376 			unsigned long start, unsigned long end)  in __munlock_pagevec_fill()  argument
386 	pte = get_locked_pte(vma->vm_mm, start,	&ptl);  in __munlock_pagevec_fill()
388 	end = pgd_addr_end(start, end);  in __munlock_pagevec_fill()
389 	end = p4d_addr_end(start, end);  in __munlock_pagevec_fill()
390 	end = pud_addr_end(start, end);  in __munlock_pagevec_fill()
391 	end = pmd_addr_end(start, end);  in __munlock_pagevec_fill()
394 	start += PAGE_SIZE;  in __munlock_pagevec_fill()
395 	while (start < end) {  in __munlock_pagevec_fill()
399 			page = vm_normal_page(vma, start, *pte);  in __munlock_pagevec_fill()
419 		start += PAGE_SIZE;  in __munlock_pagevec_fill()
424 	return start;  in __munlock_pagevec_fill()
446 			     unsigned long start, unsigned long end)  in munlock_vma_pages_range()  argument
450 	while (start < end) {  in munlock_vma_pages_range()
465 		page = follow_page(vma, start, FOLL_GET | FOLL_DUMP);  in munlock_vma_pages_range()
497 				start = __munlock_pagevec_fill(&pvec, vma,  in munlock_vma_pages_range()
498 						zone, start, end);  in munlock_vma_pages_range()
504 		start += page_increm * PAGE_SIZE;  in munlock_vma_pages_range()
520 	unsigned long start, unsigned long end, vm_flags_t newflags)  in mlock_fixup()  argument
535 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);  in mlock_fixup()
536 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,  in mlock_fixup()
544 	if (start != vma->vm_start) {  in mlock_fixup()
545 		ret = split_vma(mm, vma, start, 1);  in mlock_fixup()
560 	nr_pages = (end - start) >> PAGE_SHIFT;  in mlock_fixup()
576 		munlock_vma_pages_range(vma, start, end);  in mlock_fixup()
583 static int apply_vma_lock_flags(unsigned long start, size_t len,  in apply_vma_lock_flags()  argument
590 	VM_BUG_ON(offset_in_page(start));  in apply_vma_lock_flags()
592 	end = start + len;  in apply_vma_lock_flags()
593 	if (end < start)  in apply_vma_lock_flags()
595 	if (end == start)  in apply_vma_lock_flags()
597 	vma = find_vma(current->mm, start);  in apply_vma_lock_flags()
598 	if (!vma || vma->vm_start > start)  in apply_vma_lock_flags()
602 	if (start > vma->vm_start)  in apply_vma_lock_flags()
605 	for (nstart = start ; ; ) {  in apply_vma_lock_flags()
640 		unsigned long start, size_t len)  in count_mm_mlocked_page_nr()  argument
648 	vma = find_vma(mm, start);  in count_mm_mlocked_page_nr()
653 		if (start >= vma->vm_end)  in count_mm_mlocked_page_nr()
655 		if (start + len <=  vma->vm_start)  in count_mm_mlocked_page_nr()
658 			if (start > vma->vm_start)  in count_mm_mlocked_page_nr()
659 				count -= (start - vma->vm_start);  in count_mm_mlocked_page_nr()
660 			if (start + len < vma->vm_end) {  in count_mm_mlocked_page_nr()
661 				count += start + len - vma->vm_start;  in count_mm_mlocked_page_nr()
671 static __must_check int do_mlock(unsigned long start, size_t len, vm_flags_t flags)  in do_mlock()  argument
677 	start = untagged_addr(start);  in do_mlock()
682 	len = PAGE_ALIGN(len + (offset_in_page(start)));  in do_mlock()
683 	start &= PAGE_MASK;  in do_mlock()
701 				start, len);  in do_mlock()
706 		error = apply_vma_lock_flags(start, len, flags);  in do_mlock()
712 	error = __mm_populate(start, len, 0);  in do_mlock()
718 SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)  in SYSCALL_DEFINE2()  argument
720 	return do_mlock(start, len, VM_LOCKED);  in SYSCALL_DEFINE2()
723 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)  in SYSCALL_DEFINE3()  argument
733 	return do_mlock(start, len, vm_flags);  in SYSCALL_DEFINE3()
736 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)  in SYSCALL_DEFINE2()  argument
740 	start = untagged_addr(start);  in SYSCALL_DEFINE2()
742 	len = PAGE_ALIGN(len + (offset_in_page(start)));  in SYSCALL_DEFINE2()
743 	start &= PAGE_MASK;  in SYSCALL_DEFINE2()
747 	ret = apply_vma_lock_flags(start, len, 0);  in SYSCALL_DEFINE2()