SUNRPC: Make the transport-specific setup routine allocate rpc_xprt

Change the location where the rpc_xprt structure is allocated so each
transport implementation can allocate a private area from the same
chunk of memory.

Note also that xprt->ops->destroy, rather than xprt_destroy, is now
responsible for freeing rpc_xprt when the transport is destroyed.

Test plan:
Connectathon.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 0321fb53bd02..d7919010863d 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -265,8 +265,8 @@ void			xprt_disconnect(struct rpc_xprt *xprt);
 /*
  * Socket transport setup operations
  */
-int                     xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to);
-int                     xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to);
+struct rpc_xprt *       xs_setup_udp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to);
+struct rpc_xprt *       xs_setup_tcp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to);
 
 /*
  * Reserved bit positions in xprt->state