71 static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d)  in pgd_populate()  argument
76 		set_pgd(pgd, __pgd((pfn << _PAGE_PFN_SHIFT) | _PAGE_TABLE));  in pgd_populate()
80 static inline void pgd_populate_safe(struct mm_struct *mm, pgd_t *pgd,  in pgd_populate_safe()  argument
86 		set_pgd_safe(pgd,  in pgd_populate_safe()
153 static inline void sync_kernel_mappings(pgd_t *pgd)  in sync_kernel_mappings()  argument
155 	memcpy(pgd + USER_PTRS_PER_PGD,  in sync_kernel_mappings()
156 	       init_mm.pgd + USER_PTRS_PER_PGD,  in sync_kernel_mappings()
162 	pgd_t *pgd;  in pgd_alloc()  local
164 	pgd = (pgd_t *)__get_free_page(GFP_KERNEL);  in pgd_alloc()
165 	if (likely(pgd != NULL)) {  in pgd_alloc()
166 		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));  in pgd_alloc()
168 		sync_kernel_mappings(pgd);  in pgd_alloc()
170 	return pgd;  in pgd_alloc()