nommu: stub expand_stack() for nommu case

Be consistent with VM mmap, implement expand_stack(). We can't actually do anything other than return an error in the no MMU case though. Signed-off-by: Greg Ungerer <[email protected]> Cc: David Howells <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Jul 16, 2007 · 57c8f63 · 57c8f63
1 parent 54a3bdd
commit 57c8f63
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/mm/nommu.c b/mm/nommu.c
@@ -367,6 +367,11 @@ struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
 	return find_vma(mm, addr);
 }
 
+int expand_stack(struct vm_area_struct *vma, unsigned long address)
+{
+	return -ENOMEM;
+}
+
 /*
  * look up the first VMA exactly that exactly matches addr
  * - should be called with mm->mmap_sem at least held readlocked