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Diffstat (limited to 'arch/powerpc/include/asm/cputime.h')
-rw-r--r--arch/powerpc/include/asm/cputime.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h
index e2452550bcb1..2dfd4fc41f3e 100644
--- a/arch/powerpc/include/asm/cputime.h
+++ b/arch/powerpc/include/asm/cputime.h
@@ -90,11 +90,10 @@ static inline void setup_cputime_one_jiffy(void)
static inline cputime64_t jiffies64_to_cputime64(const u64 jif)
{
u64 ct;
- u64 sec;
+ u64 sec = jif;
/* have to be a little careful about overflow */
- ct = jif % HZ;
- sec = jif / HZ;
+ ct = do_div(sec, HZ);
if (ct) {
ct *= tb_ticks_per_sec;
do_div(ct, HZ);
@@ -230,7 +229,16 @@ static inline cputime_t clock_t_to_cputime(const unsigned long clk)
#define cputime64_to_clock_t(ct) cputime_to_clock_t((cputime_t)(ct))
+/*
+ * PPC64 uses PACA which is task independent for storing accounting data while
+ * PPC32 uses struct thread_info, therefore at task switch the accounting data
+ * has to be populated in the new task
+ */
+#ifdef CONFIG_PPC64
static inline void arch_vtime_task_switch(struct task_struct *tsk) { }
+#else
+void arch_vtime_task_switch(struct task_struct *tsk);
+#endif
#endif /* __KERNEL__ */
#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */