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 <qiud...@linux.vnet.ibm.com>
Tested-by: Mike Qiu <qiud...@linux.vnet.ibm.com>
Signed-off-by: Li Zefan <lize...@huawei.com>
---
kernel/cpuset.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 53a9bbf..baa155c 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);
--
1.8.0.2
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