diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 74568ca..f9ee96c 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -71,12 +71,16 @@ struct timekeeper {
 	/* The raw monotonic time for the CLOCK_MONOTONIC_RAW posix clock. */
 	struct timespec raw_time;
 
-	/* Seqlock for all timekeeper values */
-	seqlock_t lock;
 };
 
 static struct timekeeper timekeeper;
 
+/* Locks for timekeeper variable: */
+/* This seqcount serializes readers from updates */
+static seqcount_t timekeeper_rlock;
+/* This spinlock serializes updaters */
+static spinlock_t timekeeper_wlock;
+
 /*
  * This read-write spinlock protects us from races in SMP while
  * playing with xtime.
@@ -212,7 +216,7 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
 	return clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift);
 }
 
-/* must hold write on timekeeper.lock */
+/* must hold write on timekeeper_wlock */
 static void timekeeping_update(struct timekeeper *tk, bool clearntp)
 {
 	struct timespec xt;
@@ -229,11 +233,13 @@ void timekeeping_leap_insert(int leapsecond)
 {
 	unsigned long flags;
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
 	timekeeper.xtime_sec += leapsecond;
 	timekeeper.wall_to_monotonic.tv_sec -= leapsecond;
 	timekeeping_update(&timekeeper, false);
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 }
 
@@ -280,7 +286,7 @@ void getnstimeofday(struct timespec *ts)
 	WARN_ON(timekeeping_suspended);
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 
 		ts->tv_sec = timekeeper.xtime_sec;
 		ts->tv_nsec = timekeeping_get_ns(&timekeeper);
@@ -288,7 +294,7 @@ void getnstimeofday(struct timespec *ts)
 		/* If arch requires, add in gettimeoffset() */
 		nsecs += arch_gettimeoffset();
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	timespec_add_ns(ts, nsecs);
 }
@@ -303,7 +309,7 @@ ktime_t ktime_get(void)
 	WARN_ON(timekeeping_suspended);
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 		secs = timekeeper.xtime_sec +
 				timekeeper.wall_to_monotonic.tv_sec;
 		nsecs = timekeeping_get_ns(&timekeeper) +
@@ -311,7 +317,7 @@ ktime_t ktime_get(void)
 		/* If arch requires, add in gettimeoffset() */
 		nsecs += arch_gettimeoffset();
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 	/*
 	 * Use ktime_set/ktime_add_ns to create a proper ktime on
 	 * 32-bit architectures without CONFIG_KTIME_SCALAR.
@@ -336,14 +342,14 @@ void ktime_get_ts(struct timespec *ts)
 	WARN_ON(timekeeping_suspended);
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 		ts->tv_sec = timekeeper.xtime_sec;
 		ts->tv_nsec = timekeeping_get_ns(&timekeeper);
 		tomono = timekeeper.wall_to_monotonic;
 		/* If arch requires, add in gettimeoffset() */
 		ts->tv_nsec += arch_gettimeoffset();
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec,
 				ts->tv_nsec + tomono.tv_nsec);
@@ -371,7 +377,7 @@ void getnstime_raw_and_real(struct timespec *ts_raw, struct timespec *ts_real)
 	do {
 		u32 arch_offset;
 
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 
 		*ts_raw = timekeeper.raw_time;
 		ts_real->tv_sec = timekeeper.xtime_sec;
@@ -385,7 +391,7 @@ void getnstime_raw_and_real(struct timespec *ts_raw, struct timespec *ts_real)
 		nsecs_raw += arch_offset;
 		nsecs_real += arch_offset;
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	timespec_add_ns(ts_raw, nsecs_raw);
 	timespec_add_ns(ts_real, nsecs_real);
@@ -424,7 +430,8 @@ int do_settimeofday(const struct timespec *tv)
 	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
 		return -EINVAL;
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
 
 	timekeeping_forward_now(&timekeeper);
 
@@ -439,7 +446,8 @@ int do_settimeofday(const struct timespec *tv)
 
 	timekeeping_update(&timekeeper, true);
 
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 	/* signal hrtimers about time change */
 	clock_was_set();
@@ -463,7 +471,8 @@ int timekeeping_inject_offset(struct timespec *ts)
 	if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
 		return -EINVAL;
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
 
 	timekeeping_forward_now(&timekeeper);
 
@@ -474,7 +483,8 @@ int timekeeping_inject_offset(struct timespec *ts)
 
 	timekeeping_update(&timekeeper, true);
 
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 	/* signal hrtimers about time change */
 	clock_was_set();
@@ -546,11 +556,11 @@ void getrawmonotonic(struct timespec *ts)
 	s64 nsecs;
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 		nsecs = timekeeping_get_ns_raw(&timekeeper);
 		*ts = timekeeper.raw_time;
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	timespec_add_ns(ts, nsecs);
 }
@@ -566,11 +576,11 @@ int timekeeping_valid_for_hres(void)
 	int ret;
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 
 		ret = timekeeper.clock->flags & CLOCK_SOURCE_VALID_FOR_HRES;
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	return ret;
 }
@@ -583,11 +593,11 @@ u64 timekeeping_max_deferment(void)
 	unsigned long seq;
 	u64 ret;
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 
 		ret = timekeeper.clock->max_idle_ns;
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	return ret;
 }
@@ -634,11 +644,13 @@ void __init timekeeping_init(void)
 	read_persistent_clock(&now);
 	read_boot_clock(&boot);
 
-	seqlock_init(&timekeeper.lock);
-
+	seqcount_init(&timekeeper_rlock);
+	spin_lock_init(&timekeeper_wlock);
 	ntp_init();
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
+
 	clock = clocksource_default_clock();
 	if (clock->enable)
 		clock->enable(clock);
@@ -654,7 +666,10 @@ void __init timekeeping_init(void)
 				-boot.tv_sec, -boot.tv_nsec);
 	timekeeper.total_sleep_time.tv_sec = 0;
 	timekeeper.total_sleep_time.tv_nsec = 0;
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
+
 }
 
 /* time in seconds when suspend began */
@@ -703,7 +718,8 @@ void timekeeping_inject_sleeptime(struct timespec *delta)
 	if (!(ts.tv_sec == 0 && ts.tv_nsec == 0))
 		return;
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
 
 	timekeeping_forward_now(&timekeeper);
 
@@ -711,7 +727,8 @@ void timekeeping_inject_sleeptime(struct timespec *delta)
 
 	timekeeping_update(&timekeeper, true);
 
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 	/* signal hrtimers about time change */
 	clock_was_set();
@@ -734,7 +751,8 @@ static void timekeeping_resume(void)
 
 	clocksource_resume();
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
 
 	if (timespec_compare(&ts, &timekeeping_suspend_time) > 0) {
 		ts = timespec_sub(ts, timekeeping_suspend_time);
@@ -744,7 +762,9 @@ static void timekeeping_resume(void)
 	timekeeper.clock->cycle_last = timekeeper.clock->read(timekeeper.clock);
 	timekeeper.ntp_error = 0;
 	timekeeping_suspended = 0;
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 	touch_softlockup_watchdog();
 
@@ -762,7 +782,9 @@ static int timekeeping_suspend(void)
 
 	read_persistent_clock(&timekeeping_suspend_time);
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
+
 	timekeeping_forward_now(&timekeeper);
 	timekeeping_suspended = 1;
 
@@ -785,7 +807,9 @@ static int timekeeping_suspend(void)
 		timekeeping_suspend_time =
 			timespec_add(timekeeping_suspend_time, delta_delta);
 	}
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 	clockevents_notify(CLOCK_EVT_NOTIFY_SUSPEND, NULL);
 	clocksource_suspend();
@@ -1041,7 +1065,8 @@ static void update_wall_time(void)
 	unsigned long flags;
 	s64 remainder;
 
-	write_seqlock_irqsave(&timekeeper.lock, flags);
+	spin_lock_irqsave(&timekeeper_wlock, flags);
+	write_seqcount_begin(&timekeeper_rlock);
 
 	/* Make sure we're fully resumed: */
 	if (unlikely(timekeeping_suspended))
@@ -1128,7 +1153,8 @@ static void update_wall_time(void)
 	timekeeping_update(&timekeeper, false);
 
 out:
-	write_sequnlock_irqrestore(&timekeeper.lock, flags);
+	write_seqcount_end(&timekeeper_rlock);
+	spin_unlock_irqrestore(&timekeeper_wlock, flags);
 
 }
 
@@ -1174,13 +1200,13 @@ void get_monotonic_boottime(struct timespec *ts)
 	WARN_ON(timekeeping_suspended);
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 		ts->tv_sec = timekeeper.xtime_sec;
 		ts->tv_nsec = timekeeping_get_ns(&timekeeper);
 		tomono = timekeeper.wall_to_monotonic;
 		sleep = timekeeper.total_sleep_time;
 
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec + sleep.tv_sec,
 			ts->tv_nsec + tomono.tv_nsec + sleep.tv_nsec);
@@ -1231,10 +1257,10 @@ struct timespec current_kernel_time(void)
 	unsigned long seq;
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 
 		now = tk_xtime(&timekeeper);
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	return now;
 }
@@ -1246,11 +1272,11 @@ struct timespec get_monotonic_coarse(void)
 	unsigned long seq;
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 
 		now = tk_xtime(&timekeeper);
 		mono = timekeeper.wall_to_monotonic;
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	set_normalized_timespec(&now, now.tv_sec + mono.tv_sec,
 				now.tv_nsec + mono.tv_nsec);
@@ -1282,11 +1308,11 @@ void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
 	unsigned long seq;
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 		*xtim = tk_xtime(&timekeeper);
 		*wtom = timekeeper.wall_to_monotonic;
 		*sleep = timekeeper.total_sleep_time;
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 }
 
 /**
@@ -1298,9 +1324,9 @@ ktime_t ktime_get_monotonic_offset(void)
 	struct timespec wtom;
 
 	do {
-		seq = read_seqbegin(&timekeeper.lock);
+		seq = read_seqcount_begin(&timekeeper_rlock);
 		wtom = timekeeper.wall_to_monotonic;
-	} while (read_seqretry(&timekeeper.lock, seq));
+	} while (read_seqcount_retry(&timekeeper_rlock, seq));
 
 	return timespec_to_ktime(wtom);
 }
