From: Rik van Riel <[email protected]> With the introduction of remote tick based sampling, we now have three ways of gathering time statistics: - local tick based sampling - vtime accounting (used natively on some architectures) - remote tick based sampling
On a system with remote tick based sampling, the housekeeping CPUs will still do local tick based sampling. This results in needing two macros for switching the timekeeping code. Signed-off-by: Rik van Riel <[email protected]> --- include/linux/vtime.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 4f5c1a3712e7..a587058c7967 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -17,6 +17,7 @@ struct task_struct; */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE static inline bool tick_accounting_disabled(void) { return true; } +static inline bool tick_accounting_remote(void) { return false; } #endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN @@ -29,10 +30,12 @@ static inline bool tick_accounting_disabled(void) return false; } +static inline bool tick_accounting_remote(void) { return true; } #endif /* CONFIG_VIRT_CPU_ACCOUNTING_GEN */ #ifndef CONFIG_VIRT_CPU_ACCOUNTING static inline bool tick_accounting_disabled(void) { return false; } +static inline bool tick_accounting_remote(void) { return false; } #endif /* !CONFIG_VIRT_CPU_ACCOUNTING */ -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
