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Peter Zijlstra 3310d4d38f nohz: Fix nohz ratelimit ... Chris Wedgwood reports that 39c0cbe (sched: Rate-limit nohz) causes a serial console regression, unresponsiveness, and indeed it does. The reason is that the nohz code is skipped even when the tick was already stopped before the nohz_ratelimit(cpu) condition changed. Move the nohz_ratelimit() check to the other conditions which prevent long idle sleeps. Reported-by: Chris Wedgwood <cw@f00f.org> Tested-by: Brian Bloniarz <bmb@athenacr.com> Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Greg KH <gregkh@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Jef Driesen <jefdriesen@telenet.be> LKML-Reference: <1276790557.27822.516.camel@twins> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2010-06-17 19:37:29 +02:00
..
Kconfig	Kconfig: eliminate "def_bool n" constructs	2008-10-16 11:21:31 -07:00
Makefile	time: add function to convert between calendar time and broken-down time for universal use	2009-09-24 07:20:56 -07:00
clockevents.c	clockevent: Don't remove broadcast device when cpu is dead	2010-01-18 14:44:50 +01:00
clocksource.c	clocksource: Add clocksource_register_hz/khz interface	2010-05-10 14:24:26 +02:00
jiffies.c	clocksource: Cleanup clocksource selection	2009-08-15 10:55:46 +02:00
ntp.c	ntp: Make time_adjust static	2010-03-23 17:19:37 +01:00
tick-broadcast.c	clockevents: Convert to raw_spinlock	2009-12-14 23:55:34 +01:00
tick-common.c	clockevents: Convert to raw_spinlock	2009-12-14 23:55:34 +01:00
tick-internal.h	clockevents: Make tick_device_lock static	2009-12-14 23:55:34 +01:00
tick-oneshot.c	clockevents: Sanitize min_delta_ns adjustment and prevent overflows	2010-03-12 19:10:29 +01:00
tick-sched.c	nohz: Fix nohz ratelimit	2010-06-17 19:37:29 +02:00
timecompare.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
timeconv.c	time: add function to convert between calendar time and broken-down time for universal use	2009-09-24 07:20:56 -07:00
timekeeping.c	Merge branch 'linus' into timers/core	2010-05-10 14:20:42 +02:00
timer_list.c	sched: Intoduce get_cpu_iowait_time_us()	2010-05-09 19:35:27 +02:00
timer_stats.c	hrtimers: Convert to raw_spinlocks	2009-12-14 23:55:34 +01:00