libceph: replace message data pointer with list
In place of the message data pointer, use a list head which links
through message data items. For now we only support a single entry
on that list.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 8846ff6..318da01 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -89,6 +89,7 @@
}
struct ceph_msg_data {
+ struct list_head links; /* ceph_msg->data */
enum ceph_msg_data_type type;
union {
#ifdef CONFIG_BLOCK
@@ -143,7 +144,7 @@
struct ceph_buffer *middle;
size_t data_length;
- struct ceph_msg_data *data;
+ struct list_head data;
struct ceph_msg_data_cursor cursor;
struct ceph_connection *con;