libceph: update osd request/reply encoding

Use the new version of the encoding for osd requests and replies.  In the
process, update the way we are tracking request ops and reply lengths and
results in the struct ceph_osd_request.  Update the rbd and fs/ceph users
appropriately.

The main changes are:
 - we keep pointers into the request memory for fields we need to update
   each time the request is sent out over the wire
 - we keep information about the result in an array in the request struct
   where the users can easily get at it.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index ad8899fc3157..1dd5d466b6f9 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -47,6 +47,9 @@ struct ceph_osd {
 	struct list_head o_keepalive_item;
 };
 
+
+#define CEPH_OSD_MAX_OP 10
+
 /* an in-flight request */
 struct ceph_osd_request {
 	u64             r_tid;              /* unique for this client */
@@ -63,9 +66,23 @@ struct ceph_osd_request {
 	struct ceph_connection *r_con_filling_msg;
 
 	struct ceph_msg  *r_request, *r_reply;
-	int               r_result;
 	int               r_flags;     /* any additional flags for the osd */
 	u32               r_sent;      /* >0 if r_request is sending/sent */
+	int               r_num_ops;
+
+	/* encoded message content */
+	struct ceph_osd_op *r_request_ops;
+	/* these are updated on each send */
+	__le32           *r_request_osdmap_epoch;
+	__le32           *r_request_flags;
+	__le64           *r_request_pool;
+	void             *r_request_pgid;
+	__le32           *r_request_attempts;
+	struct ceph_eversion *r_request_reassert_version;
+
+	int               r_result;
+	int               r_reply_op_len[CEPH_OSD_MAX_OP];
+	s32               r_reply_op_result[CEPH_OSD_MAX_OP];
 	int               r_got_reply;
 	int		  r_linger;