queue_stop_cpus_work() can do everything in one for_each_cpu() loop.
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
kernel/stop_machine.c | 17 +++++++----------
1 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 6e677b0..6212208 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -303,22 +303,19 @@ static void queue_stop_cpus_work(const struct cpumask
*cpumask,
struct cpu_stop_work *work;
unsigned int cpu;
- /* initialize works and done */
- for_each_cpu(cpu, cpumask) {
- work = &per_cpu(cpu_stopper.stop_work, cpu);
- work->fn = fn;
- work->arg = arg;
- work->done = done;
- }
-
/*
* Disable preemption while queueing to avoid getting
* preempted by a stopper which might wait for other stoppers
* to enter @fn which can lead to deadlock.
*/
lg_global_lock(&stop_cpus_lock);
- for_each_cpu(cpu, cpumask)
- cpu_stop_queue_work(cpu, &per_cpu(cpu_stopper.stop_work, cpu));
+ for_each_cpu(cpu, cpumask) {
+ work = &per_cpu(cpu_stopper.stop_work, cpu);
+ work->fn = fn;
+ work->arg = arg;
+ work->done = done;
+ cpu_stop_queue_work(cpu, work);
+ }
lg_global_unlock(&stop_cpus_lock);
}
--
1.5.5.1
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