-Index: linux-2.6.18.8/include/linux/fs.h
+The i_filterdata is currently only used by the size-on-mds to store the
+epoch number for the inode. This could be moved to another field in
+ldiskfs or elsewhere in the inode that isn't used by Lustre callers.
+
+Index: linux-2.6.18-128.1.6/include/linux/fs.h
===================================================================
---- linux-2.6.18.8.orig/include/linux/fs.h 2007-06-05 12:55:19.000000000 +0200
-+++ linux-2.6.18.8/include/linux/fs.h 2007-06-05 12:55:44.000000000 +0200
-@@ -533,6 +533,7 @@ struct inode {
- struct block_device *i_bdev;
- struct cdev *i_cdev;
+--- linux-2.6.18-128.1.6.orig/include/linux/fs.h 2009-04-14 21:05:43.000000000 -0600
++++ linux-2.6.18-128.1.6/include/linux/fs.h 2009-06-02 23:21:44.000000000 -0600
+@@ -580,6 +580,7 @@
+ struct cdev *i_cdev;
+ };
int i_cindex;
+ void *i_filterdata;