hrtimer: Cleanup direct access to wall_to_monotonic
Provides an accessor function to replace hrtimer.c's
direct access of wall_to_monotonic.
This will allow wall_to_monotonic to be made static as
planned in Documentation/feature-removal-schedule.txt
Signed-off-by: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <1279068988-21864-9-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/time.h b/include/linux/time.h
index 9072df8..a57e0f6 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -126,7 +126,8 @@
unsigned long get_seconds(void);
struct timespec current_kernel_time(void);
-struct timespec __current_kernel_time(void); /* does not hold xtime_lock */
+struct timespec __current_kernel_time(void); /* does not take xtime_lock */
+struct timespec __get_wall_to_monotonic(void); /* does not take xtime_lock */
struct timespec get_monotonic_coarse(void);
#define CURRENT_TIME (current_kernel_time())
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 5c69e99..809f48c 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -90,7 +90,7 @@
do {
seq = read_seqbegin(&xtime_lock);
xts = __current_kernel_time();
- tom = wall_to_monotonic;
+ tom = __get_wall_to_monotonic();
} while (read_seqretry(&xtime_lock, seq));
xtim = timespec_to_ktime(xts);
@@ -612,7 +612,7 @@
static void retrigger_next_event(void *arg)
{
struct hrtimer_cpu_base *base;
- struct timespec realtime_offset;
+ struct timespec realtime_offset, wtm;
unsigned long seq;
if (!hrtimer_hres_active())
@@ -620,10 +620,9 @@
do {
seq = read_seqbegin(&xtime_lock);
- set_normalized_timespec(&realtime_offset,
- -wall_to_monotonic.tv_sec,
- -wall_to_monotonic.tv_nsec);
+ wtm = __get_wall_to_monotonic();
} while (read_seqretry(&xtime_lock, seq));
+ 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 b15c3ac..fb61c2e 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -858,6 +858,11 @@
return xtime;
}
+struct timespec __get_wall_to_monotonic(void)
+{
+ return wall_to_monotonic;
+}
+
struct timespec current_kernel_time(void)
{
struct timespec now;