Messages in this thread Patch in this message | | | Date | Wed, 30 Jul 2014 15:07:13 +0800 | From | Li Zefan <> | Subject | [PATCH] cpuset: fix the WARN_ON() in update_nodemasks_hier() |
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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> --- 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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