extern void cache_flush(void);
extern void cache_purge(struct cache_detail *detail);
#define NEVER (0x7FFFFFFF)
+extern void __init cache_initialize(void);
extern int cache_register(struct cache_detail *cd);
extern void cache_unregister(struct cache_detail *cd);
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 = seconds_since_boot() - 1;
+ detail->nextcheck = seconds_since_boot();
+}
#endif /* _LINUX_SUNRPC_CACHE_H_ */