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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 10:43:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 10:43:39 -0700
commit0b981cb94bc63a2d0e5eccccdca75fe57643ffce (patch)
tree966ad6e6807fd1041d9962c9904e032a5ab07a65 /arch/Kconfig
parent4cba3335826cbb36a218c3f5a1387e2c7c7ca9aa (diff)
parentfdf9c356502ae02238efcdf90cefd7b473a63fd4 (diff)
downloadlinux-0b981cb94bc63a2d0e5eccccdca75fe57643ffce.tar.gz
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler changes from Ingo Molnar: "Continued quest to clean up and enhance the cputime code by Frederic Weisbecker, in preparation for future tickless kernel features. Other than that, smallish changes." Fix up trivial conflicts due to additions next to each other in arch/{x86/}Kconfig * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) cputime: Make finegrained irqtime accounting generally available cputime: Gather time/stats accounting config options into a single menu ia64: Reuse system and user vtime accounting functions on task switch ia64: Consolidate user vtime accounting vtime: Consolidate system/idle context detection cputime: Use a proper subsystem naming for vtime related APIs sched: cpu_power: enable ARCH_POWER sched/nohz: Clean up select_nohz_load_balancer() sched: Fix load avg vs. cpu-hotplug sched: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW sched: Fix nohz_idle_balance() sched: Remove useless code in yield_to() sched: Add time unit suffix to sched sysctl knobs sched/debug: Limit sd->*_idx range on sysctl sched: Remove AFFINE_WAKEUPS feature flag s390: Remove leftover account_tick_vtime() header cputime: Consolidate vtime handling on context switch sched: Move cputime code to its own file cputime: Generalize CONFIG_VIRT_CPU_ACCOUNTING tile: Remove SD_PREFER_LOCAL leftover ...
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 1a7b468abf4..a62965d057f 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -304,4 +304,13 @@ config HAVE_RCU_USER_QS
are already protected inside rcu_irq_enter/rcu_irq_exit() but
preemption or signal handling on irq exit still need to be protected.
+config HAVE_VIRT_CPU_ACCOUNTING
+ bool
+
+config HAVE_IRQ_TIME_ACCOUNTING
+ bool
+ help
+ Archs need to ensure they use a high enough resolution clock to
+ support irq time accounting and then call enable_sched_clock_irqtime().
+
source "kernel/gcov/Kconfig"