diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
new file mode 100644
index 0000000..036c343
--- /dev/null
+++ b/include/linux/hrtimer.h
@@ -0,0 +1,331 @@
+/*
+ *  include/linux/hrtimer.h
+ *
+ *  hrtimers - High-resolution kernel timers
+ *
+ *   Copyright(C) 2005, Thomas Gleixner <tglx@linutronix.de>
+ *   Copyright(C) 2005, Red Hat, Inc., Ingo Molnar
+ *
+ *  data type definitions, declarations, prototypes
+ *
+ *  Started by: Thomas Gleixner and Ingo Molnar
+ *
+ *  For licencing details see kernel-base/COPYING
+ */
+#ifndef _LINUX_HRTIMER_H
+#define _LINUX_HRTIMER_H
+
+#include <linux/rbtree.h>
+#include <linux/ktime.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <linux/percpu.h>
+#include <linux/timer.h>
+#include <linux/timerqueue.h>
+
+struct hrtimer_clock_base;
+struct hrtimer_cpu_base;
+
+enum hrtimer_mode {
+	HRTIMER_MODE_ABS = 0x0,		
+	HRTIMER_MODE_REL = 0x1,		
+	HRTIMER_MODE_PINNED = 0x02,	
+	HRTIMER_MODE_ABS_PINNED = 0x02,
+	HRTIMER_MODE_REL_PINNED = 0x03,
+};
+
+enum hrtimer_restart {
+	HRTIMER_NORESTART,	
+	HRTIMER_RESTART,	
+};
+
+#define HRTIMER_STATE_INACTIVE	0x00
+#define HRTIMER_STATE_ENQUEUED	0x01
+#define HRTIMER_STATE_CALLBACK	0x02
+#define HRTIMER_STATE_MIGRATE	0x04
+
+struct hrtimer {
+	struct timerqueue_node		node;
+	ktime_t				_softexpires;
+	enum hrtimer_restart		(*function)(struct hrtimer *);
+	struct hrtimer_clock_base	*base;
+	unsigned long			state;
+#ifdef CONFIG_TIMER_STATS
+	int				start_pid;
+	void				*start_site;
+	char				start_comm[16];
+#endif
+};
+
+struct hrtimer_sleeper {
+	struct hrtimer timer;
+	struct task_struct *task;
+};
+
+struct hrtimer_clock_base {
+	struct hrtimer_cpu_base	*cpu_base;
+	int			index;
+	clockid_t		clockid;
+	struct timerqueue_head	active;
+	ktime_t			resolution;
+	ktime_t			(*get_time)(void);
+	ktime_t			softirq_time;
+	ktime_t			offset;
+};
+
+enum  hrtimer_base_type {
+	HRTIMER_BASE_MONOTONIC,
+	HRTIMER_BASE_REALTIME,
+	HRTIMER_BASE_BOOTTIME,
+	HRTIMER_MAX_CLOCK_BASES,
+};
+
+struct hrtimer_cpu_base {
+	raw_spinlock_t			lock;
+	unsigned int			active_bases;
+	unsigned int			clock_was_set;
+#ifdef CONFIG_HIGH_RES_TIMERS
+	ktime_t				expires_next;
+	int				hres_active;
+	int				hang_detected;
+	unsigned long			nr_events;
+	unsigned long			nr_retries;
+	unsigned long			nr_hangs;
+	ktime_t				max_hang_time;
+#endif
+	struct hrtimer_clock_base	clock_base[HRTIMER_MAX_CLOCK_BASES];
+};
+
+static inline void hrtimer_set_expires(struct hrtimer *timer, ktime_t time)
+{
+	timer->node.expires = time;
+	timer->_softexpires = time;
+}
+
+static inline void hrtimer_set_expires_range(struct hrtimer *timer, ktime_t time, ktime_t delta)
+{
+	timer->_softexpires = time;
+	timer->node.expires = ktime_add_safe(time, delta);
+}
+
+static inline void hrtimer_set_expires_range_ns(struct hrtimer *timer, ktime_t time, unsigned long delta)
+{
+	timer->_softexpires = time;
+	timer->node.expires = ktime_add_safe(time, ns_to_ktime(delta));
+}
+
+static inline void hrtimer_set_expires_tv64(struct hrtimer *timer, s64 tv64)
+{
+	timer->node.expires.tv64 = tv64;
+	timer->_softexpires.tv64 = tv64;
+}
+
+static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time)
+{
+	timer->node.expires = ktime_add_safe(timer->node.expires, time);
+	timer->_softexpires = ktime_add_safe(timer->_softexpires, time);
+}
+
+static inline void hrtimer_add_expires_ns(struct hrtimer *timer, u64 ns)
+{
+	timer->node.expires = ktime_add_ns(timer->node.expires, ns);
+	timer->_softexpires = ktime_add_ns(timer->_softexpires, ns);
+}
+
+static inline ktime_t hrtimer_get_expires(const struct hrtimer *timer)
+{
+	return timer->node.expires;
+}
+
+static inline ktime_t hrtimer_get_softexpires(const struct hrtimer *timer)
+{
+	return timer->_softexpires;
+}
+
+static inline s64 hrtimer_get_expires_tv64(const struct hrtimer *timer)
+{
+	return timer->node.expires.tv64;
+}
+static inline s64 hrtimer_get_softexpires_tv64(const struct hrtimer *timer)
+{
+	return timer->_softexpires.tv64;
+}
+
+static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer)
+{
+	return ktime_to_ns(timer->node.expires);
+}
+
+static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
+{
+	return ktime_sub(timer->node.expires, timer->base->get_time());
+}
+
+#ifdef CONFIG_HIGH_RES_TIMERS
+struct clock_event_device;
+
+extern void hrtimer_interrupt(struct clock_event_device *dev);
+
+static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer)
+{
+	return timer->base->get_time();
+}
+
+static inline int hrtimer_is_hres_active(struct hrtimer *timer)
+{
+	return timer->base->cpu_base->hres_active;
+}
+
+extern void hrtimer_peek_ahead_timers(void);
+
+# define HIGH_RES_NSEC		1
+# define KTIME_HIGH_RES		(ktime_t) { .tv64 = HIGH_RES_NSEC }
+# define MONOTONIC_RES_NSEC	HIGH_RES_NSEC
+# define KTIME_MONOTONIC_RES	KTIME_HIGH_RES
+
+extern void clock_was_set_delayed(void);
+
+#else
+
+# define MONOTONIC_RES_NSEC	LOW_RES_NSEC
+# define KTIME_MONOTONIC_RES	KTIME_LOW_RES
+
+static inline void hrtimer_peek_ahead_timers(void) { }
+
+static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer)
+{
+	return timer->base->softirq_time;
+}
+
+static inline int hrtimer_is_hres_active(struct hrtimer *timer)
+{
+	return 0;
+}
+
+static inline void clock_was_set_delayed(void) { }
+
+#endif
+
+extern void clock_was_set(void);
+#ifdef CONFIG_TIMERFD
+extern void timerfd_clock_was_set(void);
+#else
+static inline void timerfd_clock_was_set(void) { }
+#endif
+extern void hrtimers_resume(void);
+
+extern ktime_t ktime_get(void);
+extern ktime_t ktime_get_real(void);
+extern ktime_t ktime_get_boottime(void);
+extern ktime_t ktime_get_monotonic_offset(void);
+extern ktime_t ktime_get_update_offsets(ktime_t *offs_real, ktime_t *offs_boot);
+
+DECLARE_PER_CPU(struct tick_device, tick_cpu_device);
+
+
+
+extern void hrtimer_init(struct hrtimer *timer, clockid_t which_clock,
+			 enum hrtimer_mode mode);
+
+#ifdef CONFIG_DEBUG_OBJECTS_TIMERS
+extern void hrtimer_init_on_stack(struct hrtimer *timer, clockid_t which_clock,
+				  enum hrtimer_mode mode);
+
+extern void destroy_hrtimer_on_stack(struct hrtimer *timer);
+#else
+static inline void hrtimer_init_on_stack(struct hrtimer *timer,
+					 clockid_t which_clock,
+					 enum hrtimer_mode mode)
+{
+	hrtimer_init(timer, which_clock, mode);
+}
+static inline void destroy_hrtimer_on_stack(struct hrtimer *timer) { }
+#endif
+
+extern int hrtimer_start(struct hrtimer *timer, ktime_t tim,
+			 const enum hrtimer_mode mode);
+extern int hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
+			unsigned long range_ns, const enum hrtimer_mode mode);
+extern int
+__hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
+			 unsigned long delta_ns,
+			 const enum hrtimer_mode mode, int wakeup);
+
+extern int hrtimer_cancel(struct hrtimer *timer);
+extern int hrtimer_try_to_cancel(struct hrtimer *timer);
+
+static inline int hrtimer_start_expires(struct hrtimer *timer,
+						enum hrtimer_mode mode)
+{
+	unsigned long delta;
+	ktime_t soft, hard;
+	soft = hrtimer_get_softexpires(timer);
+	hard = hrtimer_get_expires(timer);
+	delta = ktime_to_ns(ktime_sub(hard, soft));
+	return hrtimer_start_range_ns(timer, soft, delta, mode);
+}
+
+static inline int hrtimer_restart(struct hrtimer *timer)
+{
+	return hrtimer_start_expires(timer, HRTIMER_MODE_ABS);
+}
+
+extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer);
+extern int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp);
+
+extern ktime_t hrtimer_get_next_event(void);
+
+static inline int hrtimer_active(const struct hrtimer *timer)
+{
+	return timer->state != HRTIMER_STATE_INACTIVE;
+}
+
+static inline int hrtimer_is_queued(struct hrtimer *timer)
+{
+	return timer->state & HRTIMER_STATE_ENQUEUED;
+}
+
+static inline int hrtimer_callback_running(struct hrtimer *timer)
+{
+	return timer->state & HRTIMER_STATE_CALLBACK;
+}
+
+extern u64
+hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
+
+static inline u64 hrtimer_forward_now(struct hrtimer *timer,
+				      ktime_t interval)
+{
+	return hrtimer_forward(timer, timer->base->get_time(), interval);
+}
+
+extern long hrtimer_nanosleep(struct timespec *rqtp,
+			      struct timespec __user *rmtp,
+			      const enum hrtimer_mode mode,
+			      const clockid_t clockid);
+extern long hrtimer_nanosleep_restart(struct restart_block *restart_block);
+
+extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
+				 struct task_struct *tsk);
+
+extern int schedule_hrtimeout_range(ktime_t *expires, unsigned long delta,
+						const enum hrtimer_mode mode);
+extern int schedule_hrtimeout_range_clock(ktime_t *expires,
+		unsigned long delta, const enum hrtimer_mode mode, int clock);
+extern int schedule_hrtimeout(ktime_t *expires, const enum hrtimer_mode mode);
+
+extern void hrtimer_run_queues(void);
+extern void hrtimer_run_pending(void);
+
+extern void __init hrtimers_init(void);
+
+#if BITS_PER_LONG < 64
+extern u64 ktime_divns(const ktime_t kt, s64 div);
+#else 
+# define ktime_divns(kt, div)		(u64)((kt).tv64 / (div))
+#endif
+
+extern void sysrq_timer_list_show(void);
+
+#endif