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Groups > linux.kernel > #1536614

[PATCH 04/10] cputime: Export account_guest_time

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In order to prepare for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE to delay
cputime accounting to the tick, let's allow archs to account cputime
directly to gtime.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 include/linux/kernel_stat.h | 1 +
 kernel/sched/cputime.c      | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 544aa86..1cee310 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -79,6 +79,7 @@ static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
 }
 
 extern void account_user_time(struct task_struct *, cputime_t);
+extern void account_guest_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);
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 0e6ea60..dd67770 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -151,7 +151,7 @@ void account_user_time(struct task_struct *p, cputime_t cputime)
  * @p: the process that the cpu time gets accounted to
  * @cputime: the cpu time spent in virtual machine since the last update
  */
-static void account_guest_time(struct task_struct *p, cputime_t cputime)
+void account_guest_time(struct task_struct *p, cputime_t cputime)
 {
 	u64 *cpustat = kcpustat_this_cpu->cpustat;
 
-- 
2.7.4

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[PATCH 00/10] vtime: Delay cputime accounting to tick Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [FIX][PATCH 02/10] ia64: Fix wrong start cputime assignment on task switch Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [PATCH 09/10] s390/cputime: delayed accounting of system time Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
    Re: [PATCH 09/10] s390/cputime: delayed accounting of system time Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-10 02:50 +0100
  [PATCH 06/10] powerpc: Migrate stolen_time field to accounting structure Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [PATCH 03/10] cputime: Allow accounting system time using cpustat index Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [PATCH 10/10] vtime: Rename vtime_account_user() to vtime_flush() Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [PATCH 07/10] powerpc/vtime: Accumulate cputime and account only on tick/task switch Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [PATCH 08/10] ia64: Accumulate cputime and account only on tick/task switch Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  [PATCH 04/10] cputime: Export account_guest_time Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 03:40 +0100
  Re: [PATCH 00/10] vtime: Delay cputime accounting to tick Paul Mackerras <paulus@ozlabs.org> - 2016-12-06 05:30 +0100
    Re: [PATCH 00/10] vtime: Delay cputime accounting to tick Martin Schwidefsky <schwidefsky@de.ibm.com> - 2016-12-06 08:10 +0100
    Re: [PATCH 00/10] vtime: Delay cputime accounting to tick Frederic Weisbecker <fweisbec@gmail.com> - 2016-12-06 15:40 +0100
  Re: [PATCH 00/10] vtime: Delay cputime accounting to tick Christian Borntraeger <borntraeger@de.ibm.com> - 2016-12-06 09:50 +0100

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