time: Extend get_xtime_and_monotonic_offset() to also return sleep

Extend get_xtime_and_monotonic_offset to
get_xtime_and_monotonic_and_sleep_offset().

CC: Jamie Lokier <jamie@shareable.org>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Alexander Shishkin <virtuoso@slind.org>
CC: Arve Hjønnevåg <arve@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>

3 files changed, 13 insertions, 7 deletions

diff --git a/include/linux/time.h b/include/linux/time.h
index fa39150cb816..02d48fb30b41 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -124,7 +124,8 @@ unsigned long get_seconds(void);
 struct timespec current_kernel_time(void);
 struct timespec __current_kernel_time(void); /* does not take xtime_lock */
 struct timespec get_monotonic_coarse(void);
-void get_xtime_and_monotonic_offset(struct timespec *xtim, struct timespec *wtom);
+void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
+                                struct timespec *wtom, struct timespec *sleep);
 
 #define CURRENT_TIME            (current_kernel_time())
 #define CURRENT_TIME_SEC        ((struct timespec) { get_seconds(), 0 })
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index ca99e2454600..e8bf3ad99063 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -91,9 +91,9 @@ static inline int hrtimer_clockid_to_base(clockid_t clock_id)
 static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base)
 {
         ktime_t xtim, tomono;
-        struct timespec xts, tom;
+        struct timespec xts, tom, slp;
 
-        get_xtime_and_monotonic_offset(&xts, &tom);
+        get_xtime_and_monotonic_and_sleep_offset(&xts, &tom, &slp);
 
         xtim = timespec_to_ktime(xts);
         tomono = timespec_to_ktime(tom);
@@ -614,12 +614,13 @@ static int hrtimer_reprogram(struct hrtimer *timer,
 static void retrigger_next_event(void *arg)
 {
         struct hrtimer_cpu_base *base;
-        struct timespec realtime_offset, wtm;
+        struct timespec realtime_offset, wtm, sleep;
 
         if (!hrtimer_hres_active())
                 return;
 
-        get_xtime_and_monotonic_offset(&realtime_offset, &wtm);
+        get_xtime_and_monotonic_and_sleep_offset(&realtime_offset, &wtm,
+                                                        &sleep);
         set_normalized_timespec(&realtime_offset, -wtm.tv_sec, -wtm.tv_nsec);
 
         base = &__get_cpu_var(hrtimer_bases);
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 5fbd9aa7df95..3bd7e3d5c632 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1040,11 +1040,14 @@ void do_timer(unsigned long ticks)
 }
 
 /**
- * get_xtime_and_monotonic_offset() - get xtime and wall_to_monotonic
+ * get_xtime_and_monotonic_and_sleep_offset() - get xtime, wall_to_monotonic,
+ *    and sleep offsets.
  * @xtim:       pointer to timespec to be set with xtime
  * @wtom:       pointer to timespec to be set with wall_to_monotonic
+ * @sleep:      pointer to timespec to be set with time in suspend
  */
-void get_xtime_and_monotonic_offset(struct timespec *xtim, struct timespec *wtom)
+void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
+                                struct timespec *wtom, struct timespec *sleep)
 {
         unsigned long seq;
 
@@ -1052,6 +1055,7 @@ void get_xtime_and_monotonic_offset(struct timespec *xtim, struct timespec *wtom
                 seq = read_seqbegin(&xtime_lock);
                 *xtim = xtime;
                 *wtom = wall_to_monotonic;
+                *sleep = total_sleep_time;
         } while (read_seqretry(&xtime_lock, seq));
 }