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authorVincent Guittot <vincent.guittot@linaro.org>2018-09-25 12:17:42 +0300
committerIngo Molnar <mingo@kernel.org>2018-10-02 10:45:00 +0300
commit11d4afd4ff667f9b6178ee8c142c36cb78bd84db (patch)
treea327db3eb28ed3e0b023525528ebf3d9abdfe2c6 /init
parentb429f71bca5a4ddd914350a39572692e2ea211e0 (diff)
downloadlinux-11d4afd4ff667f9b6178ee8c142c36cb78bd84db.tar.xz
sched/pelt: Fix warning and clean up IRQ PELT config
Create a config for enabling irq load tracking in the scheduler. irq load tracking is useful only when irq or paravirtual time is accounted but it's only possible with SMP for now. Also use __maybe_unused to remove the compilation warning in update_rq_clock_task() that has been introduced by: 2e62c4743adc ("sched/fair: Remove #ifdefs from scale_rt_capacity()") Suggested-by: Ingo Molnar <mingo@redhat.com> Reported-by: Dou Liyang <douly.fnst@cn.fujitsu.com> Reported-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bp@alien8.de Cc: dou_liyang@163.com Fixes: 2e62c4743adc ("sched/fair: Remove #ifdefs from scale_rt_capacity()") Link: http://lkml.kernel.org/r/1537867062-27285-1-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 1e234e2f1cba..317d5ccb5191 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -415,6 +415,11 @@ config IRQ_TIME_ACCOUNTING
If in doubt, say N here.
+config HAVE_SCHED_AVG_IRQ
+ def_bool y
+ depends on IRQ_TIME_ACCOUNTING || PARAVIRT_TIME_ACCOUNTING
+ depends on SMP
+
config BSD_PROCESS_ACCT
bool "BSD Process Accounting"
depends on MULTIUSER