sched: fix warning in hrtick_start_fair()
Benjamin Herrenschmidt reported:
> I get that on ppc64 ...
>
> In file included from kernel/sched.c:1595:
> kernel/sched_fair.c: In function ‘hrtick_start_fair’:
> kernel/sched_fair.c:902: warning: comparison of distinct pointer types lacks a cast
>
> Probably harmless but annoying.
s64 delta = slice - ran;
--> delta = max(10000LL, delta);
Probably ppc64's s64 is long vs long long..
I think hpa was looking at sanitizing all these 64bit types across the
architectures.
Use max_t with an explicit type meanwhile.
Reported-by: Benjamin Herrenschmid <benh@kernel.crashing.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index cf2cd6c..0fe94ea 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -899,7 +899,7 @@
* doesn't make sense. Rely on vruntime for fairness.
*/
if (rq->curr != p)
- delta = max(10000LL, delta);
+ delta = max_t(s64, 10000LL, delta);
hrtick_start(rq, delta);
}