[GFS2] Make headers compile on their own
As per Jan Engelhardt's comments, this should make all the headers
compile on their own by including and/or declaring structures
early.
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_vm.h b/fs/gfs2/ops_vm.h
index d5ba4b9..4ae8f43 100644
--- a/fs/gfs2/ops_vm.h
+++ b/fs/gfs2/ops_vm.h
@@ -10,6 +10,8 @@
#ifndef __OPS_VM_DOT_H__
#define __OPS_VM_DOT_H__
+#include <linux/mm.h>
+
extern struct vm_operations_struct gfs2_vm_ops_private;
extern struct vm_operations_struct gfs2_vm_ops_sharewrite;