sched/numa: Fix is_core_idle()

Use the loop variable instead of the function argument to test the
other SMT siblings for idle.

Fixes: ff7db0bf24db ("sched/numa: Prefer using an idle CPU as a migration target instead of comparing tasks")
Signed-off-by: Mika Penttilä <mika.penttila@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Link: https://lkml.kernel.org/r/20210722063946.28951-1-mika.penttila@gmail.com

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 11d2294..13c3fd4 100644 (file)
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1486,7 +1486,7 @@ static inline bool is_core_idle(int cpu)
                if (cpu == sibling)
                        continue;
 
-               if (!idle_cpu(cpu))
+               if (!idle_cpu(sibling))
                        return false;
        }
 #endif