1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 5860dd0c2caf..14862438faff 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -95,6 +95,12 @@ static __inline__ bool ceph_msg_data_type_valid(enum ceph_msg_data_type type)
         }
 }
 
+struct ceph_msg_data_cursor {
+        bool            last_piece;     /* now at last piece of data item */
+        struct page     *page;          /* current page in pagelist */
+        size_t          offset;         /* pagelist bytes consumed */
+};
+
 struct ceph_msg_data {
         enum ceph_msg_data_type         type;
         union {
@@ -112,6 +118,7 @@ struct ceph_msg_data {
                 };
                 struct ceph_pagelist    *pagelist;
         };
+        struct ceph_msg_data_cursor     cursor;         /* pagelist only */
 };
 
 /*