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| author | Li Zhong <zhong@linux.vnet.ibm.com> | 2013-04-27 06:52:43 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-04-27 06:52:43 -0700 |
| commit | e0e80a02e5701c8790bd348ab59edb154fbda60b (patch) | |
| tree | 2fa0dc207322674ec0719857449971240d2b7e4e /kernel | |
| parent | 7ef70e48735e17d2be5c8e8f85052842b16b923a (diff) | |
| download | lwn-e0e80a02e5701c8790bd348ab59edb154fbda60b.tar.gz lwn-e0e80a02e5701c8790bd348ab59edb154fbda60b.zip | |
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 <zhong@linux.vnet.ibm.com>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpuset.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 866d78ee7930..8f0f45e002f2 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) |