Frederic Weisbecker 3f4724ea85 cputime: Allow dynamic switch between tick/virtual based cputime accounting ... Allow to dynamically switch between tick and virtual based cputime accounting. This way we can provide a kind of "on-demand" virtual based cputime accounting. In this mode, the kernel relies on the context tracking subsystem to dynamically probe on kernel boundaries. This is in preparation for being able to stop the timer tick in more places than just the idle state. Doing so will depend on CONFIG_VIRT_CPU_ACCOUNTING_GEN which makes it possible to account the cputime without the tick by hooking on kernel/user boundaries. Depending whether the tick is stopped or not, we can switch between tick and vtime based accounting anytime in order to minimize the overhead associated to user hooks. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de>		2013-01-27 19:23:29 +01:00
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alarmtimer.c	alarmtimer: Rename alarmtimer_remove to alarmtimer_dequeue	2012-09-24 12:38:03 -04:00
clockevents.c	timekeeping: Add suspend and resume of clock event devices	2012-09-04 01:36:01 +02:00
clocksource.c	kernel-time: fix s/then/than/ spelling errors	2012-03-23 16:49:21 -07:00
jiffies.c	time: Kill xtime_lock, replacing it with jiffies_lock	2012-11-13 14:08:23 -05:00
Kconfig	time: Introduce new GENERIC_TIME_VSYSCALL	2012-09-24 12:38:08 -04:00
Makefile	time: remove the timecompare code.	2012-11-01 11:41:35 -04:00
ntp.c	time/jiffies: Rename ACTHZ to SHIFTED_HZ	2012-07-31 17:09:12 +02:00
posix-clock.c	kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure	2011-10-31 19:30:05 -04:00
tick-broadcast.c	tick: Fix the spurious broadcast timer ticks after resume	2012-04-19 21:27:50 +02:00
tick-common.c	time: Kill xtime_lock, replacing it with jiffies_lock	2012-11-13 14:08:23 -05:00
tick-internal.h	time: Kill xtime_lock, replacing it with jiffies_lock	2012-11-13 14:08:23 -05:00
tick-oneshot.c	clockevents: Make minimum delay adjustments configurable	2011-09-08 11:10:56 +02:00
tick-sched.c	cputime: Allow dynamic switch between tick/virtual based cputime accounting	2013-01-27 19:23:29 +01:00
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 tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-12-13 15:31:08 -08:00
timer_list.c	nohz: Rename ts->idle_tick to ts->last_tick	2012-06-11 20:07:17 +02:00
timer_stats.c	locking, timer_stats: Annotate table_lock as raw	2011-09-13 11:12:00 +02:00