*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/version.h>
+#include <linux/jiffies.h>
+#include <linux/types.h>
#include <linux/time.h>
#include <asm/div64.h>
/*
- * post 2.5 kernels.
- */
-
-#include <linux/jiffies.h>
-
-/*
* Generic kernel stuff
*/
typedef unsigned long cfs_time_t; /* jiffies */
typedef long cfs_duration_t;
-typedef cycles_t cfs_cycles_t;
-#define timespec64 timespec
-#define ktime_get_real_ts64 ktime_get_real_ts
+#ifndef HAVE_TIMESPEC64
+
+typedef __s64 time64_t;
+
+#if __BITS_PER_LONG == 64
+
+# define timespec64 timespec
+
+static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
+{
+ return ts;
+}
+
+static inline struct timespec timespec64_to_timespec(const struct timespec64 ts)
+{
+ return ts;
+}
+
+#else
+struct timespec64 {
+ time64_t tv_sec; /* seconds */
+ long tv_nsec; /* nanoseconds */
+};
+
+static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
+{
+ struct timespec64 ret;
+
+ ret.tv_sec = ts.tv_sec;
+ ret.tv_nsec = ts.tv_nsec;
+ return ret;
+}
+
+static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
+{
+ struct timespec ret;
+
+ ret.tv_sec = (time_t)ts64.tv_sec;
+ ret.tv_nsec = ts64.tv_nsec;
+ return ret;
+}
+#endif /* __BITS_PER_LONG != 64 */
+
+#endif /* HAVE_TIMESPEC64 */
+
+#ifndef HAVE_KTIME_ADD
+# define ktime_add(lhs, rhs) ({ (ktime_t){ .tv64 = (lhs).tv64 + (rhs).tv64 }; })
+#endif /* !HAVE_KTIME_ADD */
+
+#ifndef HAVE_KTIME_AFTER
+static inline bool ktime_after(const ktime_t cmp1, const ktime_t cmp2)
+{
+ return cmp1.tv64 > cmp2.tv64;
+}
+#endif /* !HAVE_KTIME_AFTER */
+
+#ifndef HAVE_KTIME_GET_TS64
+void ktime_get_ts64(struct timespec64 *ts);
+#endif /* HAVE_KTIME_GET_TS */
+
+#ifndef HAVE_KTIME_GET_REAL_TS64
+void ktime_get_real_ts64(struct timespec64 *ts);
+#endif /* HAVE_KTIME_GET_REAL_TS */
+
+#ifndef HAVE_KTIME_GET_REAL_SECONDS
+time64_t ktime_get_real_seconds(void);
+#endif /* HAVE_KTIME_GET_REAL_SECONDS */
+
+#ifndef HAVE_KTIME_GET_SECONDS
+time64_t ktime_get_seconds(void);
+#endif /* HAVE_KTIME_GET_SECONDS */
+
+#ifdef NEED_KTIME_GET_REAL_NS
+static inline u64 ktime_get_real_ns(void)
+{
+ return ktime_to_ns(ktime_get_real());
+}
+#endif /* NEED_KTIME_GET_REAL_NS */
+
+#ifndef HAVE_KTIME_TO_TIMESPEC64
+static inline struct timespec64 ktime_to_timespec64(ktime_t kt)
+{
+ struct timespec ts = ns_to_timespec((kt).tv64);
+
+ return timespec_to_timespec64(ts);
+}
+#endif /* HAVE_KTIME_TO_TIMESPEC64 */
+
+#ifndef HAVE_TIMESPEC64_SUB
+static inline struct timespec64
+timespec64_sub(struct timespec64 later, struct timespec64 earlier)
+{
+ struct timespec diff;
+
+ diff = timespec_sub(timespec64_to_timespec(later),
+ timespec64_to_timespec(earlier));
+ return timespec_to_timespec64(diff);
+}
+#endif
+
+#ifndef HAVE_TIMESPEC64_TO_KTIME
+static inline ktime_t timespec64_to_ktime(struct timespec64 ts)
+{
+ return ktime_set(ts.tv_sec, ts.tv_nsec);
+}
+#endif
static inline int cfs_time_before(cfs_time_t t1, cfs_time_t t2)
{
/*
* One jiffy
*/
-#define CFS_TICK (1)
-
#define CFS_TIME_T "%lu"
#define CFS_DURATION_T "%ld"