diff options
Diffstat (limited to 'include/linux/sunrpc/cache.h')
| -rw-r--r-- | include/linux/sunrpc/cache.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index 0e1febf4e5bc..ece432b7f87f 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -218,20 +218,42 @@ static inline int get_int(char **bpp, int *anint) return 0; } +/* + * timestamps kept in the cache are expressed in seconds + * since boot. This is the best for measuring differences in + * real time. + */ +static inline time_t seconds_since_boot(void) +{ + struct timespec boot; + getboottime(&boot); + return get_seconds() - boot.tv_sec; +} + +static inline time_t convert_to_wallclock(time_t sinceboot) +{ + struct timespec boot; + getboottime(&boot); + return boot.tv_sec + sinceboot; +} + static inline time_t get_expiry(char **bpp) { int rv; + struct timespec boot; + if (get_int(bpp, &rv)) return 0; if (rv < 0) return 0; - return rv; + getboottime(&boot); + return rv - boot.tv_sec; } static inline void sunrpc_invalidate(struct cache_head *h, struct cache_detail *detail) { - h->expiry_time = get_seconds() - 1; - detail->nextcheck = get_seconds(); + h->expiry_time = seconds_since_boot() - 1; + detail->nextcheck = seconds_since_boot(); } #endif /* _LINUX_SUNRPC_CACHE_H_ */ |