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authorPeter Zijlstra <peterz@infradead.org>2018-04-30 12:00:14 +0200
committerThomas Gleixner <tglx@linutronix.de>2018-05-02 16:10:41 +0200
commit7dba33c6346c337aac3f7cd188137d4a6d3d1f3a (patch)
tree97209988e12319029c0e69cb53be0dbedcbc64f5 /kernel
parentcd2af07d823e5287cd6c91d54337348c2a873462 (diff)
clocksource: Rework stale comment
AFAICS the hotplug code no longer uses this function. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: len.brown@intel.com Cc: rjw@rjwysocki.net Cc: diego.viola@gmail.com Cc: rui.zhang@intel.com Link: https://lkml.kernel.org/r/20180430100344.656525644@infradead.org
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/clocksource.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 605656df16c4..84f37420fcf5 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -173,10 +173,8 @@ static void __clocksource_unstable(struct clocksource *cs)
* clocksource_mark_unstable - mark clocksource unstable via watchdog
* @cs: clocksource to be marked unstable
*
- * This function is called instead of clocksource_change_rating from
- * cpu hotplug code to avoid a deadlock between the clocksource mutex
- * and the cpu hotplug mutex. It defers the update of the clocksource
- * to the watchdog thread.
+ * This function is called by the x86 TSC code to mark clocksources as unstable;
+ * it defers demotion and re-selection to a kthread.
*/
void clocksource_mark_unstable(struct clocksource *cs)
{