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authorFrederic Weisbecker <fweisbec@gmail.com>2017-01-05 20:11:43 +0300
committerIngo Molnar <mingo@kernel.org>2017-01-14 11:54:11 +0300
commitc31cc6a5187e8b09ccee34f81728a90f80e872e7 (patch)
tree141b28194f4c518043ef42a30493fe9c3501fcd2 /include/linux/kernel_stat.h
parent8388d21468e7e7656867b67ab2ec98a78c9ad799 (diff)
downloadlinux-c31cc6a5187e8b09ccee34f81728a90f80e872e7.tar.xz
sched/cputime: Allow accounting system time using cpustat index
In order to prepare for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y to delay cputime accounting to the tick, let's provide APIs to account system time to precise contexts: hardirq, softirq, pure system, ... Inspired-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1483636310-6557-4-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/kernel_stat.h')
-rw-r--r--include/linux/kernel_stat.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 00f776816aa3..14b63bb714d4 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -80,6 +80,8 @@ static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
extern void account_user_time(struct task_struct *, cputime_t);
extern void account_system_time(struct task_struct *, int, cputime_t);
+extern void account_system_index_time(struct task_struct *, cputime_t,
+ enum cpu_usage_stat);
extern void account_steal_time(cputime_t);
extern void account_idle_time(cputime_t);