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Commit 249cc86d authored by Li Zefan's avatar Li Zefan Committed by Tejun Heo
Browse files

cpuset: remove cpuset_test_cpumask() 



The test is done in set_cpus_allowed_ptr(), so it's redundant.

Signed-off-by: default avatarLi Zefan <lizefan@huawei.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 67bd2c59

kernel/cpuset.c

+1 −18
Original line number Diff line number Diff line
@@ -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);