diff options
| -rw-r--r-- | include/linux/timekeeper_internal.h | 36 | ||||
| -rw-r--r-- | kernel/time/Kconfig | 4 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 14 |
3 files changed, 34 insertions, 20 deletions
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h index a904d76..e1d558e 100644 --- a/include/linux/timekeeper_internal.h +++ b/include/linux/timekeeper_internal.h @@ -66,16 +66,38 @@ struct timekeeper { seqlock_t lock; }; +static inline struct timespec tk_xtime(struct timekeeper *tk) +{ + struct timespec ts; + + ts.tv_sec = tk->xtime_sec; + ts.tv_nsec = (long)(tk->xtime_nsec >> tk->shift); + return ts; +} + + +#ifdef CONFIG_GENERIC_TIME_VSYSCALL + +extern void update_vsyscall(struct timekeeper *tk); +extern void update_vsyscall_tz(void); -#ifdef CONFIG_GENERIC_TIME_VSYSCALL_OLD -extern void -update_vsyscall_old(struct timespec *ts, struct timespec *wtm, - struct clocksource *c, u32 mult); +#elif defined(CONFIG_GENERIC_TIME_VSYSCALL_OLD) + +extern void update_vsyscall_old(struct timespec *ts, struct timespec *wtm, + struct clocksource *c, u32 mult); extern void update_vsyscall_tz(void); + +static inline void update_vsyscall(struct timekeeper *tk) +{ + struct timespec xt; + + xt = tk_xtime(tk); + update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult); +} + #else -static inline void -update_vsyscall_old(struct timespec *ts, struct timespec *wtm, - struct clocksource *c, u32 mult) + +static inline void update_vsyscall(struct timekeeper *tk) { } static inline void update_vsyscall_tz(void) diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index 489c861..8601f0d 100644 --- a/kernel/time/Kconfig +++ b/kernel/time/Kconfig @@ -13,6 +13,10 @@ config ARCH_CLOCKSOURCE_DATA bool # Timekeeping vsyscall support +config GENERIC_TIME_VSYSCALL + bool + +# Timekeeping vsyscall support config GENERIC_TIME_VSYSCALL_OLD bool diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 7c28513..ce61801 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -42,15 +42,6 @@ static inline void tk_normalize_xtime(struct timekeeper *tk) } } -static struct timespec tk_xtime(struct timekeeper *tk) -{ - struct timespec ts; - - ts.tv_sec = tk->xtime_sec; - ts.tv_nsec = (long)(tk->xtime_nsec >> tk->shift); - return ts; -} - static void tk_set_xtime(struct timekeeper *tk, const struct timespec *ts) { tk->xtime_sec = ts->tv_sec; @@ -192,14 +183,11 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk) /* must hold write on timekeeper.lock */ static void timekeeping_update(struct timekeeper *tk, bool clearntp) { - struct timespec xt; - if (clearntp) { tk->ntp_error = 0; ntp_clear(); } - xt = tk_xtime(tk); - update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult); + update_vsyscall(tk); } /** |
