v5.4/67e4eb076840c7d199ebae0a8825c89a5b07d162

67e4eb076840 ("mm: thp: don't need to drain lru cache when splitting and mlocking THP")
a8803e6c177f ("mm/huge_memory.c: use head to emphasize the purpose of page")
cb829624867b ("mm/huge_memory.c: use head to check huge zero page")