Oleg Nesterov 128fb95650 [PATCH] taskstats_exit_alloc: optimize/simplify ... If there are no listeners, every task does unneeded kmem_cache alloc/free on exit. We don't need listeners->sem for 'if (!list_empty())' check. Yes, we may have a false positive, but this doesn't differ from the case when the listener is unregistered after we drop the semaphore. So we don't need to do allocation beforehand. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Balbir Singh <balbir@in.ibm.com> Acked-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-12-07 08:39:34 -08:00
..
irq	Don't call "note_interrupt()" with irq descriptor lock held	2006-11-22 09:32:06 -08:00
power	[PATCH] Export pm_suspend for the shared APM emulation	2006-12-07 08:39:32 -08:00
time	[PATCH] time_adjust cleared before use	2006-10-28 11:30:55 -07:00
.gitignore
acct.c
audit.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
audit.h
auditfilter.c
auditsc.c	[PATCH] severing skbuff.h -> highmem.h	2006-12-04 02:00:29 -05:00
capability.c
compat.c	[PATCH] Create compat_sys_migrate_pages	2006-11-03 12:27:59 -08:00
configs.c
cpu.c	[PATCH] suspend: don't change cpus_allowed for task initiating the suspend	2006-12-07 08:39:28 -08:00
cpuset.c	[PATCH] cpuset: minor code refinements	2006-12-07 08:39:32 -08:00
delayacct.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
dma.c
exec_domain.c
exit.c	[PATCH] taskstats_tgid_free: fix usage	2006-10-28 11:30:54 -07:00
extable.c
fork.c	[PATCH] Disable CLONE_CHILD_CLEARTID for abnormal exit	2006-12-07 08:39:33 -08:00
futex.c	[PATCH] mm: pagefault_{disable,enable}()	2006-12-07 08:39:21 -08:00
futex_compat.c	[PATCH] __user annotations: futex	2006-10-10 15:37:22 -07:00
hrtimer.c
itimer.c
kallsyms.c	[PATCH] /proc/kallsyms reports lower-case types for some non-exported symbols	2006-12-07 08:39:31 -08:00
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kmod.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	2006-12-05 14:37:56 +00:00
kprobes.c
ksysfs.c
kthread.c	WorkStruct: Pass the work_struct pointer instead of context data	2006-11-22 14:55:48 +00:00
latency.c	[PATCH] severing module.h->sched.h	2006-12-04 02:00:22 -05:00
lockdep.c	[PATCH] lockdep: misc fixes in lockdep.c	2006-12-07 08:39:33 -08:00
lockdep_internals.h
lockdep_proc.c
Makefile
module.c	[PATCH] severing module.h->sched.h	2006-12-04 02:00:22 -05:00
mutex-debug.c	Lockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass()	2006-10-11 01:45:14 -04:00
mutex-debug.h
mutex.c
mutex.h
nsproxy.c	[PATCH] kernel/nsproxy.c: use kmemdup()	2006-10-20 10:26:44 -07:00
panic.c
params.c
pid.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
posix-cpu-timers.c	[PATCH] posix-cpu-timers: prevent signal delivery starvation	2006-10-17 08:18:43 -07:00
posix-timers.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
printk.c	[PATCH] Add printk_timed_ratelimit()	2006-11-03 12:27:58 -08:00
profile.c	[PATCH] profile: fix uaccess handling	2006-12-07 08:39:33 -08:00
ptrace.c
rcupdate.c
rcutorture.c
relay.c	WorkStruct: make allyesconfig	2006-11-22 14:57:56 +00:00
resource.c
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
rtmutex.c
rtmutex.h
rtmutex_common.h
rwsem.c
sched.c	[PATCH] SysRq-X: show blocked tasks	2006-12-07 08:39:32 -08:00
seccomp.c
signal.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
softirq.c
softlockup.c
spinlock.c	[PATCH] lockdep: spin_lock_irqsave_nested()	2006-11-25 13:28:34 -08:00
srcu.c
stacktrace.c
stop_machine.c
sys.c	WorkStruct: Pass the work_struct pointer instead of context data	2006-11-22 14:55:48 +00:00
sys_ni.c	[PATCH] Create compat_sys_migrate_pages	2006-11-03 12:27:59 -08:00
sysctl.c	[PATCH] new scheme to preempt swap token	2006-12-07 08:39:21 -08:00
taskstats.c	[PATCH] taskstats_exit_alloc: optimize/simplify	2006-12-07 08:39:34 -08:00
time.c
timer.c
tsacct.c	[PATCH] xacct_add_tsk: fix pure theoretical ->mm use-after-free	2006-10-30 12:08:41 -08:00
uid16.c
unwind.c	[PATCH] x86-64: work around gcc4 issue with -Os in Dwarf2 stack unwind	2006-11-28 20:12:59 +01:00
user.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
utsname.c
wait.c
workqueue.c	[PATCH] Support for freezeable workqueues	2006-12-07 08:39:29 -08:00