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-rw-r--r--mm/memcontrol.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e3d56927a724..c1e64d60ed02 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6280,11 +6280,7 @@ static ssize_t swap_max_write(struct kernfs_open_file *of,
if (err)
return err;
- mutex_lock(&memcg_max_mutex);
- err = page_counter_set_max(&memcg->swap, max);
- mutex_unlock(&memcg_max_mutex);
- if (err)
- return err;
+ xchg(&memcg->swap.max, max);
return nbytes;
}