svc: Change the svc_sock in the rqstp structure to a transport

The rqstp structure contains a pointer to the transport for the
RPC request. This functionaly trivial patch adds an unamed union
with pointers to both svc_sock and svc_xprt. Ultimately the
union will be removed and only the rq_xprt field will remain. This
allows incrementally extracting transport independent interfaces without
one gigundo patch.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Greg Banks <gnb@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 8531a70da73d..37f7448c997e 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -204,7 +204,10 @@ union svc_addr_u {
 struct svc_rqst {
         struct list_head        rq_list;        /* idle list */
         struct list_head        rq_all;         /* all threads list */
-        struct svc_sock *       rq_sock;        /* socket */
+        union {
+                struct svc_xprt *       rq_xprt;        /* transport ptr */
+                struct svc_sock *       rq_sock;        /* socket ptr */
+        };
         struct sockaddr_storage rq_addr;        /* peer address */
         size_t                  rq_addrlen;