libceph: make r_request msg_size calculation clearer
Although msg_size is calculated correctly, the terms are grouped in
a misleading way - snaps appears to not have room for a u32 length.
Move calculation closer to its use and regroup terms.
No functional change.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 1048edb..109d1f8 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -372,16 +372,6 @@
BUILD_BUG_ON(CEPH_OSD_MAX_OP > U16_MAX);
BUG_ON(num_ops > CEPH_OSD_MAX_OP);
- msg_size = 4 + 4 + 8 + 8 + 4+8;
- msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */
- msg_size += 1 + 8 + 4 + 4; /* pg_t */
- msg_size += 4 + CEPH_MAX_OID_NAME_LEN; /* oid */
- msg_size += 2 + num_ops*sizeof(struct ceph_osd_op);
- msg_size += 8; /* snapid */
- msg_size += 8; /* snap_seq */
- msg_size += 8 * (snapc ? snapc->num_snaps : 0); /* snaps */
- msg_size += 4;
-
if (use_mempool) {
req = mempool_alloc(osdc->req_mempool, gfp_flags);
memset(req, 0, sizeof(*req));
@@ -420,6 +410,17 @@
}
req->r_reply = msg;
+ msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */
+ msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */
+ msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */
+ msg_size += 1 + 8 + 4 + 4; /* pgid */
+ msg_size += 4 + CEPH_MAX_OID_NAME_LEN; /* oid */
+ msg_size += 2 + num_ops * sizeof(struct ceph_osd_op);
+ msg_size += 8; /* snapid */
+ msg_size += 8; /* snap_seq */
+ msg_size += 4 + 8 * (snapc ? snapc->num_snaps : 0); /* snaps */
+ msg_size += 4; /* retry_attempt */
+
/* create request message; allow space for oid */
if (use_mempool)
msg = ceph_msgpool_get(&osdc->msgpool_op, 0);