Vasiliy Kulikov 298507d4d2 shm: optimize exit_shm() ... We may optimistically check .in_use == 0 without holding the rw_mutex: it's the common case, and if it's zero, there certainly won't be any segments associated with us. After taking the lock, the idr_for_each() will do the right thing, so we could now drop the re-check inside the lock without any real cost. But it won't hurt. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-08-03 14:45:55 -10:00
..
compat_mq.c	ipc: initialize structure memory to zero for compat functions	2010-10-27 18:03:13 -07:00
compat.c	ipc: initialize structure memory to zero for compat functions	2010-10-27 18:03:13 -07:00
ipc_sysctl.c	ipc: introduce shm_rmid_forced sysctl	2011-07-26 16:49:44 -07:00
ipcns_notifier.c	ipc: do not use a negative value to re-enable msgmni automatic recomputing	2008-07-25 10:53:42 -07:00
Makefile	Add generic sys_ipc wrapper	2010-03-12 15:52:32 -08:00
mq_sysctl.c	sysctl ipc: Remove dead binary sysctl support code.	2009-11-12 02:04:54 -08:00
mqueue.c	ipc/mqueue.c: fix mq_open() return value	2011-07-26 16:49:44 -07:00
msg.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
msgutil.c	userns: add a user namespace owner of ipc ns	2011-03-23 19:47:07 -07:00
namespace.c	ns proc: Add support for the ipc namespace	2011-05-10 14:35:47 -07:00
sem.c	ipc/sem.c: fix race with concurrent semtimedop() timeouts and IPC_RMID	2011-07-25 20:57:07 -07:00
shm.c	shm: optimize exit_shm()	2011-08-03 14:45:55 -10:00
syscall.c	ppc64 sys_ipc breakage in 2.6.34-rc2	2010-03-22 09:57:19 -07:00
util.c	ipc,rcu: Convert call_rcu(ipc_immediate_free) to kfree_rcu()	2011-07-20 14:10:16 -07:00
util.h	userns: user namespaces: convert several capable() calls	2011-03-23 19:47:08 -07:00