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mm/compaction: avoid rescanning pageblocks in isolate_freepages
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
mm
/
util.c
diff --git
a/mm/util.c
b/mm/util.c
index
a24aa22
..
c1010cb
100644
(file)
--- a/
mm/util.c
+++ b/
mm/util.c
@@
-275,17
+275,14
@@
pid_t vm_is_stack(struct task_struct *task,
if (in_group) {
struct task_struct *t;
if (in_group) {
struct task_struct *t;
- rcu_read_lock();
- if (!pid_alive(task))
- goto done;
-
t = task
;
-
do
{
+
rcu_read_lock()
;
+
for_each_thread(task, t)
{
if (vm_is_stack_for_task(t, vma)) {
ret = t->pid;
goto done;
}
if (vm_is_stack_for_task(t, vma)) {
ret = t->pid;
goto done;
}
- }
while_each_thread(task, t);
+ }
done:
rcu_read_unlock();
}
done:
rcu_read_unlock();
}