Subject: spufs: export expand_stack

From: Arnd Bergmann <arnd.bergmann@de.ibm.com>
An SPU can create page faults on the stack, which we need to handle
from a loadable module, so export the expand_stack function used
for this.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

Index: linux-2.6/mm/mmap.c
===================================================================
--- linux-2.6.orig/mm/mmap.c
+++ linux-2.6/mm/mmap.c
@@ -1652,6 +1652,7 @@ find_extend_vma(struct mm_struct * mm, u
 	return vma;
 }
 #endif
+EXPORT_SYMBOL_GPL(expand_stack);
 
 /*
  * Ok - we have the memory areas we should free on the vma list,