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Subject[PATCH 3/3] mm/hugetlb: Assert hugetlb_lock in __hugetlb_cgroup_commit_charge
Date
This is similar to __hugetlb_cgroup_uncharge_folio() where it relies on
holding hugetlb_lock. Add the similar assertion like the other one, since
it looks like such things may help some day.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
mm/hugetlb_cgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index aa4486bd3904..e20339a346b9 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -308,7 +308,7 @@ static void __hugetlb_cgroup_commit_charge(int idx, unsigned long nr_pages,
{
if (hugetlb_cgroup_disabled() || !h_cg)
return;
-
+ lockdep_assert_held(&hugetlb_lock);
__set_hugetlb_cgroup(folio, h_cg, rsvd);
if (!rsvd) {
unsigned long usage =
--
2.44.0

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