__pmd_to_swp_entry
#define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val(pmd) })
#define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val(pmd) })
#define __pmd_to_swp_entry(pmd) (__pte_to_swp_entry(pmd_pte(pmd)))
#define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val(pmd) })
static inline swp_entry_t __pmd_to_swp_entry(pmd_t pmd)
#define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val((pmd)) })