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Oleg Nesterov 83c22520c5 flush_cpu_workqueue: don't flush an empty ->worklist 
Now when we have ->current_work we can avoid adding a barrier and waiting
for its completition when cwq's queue is empty.

Note: this change is also useful if we change flush_workqueue() to also
check the dead CPUs.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Gautham Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:51 -07:00
..
irq
Fix Linuxdoc comment
2007-05-09 12:30:48 -07:00
power
PM: Separate hibernation code from suspend code
2007-05-09 12:30:48 -07:00
time
Fix printk format warnings in timer_list.c
2007-05-09 12:30:50 -07:00
.gitignore
…
acct.c
…
audit.c
audit: add spaces on either side of case "..." operator.
2007-05-08 11:15:09 -07:00
audit.h
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auditfilter.c
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auditsc.c
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capability.c
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compat.c
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configs.c
use simple_read_from_buffer in kernel/
2007-05-09 12:30:49 -07:00
cpu.c
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cpuset.c
use simple_read_from_buffer in kernel/
2007-05-09 12:30:49 -07:00
delayacct.c
KMEM_CACHE(): simplify slab cache creation
2007-05-07 12:12:55 -07:00
die_notifier.c
move die notifier handling to common code
2007-05-08 11:15:04 -07:00
dma.c
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exec_domain.c
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exit.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
extable.c
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fork.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
futex_compat.c
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futex.c
futex: restartable futex_wait
2007-05-08 11:15:03 -07:00
hrtimer.c
export hrtimer_forward
2007-05-08 11:15:15 -07:00
itimer.c
The scheduled -EINVAL for invalid timevals in setitimer
2007-05-08 11:15:13 -07:00
kallsyms.c
kallsyms: cleanup: use seq_release_private() where appropriate
2007-05-08 11:15:09 -07:00
Kconfig.hz
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Kconfig.preempt
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kexec.c
kdump/kexec: calculate note size at compile time
2007-05-08 11:15:07 -07:00
kfifo.c
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kmod.c
Fix kevent's childs priority greediness
2007-05-08 11:15:07 -07:00
kprobes.c
Kprobes: The ON/OFF knob thru debugfs
2007-05-08 11:15:19 -07:00
ksysfs.c
remove "struct subsystem" as it is no longer needed
2007-05-02 18:57:59 -07:00
kthread.c
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latency.c
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lockdep_internals.h
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lockdep_proc.c
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lockdep.c
lockdep: removed unused ip argument in mark_lock & mark_held_locks
2007-05-08 11:15:13 -07:00
Makefile
move die notifier handling to common code
2007-05-08 11:15:04 -07:00
module.c
Fix race between cat /proc/slab_allocators and rmmod
2007-05-08 11:15:08 -07:00
mutex-debug.c
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mutex-debug.h
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mutex.c
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mutex.h
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nsproxy.c
Merge sys_clone()/sys_unshare() nsproxy and namespace handling
2007-05-08 11:15:00 -07:00
panic.c
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params.c
kernel/params.c: fix lying comment for param_array()
2007-05-08 11:15:08 -07:00
pid.c
Merge sys_clone()/sys_unshare() nsproxy and namespace handling
2007-05-08 11:15:00 -07:00
posix-cpu-timers.c
Introduce a handy list_first_entry macro
2007-05-08 11:15:11 -07:00
posix-timers.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
printk.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
profile.c
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ptrace.c
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rcupdate.c
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rcutorture.c
rcutorture: Remove redundant assignment to cur_ops in for loop
2007-05-08 11:15:17 -07:00
relay.c
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resource.c
libata/IDE: remove combined mode quirk
2007-04-28 14:15:59 -04:00
rtmutex_common.h
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rtmutex-debug.c
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rtmutex-debug.h
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rtmutex-tester.c
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rtmutex.c
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rtmutex.h
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rwsem.c
Lockdep treats down_write_trylock like regular down_write
2007-05-08 11:15:09 -07:00
sched.c
revert 'sched: redundant reschedule when set_user_nice() boosts a prio of a task from the "expired" array'
2007-05-08 20:41:15 -07:00
seccomp.c
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signal.c
Move sig_kernel_* et al macros to linux/signal.h
2007-05-09 12:30:49 -07:00
softirq.c
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softlockup.c
add touch_all_softlockup_watchdogs()
2007-05-08 11:15:06 -07:00
spinlock.c
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srcu.c
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stacktrace.c
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stop_machine.c
Use stop_machine_run in the Intel RNG driver
2007-05-08 11:15:00 -07:00
sys_ni.c
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sys.c
PM: Separate hibernation code from suspend code
2007-05-09 12:30:48 -07:00
sysctl.c
proc: maps protection
2007-05-08 11:15:02 -07:00
taskstats.c
KMEM_CACHE(): simplify slab cache creation
2007-05-07 12:12:55 -07:00
time.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
timer.c
Introduce a handy list_first_entry macro
2007-05-08 11:15:11 -07:00
tsacct.c
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uid16.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
user.c
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utsname_sysctl.c
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utsname.c
Merge sys_clone()/sys_unshare() nsproxy and namespace handling
2007-05-08 11:15:00 -07:00
wait.c
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workqueue.c
flush_cpu_workqueue: don't flush an empty ->worklist
2007-05-09 12:30:51 -07:00