89 	unsigned long start;  member
102 	unsigned long start;  member
112 	unsigned long start, len;  in userfaultfd_wake_function()  local
117 	start = range->start;  in userfaultfd_wake_function()
119 	if (len && (start > uwq->msg.arg.pagefault.address ||  in userfaultfd_wake_function()
120 		    start + len <= uwq->msg.arg.pagefault.address))  in userfaultfd_wake_function()
791 			unsigned long start, unsigned long end)  in userfaultfd_remove()  argument
808 	ewq.msg.arg.remove.start = start;  in userfaultfd_remove()
817 			  unsigned long start, unsigned long end)  in has_unmap_ctx()  argument
822 		if (unmap_ctx->ctx == ctx && unmap_ctx->start == start &&  in has_unmap_ctx()
830 			   unsigned long start, unsigned long end,  in userfaultfd_unmap_prep()  argument
838 		    has_unmap_ctx(ctx, unmaps, start, end))  in userfaultfd_unmap_prep()
848 		unmap_ctx->start = start;  in userfaultfd_unmap_prep()
865 		ewq.msg.arg.remove.start = ctx->start;  in userfaultfd_unmap_complete()
1276 					  __u64 *start, __u64 len)  in validate_range()  argument
1280 	*start = untagged_addr(*start);  in validate_range()
1282 	if (*start & ~PAGE_MASK)  in validate_range()
1288 	if (*start < mmap_min_addr)  in validate_range()
1290 	if (*start >= task_size)  in validate_range()
1292 	if (len > task_size - *start)  in validate_range()
1314 	unsigned long start, end, vma_end;  in userfaultfd_register()  local
1342 	ret = validate_range(mm, &uffdio_register.range.start,  in userfaultfd_register()
1347 	start = uffdio_register.range.start;  in userfaultfd_register()
1348 	end = start + uffdio_register.range.len;  in userfaultfd_register()
1357 	vma = find_vma_prev(mm, start, &prev);  in userfaultfd_register()
1373 		if (start & (vma_hpagesize - 1))  in userfaultfd_register()
1440 	if (vma->vm_start < start)  in userfaultfd_register()
1460 		if (vma->vm_start > start)  in userfaultfd_register()
1461 			start = vma->vm_start;  in userfaultfd_register()
1465 		prev = vma_merge(mm, prev, start, vma_end, new_flags,  in userfaultfd_register()
1474 		if (vma->vm_start < start) {  in userfaultfd_register()
1475 			ret = split_vma(mm, vma, start, 1);  in userfaultfd_register()
1495 		start = vma->vm_end;  in userfaultfd_register()
1525 	unsigned long start, end, vma_end;  in userfaultfd_unregister()  local
1532 	ret = validate_range(mm, &uffdio_unregister.start,  in userfaultfd_unregister()
1537 	start = uffdio_unregister.start;  in userfaultfd_unregister()
1538 	end = start + uffdio_unregister.len;  in userfaultfd_unregister()
1547 	vma = find_vma_prev(mm, start, &prev);  in userfaultfd_unregister()
1563 		if (start & (vma_hpagesize - 1))  in userfaultfd_unregister()
1592 	if (vma->vm_start < start)  in userfaultfd_unregister()
1610 		if (vma->vm_start > start)  in userfaultfd_unregister()
1611 			start = vma->vm_start;  in userfaultfd_unregister()
1622 			range.start = start;  in userfaultfd_unregister()
1623 			range.len = vma_end - start;  in userfaultfd_unregister()
1628 		prev = vma_merge(mm, prev, start, vma_end, new_flags,  in userfaultfd_unregister()
1637 		if (vma->vm_start < start) {  in userfaultfd_unregister()
1638 			ret = split_vma(mm, vma, start, 1);  in userfaultfd_unregister()
1658 		start = vma->vm_end;  in userfaultfd_unregister()
1684 	ret = validate_range(ctx->mm, &uffdio_wake.start, uffdio_wake.len);  in userfaultfd_wake()
1688 	range.start = uffdio_wake.start;  in userfaultfd_wake()
1752 		range.start = uffdio_copy.dst;  in userfaultfd_copy()
1780 	ret = validate_range(ctx->mm, &uffdio_zeropage.range.start,  in userfaultfd_zeropage()
1789 		ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start,  in userfaultfd_zeropage()
1804 		range.start = uffdio_zeropage.range.start;  in userfaultfd_zeropage()