SUNRPC: allow disabling idle timeout

In the gss-proxy case we don't want to have to reconnect at random--we
want to connect only on gss-proxy startup when we can steal gss-proxy's
context to do the connect in the right namespace.

So, provide a flag that allows the rpc_create caller to turn off the
idle timeout.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index e7d492c..bfe11be 100644 (file)
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -125,6 +125,7 @@ struct rpc_create_args {
 #define RPC_CLNT_CREATE_DISCRTRY       (1UL << 5)
 #define RPC_CLNT_CREATE_QUIET          (1UL << 6)
 #define RPC_CLNT_CREATE_INFINITE_SLOTS (1UL << 7)
+#define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT        (1UL << 8)
 
 struct rpc_clnt *rpc_create(struct rpc_create_args *args);
 struct rpc_clnt        *rpc_bind_new_program(struct rpc_clnt *,

diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index ff53924..cec7b9b 100644 (file)
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -256,6 +256,7 @@ static inline int bc_prealloc(struct rpc_rqst *req)
 #endif /* CONFIG_SUNRPC_BACKCHANNEL */
 
 #define XPRT_CREATE_INFINITE_SLOTS     (1U)
+#define XPRT_CREATE_NO_IDLE_TIMEOUT    (1U << 1)
 
 struct xprt_create {
        int                     ident;          /* XPRT_TRANSPORT identifier */

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 651245a..80cf232 100644 (file)
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -416,6 +416,8 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
 
        if (args->flags & RPC_CLNT_CREATE_INFINITE_SLOTS)
                xprtargs.flags |= XPRT_CREATE_INFINITE_SLOTS;
+       if (args->flags & RPC_CLNT_CREATE_NO_IDLE_TIMEOUT)
+               xprtargs.flags |= XPRT_CREATE_NO_IDLE_TIMEOUT;
        /*
         * If the caller chooses not to specify a hostname, whip
         * up a string representation of the passed-in address.

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 745fca3..095363e 100644 (file)
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1300,6 +1300,8 @@ found:
                                -PTR_ERR(xprt));
                goto out;
        }
+       if (args->flags & XPRT_CREATE_NO_IDLE_TIMEOUT)
+               xprt->idle_timeout = 0;
        INIT_WORK(&xprt->task_cleanup, xprt_autoclose);
        if (xprt_has_timer(xprt))
                setup_timer(&xprt->timer, xprt_init_autodisconnect,