Thomas Gleixner 33b7cfcb34 tick: Cleanup NOHZ per cpu data on cpu down ... commit 4b0c0f294f upstream. Prarit reported a crash on CPU offline/online. The reason is that on CPU down the NOHZ related per cpu data of the dead cpu is not cleaned up. If at cpu online an interrupt happens before the per cpu tick device is registered the irq_enter() check potentially sees stale data and dereferences a NULL pointer. Cleanup the data after the cpu is dead. Reported-by: Prarit Bhargava <prarit@redhat.com> Cc: Mike Galbraith <bitbucket@online.de> Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1305031451561.2886@ionos Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-05-19 10:54:40 -07:00
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alarmtimer.c	alarmtimer: Don't call rtc_timer_init() when CONFIG_RTC_CLASS=n	2012-03-24 12:46:23 +01:00
clockevents.c	Revert "clockevents: Set noop handler in clockevents_exchange_device()"	2011-12-30 13:24:40 -08:00
clocksource.c	kernel-time: fix s/then/than/ spelling errors	2012-03-23 16:49:21 -07:00
jiffies.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
Kconfig	tick: Document TICK_ONESHOT config option	2012-03-31 12:45:43 +02:00
Makefile	timers: Introduce in-kernel alarm-timer interface	2011-04-26 14:01:44 -07:00
ntp.c	ntp: Fix STA_INS/DEL clearing bug	2012-07-29 08:04:18 -07:00
posix-clock.c	kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure	2011-10-31 19:30:05 -04:00
tick-broadcast.c	clockevents: Set dummy handler on CPU_DEAD shutdown	2013-05-07 19:51:56 -07:00
tick-common.c	clockevents: Set dummy handler on CPU_DEAD shutdown	2013-05-07 19:51:56 -07:00
tick-internal.h	clockevents: Make minimum delay adjustments configurable	2011-09-08 11:10:56 +02:00
tick-oneshot.c	clockevents: Make minimum delay adjustments configurable	2011-09-08 11:10:56 +02:00
tick-sched.c	tick: Cleanup NOHZ per cpu data on cpu down	2013-05-19 10:54:40 -07:00
timecompare.c	time: Use ARRAY_SIZE macro in timecompare.c	2010-10-21 17:30:06 +02:00
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	timekeeping: Cast raw_interval to u64 to avoid shift overflow	2012-12-03 11:47:23 -08:00
timer_list.c	timer debug: Hide kernel addresses via %pK in /proc/timer_list	2011-02-12 14:11:56 +01:00
timer_stats.c	locking, timer_stats: Annotate table_lock as raw	2011-09-13 11:12:00 +02:00