From e0e80a02e5701c8790bd348ab59edb154fbda60b Mon Sep 17 00:00:00 2001 From: Li Zhong Date: Sat, 27 Apr 2013 06:52:43 -0700 Subject: [PATCH] cpuset: use rebuild_sched_domains() in cpuset_hotplug_workfn() In cpuset_hotplug_workfn(), partition_sched_domains() is called without hotplug lock held, which is actually needed (stated in the function header of partition_sched_domains()). This patch tries to use rebuild_sched_domains() to solve the above issue, and makes the code looks a little simpler. Signed-off-by: Li Zhong Signed-off-by: Li Zefan Signed-off-by: Tejun Heo --- kernel/cpuset.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 866d78ee793..8f0f45e002f 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -2172,17 +2172,8 @@ static void cpuset_hotplug_workfn(struct work_struct *work) flush_workqueue(cpuset_propagate_hotplug_wq); /* rebuild sched domains if cpus_allowed has changed */ - if (cpus_updated) { - struct sched_domain_attr *attr; - cpumask_var_t *doms; - int ndoms; - - mutex_lock(&cpuset_mutex); - ndoms = generate_sched_domains(&doms, &attr); - mutex_unlock(&cpuset_mutex); - - partition_sched_domains(ndoms, doms, attr); - } + if (cpus_updated) + rebuild_sched_domains(); } void cpuset_update_active_cpus(bool cpu_online) -- 2.43.2