ceph: display pgid in debugfs osd request dump

Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/osd_client.h b/fs/ceph/osd_client.h
index 8fef71c..4162c68 100644
--- a/fs/ceph/osd_client.h
+++ b/fs/ceph/osd_client.h
@@ -42,6 +42,7 @@
 	struct rb_node  r_node;
 	struct list_head r_osd_item;
 	struct ceph_osd *r_osd;
+	struct ceph_pg   r_pgid;
 
 	struct ceph_connection *r_con_filling_pages;