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sched/cputime: Export account_guest_time()

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

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/1483636310-6557-5-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Frederic Weisbecker
2017-01-05 18:11:44 +01:00
committed by Ingo Molnar
parent c31cc6a518
commit 1213699ab4
2 changed files with 2 additions and 1 deletions
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1
include/linux/kernel_stat.h
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@@ -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_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_time(struct task_struct *, int, cputime_t);
extern void account_system_index_time(struct task_struct *, cputime_t, extern void account_system_index_time(struct task_struct *, cputime_t,
enum cpu_usage_stat); enum cpu_usage_stat);

2
kernel/sched/cputime.c
View File

@@ -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 * @p: the process that the cpu time gets accounted to
* @cputime: the cpu time spent in virtual machine since the last update * @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; u64 *cpustat = kcpustat_this_cpu->cpustat;