hugetlb_fault_mutex_hash
hash = hugetlb_fault_mutex_hash(mapping, index);
hash = hugetlb_fault_mutex_hash(mapping, index);
u32 hugetlb_fault_mutex_hash(struct address_space *mapping, pgoff_t idx);
hash = hugetlb_fault_mutex_hash(mapping, idx);
hash = hugetlb_fault_mutex_hash(mapping, vmf->pgoff);
u32 hash = hugetlb_fault_mutex_hash(mapping, vmf->pgoff);
hash = hugetlb_fault_mutex_hash(mapping, vmf.pgoff);
hash = hugetlb_fault_mutex_hash(memfd->f_mapping, idx);
hash = hugetlb_fault_mutex_hash(mapping, idx);