[PATCH] RPC: Rename xprt_lock

 Clean-up: Replace the xprt_lock with something more aptly named.  This lock
 single-threads the XID and request slot reservation process.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:05:26 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index c4f903f..41ce296 100644 (file)
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -199,7 +199,7 @@ struct rpc_xprt {
         * Send stuff
         */
        spinlock_t              transport_lock; /* lock transport info */
-       spinlock_t              xprt_lock;      /* lock xprt info */
+       spinlock_t              reserve_lock;   /* lock slot table */
        struct rpc_task *       snd_task;       /* Task blocked in send */
 
        struct list_head        recv;

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 1f0da8c..9c45c52 100644 (file)
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -643,9 +643,9 @@ void xprt_reserve(struct rpc_task *task)
 
        task->tk_status = -EIO;
        if (!xprt->shutdown) {
-               spin_lock(&xprt->xprt_lock);
+               spin_lock(&xprt->reserve_lock);
                do_xprt_reserve(task);
-               spin_unlock(&xprt->xprt_lock);
+               spin_unlock(&xprt->reserve_lock);
        }
 }
 
@@ -698,10 +698,10 @@ void xprt_release(struct rpc_task *task)
 
        dprintk("RPC: %4d release request %p\n", task->tk_pid, req);
 
-       spin_lock(&xprt->xprt_lock);
+       spin_lock(&xprt->reserve_lock);
        list_add(&req->rq_list, &xprt->free);
        xprt_clear_backlog(xprt);
-       spin_unlock(&xprt->xprt_lock);
+       spin_unlock(&xprt->reserve_lock);
 }
 
 /**
@@ -751,7 +751,7 @@ static struct rpc_xprt *xprt_setup(int proto, struct sockaddr_in *ap, struct rpc
        }
 
        spin_lock_init(&xprt->transport_lock);
-       spin_lock_init(&xprt->xprt_lock);
+       spin_lock_init(&xprt->reserve_lock);
        init_waitqueue_head(&xprt->cong_wait);
 
        INIT_LIST_HEAD(&xprt->free);