From 60f1d2893ee6de65cdea609c84950b133e76a769 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 29 May 2018 16:19:14 +0000 Subject: powerpc/time: inline arch_vtime_task_switch() arch_vtime_task_switch() is a small function which is called only from vtime_common_task_switch(), so it is worth inlining Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/cputime.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm/cputime.h') diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h index 99b541865d8d..bc4903badb3f 100644 --- a/arch/powerpc/include/asm/cputime.h +++ b/arch/powerpc/include/asm/cputime.h @@ -47,9 +47,23 @@ static inline unsigned long cputime_to_usecs(const cputime_t ct) * has to be populated in the new task */ #ifdef CONFIG_PPC64 +#define get_accounting(tsk) (&get_paca()->accounting) static inline void arch_vtime_task_switch(struct task_struct *tsk) { } #else -void arch_vtime_task_switch(struct task_struct *tsk); +#define get_accounting(tsk) (&task_thread_info(tsk)->accounting) +/* + * Called from the context switch with interrupts disabled, to charge all + * accumulated times to the current process, and to prepare accounting on + * the next process. + */ +static inline void arch_vtime_task_switch(struct task_struct *prev) +{ + struct cpu_accounting_data *acct = get_accounting(current); + struct cpu_accounting_data *acct0 = get_accounting(prev); + + acct->starttime = acct0->starttime; + acct->startspurr = acct0->startspurr; +} #endif #endif /* __KERNEL__ */ -- cgit v1.2.3