expand vfsops for compat

[Alfred Perlstein]

Folks,

I'd like to grow some spares into the VFSOPS table before 10.x, see 
attached.

This will allow us to grow the vfsops during the 10.x cycle without 
breaking filesystems.


-- 
Alfred Perlstein

-------------- next part --------------
Index: sys/mount.h
===================================================================
--- sys/mount.h	(revision 254717)
+++ sys/mount.h	(working copy)
@@ -628,6 +628,12 @@
 	vfs_susp_clean_t	*vfs_susp_clean;
 	vfs_notify_lowervp_t	*vfs_reclaim_lowervp;
 	vfs_notify_lowervp_t	*vfs_unlink_lowervp;
+	vfs_mount_t		*vfs_spare1;
+	vfs_mount_t		*vfs_spare2;
+	vfs_mount_t		*vfs_spare3;
+	vfs_mount_t		*vfs_spare4;
+	vfs_mount_t		*vfs_spare5;
+	vfs_mount_t		*vfs_spare6;
 };
 
 vfs_statfs_t	__vfs_statfs;