[PATCH 02/10] smp: use __cpumask_set_cpu in on_each_cpu_cond

[Rik van Riel]

The code in on_each_cpu_cond sets CPUs in a locally allocated bitmask,
which should never be used by other CPUs simultaneously. There is no
need to use locked memory accesses to set the bits in this bitmap.

Switch to __cpumask_set_cpu.

Suggested-by: Peter Zijlstra <pet...@infradead.org>
Signed-off-by: Rik van Riel <r...@surriel.com>
---
 kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/smp.c b/kernel/smp.c
index 084c8b3a2681..2dbc842dd385 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -680,7 +680,7 @@ void on_each_cpu_cond(bool (*cond_func)(int cpu, void 
*info),
                preempt_disable();
                for_each_online_cpu(cpu)
                        if (cond_func(cpu, info))
-                               cpumask_set_cpu(cpu, cpus);
+                               __cpumask_set_cpu(cpu, cpus);
                on_each_cpu_mask(cpus, func, info, wait);
                preempt_enable();
                free_cpumask_var(cpus);
-- 
2.14.4