From 249cc86db7492dc8de1d2eddebc6bcc4ab2a8e9e Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 5 Jun 2013 17:15:48 +0800 Subject: [PATCH] cpuset: remove cpuset_test_cpumask() The test is done in set_cpus_allowed_ptr(), so it's redundant. Signed-off-by: Li Zefan Signed-off-by: Tejun Heo --- kernel/cpuset.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index dbef832e5e2d..51f8e1d5a2a9 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -783,23 +783,6 @@ void rebuild_sched_domains(void) mutex_unlock(&cpuset_mutex); } -/** - * cpuset_test_cpumask - test a task's cpus_allowed versus its cpuset's - * @tsk: task to test - * @scan: struct cgroup_scanner contained in its struct cpuset_hotplug_scanner - * - * Call with cpuset_mutex held. May take callback_mutex during call. - * Called for each task in a cgroup by cgroup_scan_tasks(). - * Return nonzero if this tasks's cpus_allowed mask should be changed (in other - * words, if its mask is not equal to its cpuset's mask). - */ -static int cpuset_test_cpumask(struct task_struct *tsk, - struct cgroup_scanner *scan) -{ - return !cpumask_equal(&tsk->cpus_allowed, - (cgroup_cs(scan->cg))->cpus_allowed); -} - /** * cpuset_change_cpumask - make a task's cpus_allowed the same as its cpuset's * @tsk: task to test @@ -835,7 +818,7 @@ static void update_tasks_cpumask(struct cpuset *cs, struct ptr_heap *heap) struct cgroup_scanner scan; scan.cg = cs->css.cgroup; - scan.test_task = cpuset_test_cpumask; + scan.test_task = NULL; scan.process_task = cpuset_change_cpumask; scan.heap = heap; cgroup_scan_tasks(&scan);