57 		     unsigned long start, unsigned long end, int behavior)  in madvise_behavior()  argument
107 		error = ksm_madvise(vma, start, end, behavior, &new_flags);  in madvise_behavior()
138 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);  in madvise_behavior()
139 	*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,  in madvise_behavior()
149 	if (start != vma->vm_start) {  in madvise_behavior()
154 		error = __split_vma(mm, vma, start, 1);  in madvise_behavior()
193 static int swapin_walk_pmd_entry(pmd_t *pmd, unsigned long start,  in swapin_walk_pmd_entry()  argument
203 	for (index = start; index != end; index += PAGE_SIZE) {  in swapin_walk_pmd_entry()
209 		orig_pte = pte_offset_map_lock(vma->vm_mm, pmd, start, &ptl);  in swapin_walk_pmd_entry()
210 		pte = *(orig_pte + ((index - start) / PAGE_SIZE));  in swapin_walk_pmd_entry()
229 		unsigned long start, unsigned long end)  in force_swapin_readahead()  argument
237 	walk_page_range(start, end, &walk);  in force_swapin_readahead()
243 		unsigned long start, unsigned long end,  in force_shm_swapin_readahead()  argument
250 	for (; start < end; start += PAGE_SIZE) {  in force_shm_swapin_readahead()
251 		index = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;  in force_shm_swapin_readahead()
275 			     unsigned long start, unsigned long end)  in madvise_willneed()  argument
282 		force_swapin_readahead(vma, start, end);  in madvise_willneed()
287 		force_shm_swapin_readahead(vma, start, end,  in madvise_willneed()
301 	start = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;  in madvise_willneed()
306 	force_page_cache_readahead(file->f_mapping, file, start, end - start);  in madvise_willneed()
461 	unsigned long start, end;  in madvise_free_single_vma()  local
469 	start = max(vma->vm_start, start_addr);  in madvise_free_single_vma()
470 	if (start >= vma->vm_end)  in madvise_free_single_vma()
477 	tlb_gather_mmu(&tlb, mm, start, end);  in madvise_free_single_vma()
480 	mmu_notifier_invalidate_range_start(mm, start, end);  in madvise_free_single_vma()
481 	madvise_free_page_range(&tlb, vma, start, end);  in madvise_free_single_vma()
482 	mmu_notifier_invalidate_range_end(mm, start, end);  in madvise_free_single_vma()
483 	tlb_finish_mmu(&tlb, start, end);  in madvise_free_single_vma()
508 					unsigned long start, unsigned long end)  in madvise_dontneed_single_vma()  argument
510 	zap_page_range(vma, start, end - start);  in madvise_dontneed_single_vma()
516 				  unsigned long start, unsigned long end,  in madvise_dontneed_free()  argument
523 	if (!userfaultfd_remove(vma, start, end)) {  in madvise_dontneed_free()
527 		vma = find_vma(current->mm, start);  in madvise_dontneed_free()
530 		if (start < vma->vm_start) {  in madvise_dontneed_free()
559 		VM_WARN_ON(start >= end);  in madvise_dontneed_free()
563 		return madvise_dontneed_single_vma(vma, start, end);  in madvise_dontneed_free()
565 		return madvise_free_single_vma(vma, start, end);  in madvise_dontneed_free()
576 				unsigned long start, unsigned long end)  in madvise_remove()  argument
596 	offset = (loff_t)(start - vma->vm_start)  in madvise_remove()
606 	if (userfaultfd_remove(vma, start, end)) {  in madvise_remove()
612 				offset, end - start);  in madvise_remove()
623 		unsigned long start, unsigned long end)  in madvise_inject_error()  argument
633 	for (; start < end; start += PAGE_SIZE << order) {  in madvise_inject_error()
637 		ret = get_user_pages_fast(start, 1, 0, &page);  in madvise_inject_error()
656 					pfn, start);  in madvise_inject_error()
665 				pfn, start);  in madvise_inject_error()
689 		unsigned long start, unsigned long end, int behavior)  in madvise_vma()  argument
693 		return madvise_remove(vma, prev, start, end);  in madvise_vma()
695 		return madvise_willneed(vma, prev, start, end);  in madvise_vma()
698 		return madvise_dontneed_free(vma, prev, start, end, behavior);  in madvise_vma()
700 		return madvise_behavior(vma, prev, start, end, behavior);  in madvise_vma()
801 SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)  in SYSCALL_DEFINE3()  argument
814 	if (start & ~PAGE_MASK)  in SYSCALL_DEFINE3()
822 	end = start + len;  in SYSCALL_DEFINE3()
823 	if (end < start)  in SYSCALL_DEFINE3()
827 	if (end == start)  in SYSCALL_DEFINE3()
832 		return madvise_inject_error(behavior, start, start + len_in);  in SYSCALL_DEFINE3()
848 	vma = find_vma_prev(current->mm, start, &prev);  in SYSCALL_DEFINE3()
849 	if (vma && start > vma->vm_start)  in SYSCALL_DEFINE3()
860 		if (start < vma->vm_start) {  in SYSCALL_DEFINE3()
862 			start = vma->vm_start;  in SYSCALL_DEFINE3()
863 			if (start >= end)  in SYSCALL_DEFINE3()
873 		error = madvise_vma(vma, &prev, start, tmp, behavior);  in SYSCALL_DEFINE3()
876 		start = tmp;  in SYSCALL_DEFINE3()
877 		if (prev && start < prev->vm_end)  in SYSCALL_DEFINE3()
878 			start = prev->vm_end;  in SYSCALL_DEFINE3()
880 		if (start >= end)  in SYSCALL_DEFINE3()
885 			vma = find_vma(current->mm, start);  in SYSCALL_DEFINE3()