[PATCH] cgroup/cpuset: remove unneeded nodes_or() in cpuset_change_task_nodemask()

[Miaohe Lin]

The tsk->mems_allowed is changed before calling mpol_rebind_task() and
being reassigned right after it. But tsk->mems_allowed is not needed
inside mpol_rebind_task(). So remove unneeded tsk->mems_allowed modify
via nodes_or() here.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 kernel/cgroup/cpuset.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 58e6f18f01c1..33a429c1179f 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1941,7 +1941,6 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk,
 	local_irq_disable();
 	write_seqcount_begin(&tsk->mems_allowed_seq);
 
-	nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems);
 	mpol_rebind_task(tsk, newmems);
 	tsk->mems_allowed = *newmems;
 
-- 
2.27.0