#ifndef _TIMEKEEPING_INTERNAL_H #define _TIMEKEEPING_INTERNAL_H /* * timekeeping debug functions */ #include #include #ifdef CONFIG_DEBUG_FS extern void tk_debug_account_sleep_time(struct timespec64 *t); #else #define tk_debug_account_sleep_time(x) #endif #ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE static inline u64 clocksource_delta(u64 now, u64 last, u64 mask) { u64 ret = (now - last) & mask; /* * Prevent time going backwards by checking the MSB of mask in * the result. If set, return 0. */ return ret & ~(mask >> 1) ? 0 : ret; } #else static inline u64 clocksource_delta(u64 now, u64 last, u64 mask) { return (now - last) & mask; } #endif extern time64_t __ktime_get_real_seconds(void); #endif /* _TIMEKEEPING_INTERNAL_H */ et-next.git
net-next plumbingsTobias Klauser
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