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 <gerg@uclinux.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/nommu.c b/mm/nommu.c
index 989e2e9..8bbbf14 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -367,6 +367,11 @@
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