71 static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,  in gup_pte_range()  argument
81 	ptep = pte_offset_map(&pmd, addr);  in gup_pte_range()
103 	} while (ptep++, addr += PAGE_SIZE, addr != end);  in gup_pte_range()
117 static noinline int gup_huge_pmd(pmd_t pmd, unsigned long addr,  in gup_huge_pmd()  argument
136 	page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);  in gup_huge_pmd()
145 	} while (addr += PAGE_SIZE, addr != end);  in gup_huge_pmd()
151 static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,  in gup_pmd_range()  argument
157 	pmdp = pmd_offset(&pud, addr);  in gup_pmd_range()
161 		next = pmd_addr_end(addr, end);  in gup_pmd_range()
183 			if (!gup_huge_pmd(pmd, addr, next, write, pages, nr))  in gup_pmd_range()
186 			if (!gup_pte_range(pmd, addr, next, write, pages, nr))  in gup_pmd_range()
189 	} while (pmdp++, addr = next, addr != end);  in gup_pmd_range()
194 static noinline int gup_huge_pud(pud_t pud, unsigned long addr,  in gup_huge_pud()  argument
213 	page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);  in gup_huge_pud()
222 	} while (addr += PAGE_SIZE, addr != end);  in gup_huge_pud()
228 static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,  in gup_pud_range()  argument
234 	pudp = pud_offset(&pgd, addr);  in gup_pud_range()
238 		next = pud_addr_end(addr, end);  in gup_pud_range()
242 			if (!gup_huge_pud(pud, addr, next, write, pages, nr))  in gup_pud_range()
245 			if (!gup_pmd_range(pud, addr, next, write, pages, nr))  in gup_pud_range()
248 	} while (pudp++, addr = next, addr != end);  in gup_pud_range()
261 	unsigned long addr, len, end;  in __get_user_pages_fast()  local
268 	addr = start;  in __get_user_pages_fast()
294 	pgdp = pgd_offset(mm, addr);  in __get_user_pages_fast()
298 		next = pgd_addr_end(addr, end);  in __get_user_pages_fast()
301 		if (!gup_pud_range(pgd, addr, next, write, pages, &nr))  in __get_user_pages_fast()
303 	} while (pgdp++, addr = next, addr != end);  in __get_user_pages_fast()
329 	unsigned long addr, len, end;  in get_user_pages_fast()  local
335 	addr = start;  in get_user_pages_fast()
366 	pgdp = pgd_offset(mm, addr);  in get_user_pages_fast()
370 		next = pgd_addr_end(addr, end);  in get_user_pages_fast()
373 		if (!gup_pud_range(pgd, addr, next, write, pages, &nr))  in get_user_pages_fast()
375 	} while (pgdp++, addr = next, addr != end);  in get_user_pages_fast()