error = -ENOMEM;
if (!vma)
goto out;
- prev = vma->vm_prev;
+
if (unlikely(grows & PROT_GROWSDOWN)) {
if (vma->vm_start >= end)
goto out;
goto out;
}
}
+
if (start > vma->vm_start)
prev = vma;
+ else
+ prev = vma->vm_prev;
for (nstart = start ; ; ) {
unsigned long mask_off_old_flags;