into kbuild

2011-12-16 13:48:29 -05:00

sysctl_net_unix.c

net: Convert uses of typedef ctl_table to struct ctl_table

2013-06-13 02:36:09 -07:00