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>
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@ -1136,7 +1136,7 @@ static void update_nodemasks_hier(struct cpuset *cs, nodemask_t *new_mems)
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mutex_unlock(&callback_mutex);
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WARN_ON(!cgroup_on_dfl(cp->css.cgroup) &&
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nodes_equal(cp->mems_allowed, cp->effective_mems));
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!nodes_equal(cp->mems_allowed, cp->effective_mems));
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update_tasks_nodemask(cp);
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