498 static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,  in mlock_fixup()  argument
512 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,  in mlock_fixup()
514 	if (*prev) {  in mlock_fixup()
515 		vma = *prev;  in mlock_fixup()
552 	*prev = vma;  in mlock_fixup()
559 	struct vm_area_struct * vma, * prev;  in do_mlock()  local
573 	prev = vma->vm_prev;  in do_mlock()
575 		prev = vma;  in do_mlock()
589 		error = mlock_fixup(vma, &prev, nstart, tmp, newflags);  in do_mlock()
593 		if (nstart < prev->vm_end)  in do_mlock()
594 			nstart = prev->vm_end;  in do_mlock()
598 		vma = prev->vm_next;  in do_mlock()
659 	struct vm_area_struct * vma, * prev = NULL;  in do_mlockall()  local
668 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {  in do_mlockall()
676 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);  in do_mlockall()