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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-05-29 18:19:14 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-06-03 16:39:20 +0200 |
| commit | 60f1d2893ee6de65cdea609c84950b133e76a769 (patch) | |
| tree | 2df14a87991219868fe6b5f62276733ef707c3d7 /arch/powerpc/include/asm/cputime.h | |
| parent | powerpc/Makefile: set -mcpu=860 flag for the 8xx (diff) | |
| download | linux-60f1d2893ee6de65cdea609c84950b133e76a769.tar.xz linux-60f1d2893ee6de65cdea609c84950b133e76a769.zip | |
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 <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/cputime.h')
| -rw-r--r-- | arch/powerpc/include/asm/cputime.h | 16 |
1 files changed, 15 insertions, 1 deletions
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__ */ |