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[-next] mm/hugetlb_cgroup: register lockdep key for cftype

Message ID 20240618034723.2122429-1-xiujianfeng@huawei.com (mailing list archive)
State New
Headers show
Series [-next] mm/hugetlb_cgroup: register lockdep key for cftype | expand

Commit Message

Xiu Jianfeng June 18, 2024, 3:47 a.m. UTC 
The commit e18df2889ff9 ("mm/hugetlb_cgroup: prepare cftypes based on
template") has changed the cftypes from static allocated objects to
dynamic ones, so the cft->lockdep_key should be registered proactively.

Fixes: e18df2889ff9 ("mm/hugetlb_cgroup: prepare cftypes based on template")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202406181046.8d8b2492-oliver.sang@intel.com
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
---
 mm/hugetlb_cgroup.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 2b899c4ae968..4ff238ba1250 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -836,6 +836,8 @@  hugetlb_cgroup_cfttypes_init(struct hstate *h, struct cftype *cft,
 			cft->file_offset = MEMFILE_OFFSET0(offset) +
 					   MEMFILE_FIELD_SIZE(offset) * idx;
 		}
+
+		lockdep_register_key(&cft->lockdep_key);
 	}
 }