vmstat: Remove BUG_ON from vmstat_update

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / mm / vmstat.c

diff --git a/mm/vmstat.c b/mm/vmstat.c
index dd0a130..2330450 100644 (file)
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1407,17 +1407,7 @@ static void vmstat_update(struct work_struct *w)
                 * Defer the checking for differentials to the
                 * shepherd thread on a different processor.
                 */
-               int r;
-               /*
-                * Shepherd work thread does not race since it never
-                * changes the bit if its zero but the cpu
-                * online / off line code may race if
-                * worker threads are still allowed during
-                * shutdown / startup.
-                */
-               r = cpumask_test_and_set_cpu(smp_processor_id(),
-                       cpu_stat_off);
-               VM_BUG_ON(r);
+               cpumask_set_cpu(smp_processor_id(), cpu_stat_off);
        }
 }