Commit a1381268 authored Jul 30, 2014 by Li Zefan Committed by Tejun Heo Jul 30, 2014

cpuset: fix the WARN_ON() in update_nodemasks_hier()



The WARN_ON() is used to check if we break the legal hierarchy, on
which the effective mems should be equal to configured mems.

Reported-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Tested-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Signed-off-by: Li Zefan <lizefan@huawei.com>

parent 5de4fa13

kernel/cpuset.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1136,7 +1136,7 @@ static void update_nodemasks_hier(struct cpuset cs, nodemask_t new_mems)
		mutex_unlock(&callback_mutex);

		WARN_ON(!cgroup_on_dfl(cp->css.cgroup) &&
		nodes_equal(cp->mems_allowed, cp->effective_mems));
		!nodes_equal(cp->mems_allowed, cp->effective_mems));

		update_tasks_nodemask(cp);