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Diffstat (limited to 'kernel/time/clocksource.c')
-rw-r--r--kernel/time/clocksource.c40
1 files changed, 10 insertions, 30 deletions
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 23336eecb4f4..aab6472853fa 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -20,6 +20,8 @@
#include "tick-internal.h"
#include "timekeeping_internal.h"
+static void clocksource_enqueue(struct clocksource *cs);
+
static noinline u64 cycles_to_nsec_safe(struct clocksource *cs, u64 start, u64 end)
{
u64 delta = clocksource_delta(end, start, cs->mask);
@@ -171,7 +173,6 @@ static inline void clocksource_watchdog_unlock(unsigned long *flags)
}
static int clocksource_watchdog_kthread(void *data);
-static void __clocksource_change_rating(struct clocksource *cs, int rating);
static void clocksource_watchdog_work(struct work_struct *work)
{
@@ -191,6 +192,13 @@ static void clocksource_watchdog_work(struct work_struct *work)
kthread_run(clocksource_watchdog_kthread, NULL, "kwatchdog");
}
+static void clocksource_change_rating(struct clocksource *cs, int rating)
+{
+ list_del(&cs->list);
+ cs->rating = rating;
+ clocksource_enqueue(cs);
+}
+
static void __clocksource_unstable(struct clocksource *cs)
{
cs->flags &= ~(CLOCK_SOURCE_VALID_FOR_HRES | CLOCK_SOURCE_WATCHDOG);
@@ -697,7 +705,7 @@ static int __clocksource_watchdog_kthread(void)
list_for_each_entry_safe(cs, tmp, &watchdog_list, wd_list) {
if (cs->flags & CLOCK_SOURCE_UNSTABLE) {
list_del_init(&cs->wd_list);
- __clocksource_change_rating(cs, 0);
+ clocksource_change_rating(cs, 0);
select = 1;
}
if (cs->flags & CLOCK_SOURCE_RESELECT) {
@@ -1255,34 +1263,6 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq)
}
EXPORT_SYMBOL_GPL(__clocksource_register_scale);
-static void __clocksource_change_rating(struct clocksource *cs, int rating)
-{
- list_del(&cs->list);
- cs->rating = rating;
- clocksource_enqueue(cs);
-}
-
-/**
- * clocksource_change_rating - Change the rating of a registered clocksource
- * @cs: clocksource to be changed
- * @rating: new rating
- */
-void clocksource_change_rating(struct clocksource *cs, int rating)
-{
- unsigned long flags;
-
- mutex_lock(&clocksource_mutex);
- clocksource_watchdog_lock(&flags);
- __clocksource_change_rating(cs, rating);
- clocksource_watchdog_unlock(&flags);
-
- clocksource_select();
- clocksource_select_watchdog(false);
- clocksource_suspend_select(false);
- mutex_unlock(&clocksource_mutex);
-}
-EXPORT_SYMBOL(clocksource_change_rating);
-
/*
* Unbind clocksource @cs. Called with clocksource_mutex held
*/