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authorLi Zefan <lizefan@huawei.com>2014-07-30 15:07:13 +0800
committerTejun Heo <tj@kernel.org>2014-07-30 11:26:58 -0400
commita13812683f1118ee4deed88d8d9bc2c268358b2e (patch)
treeca8f04658aba2a9b16a755c7b402426d8301d1b1
parent5de4fa13c4df302db41e80ca679df24fdad0d661 (diff)
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>
-rw-r--r--kernel/cpuset.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index f337f42a07ac..9d7264beb74f 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -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);