SUNRPC: Add a per-rpc_clnt spinlock

Use that to protect the rpc_clnt->cl_tasks list instead of using a global
lock.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 6631ece14983..424dfdc6862c 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -149,6 +149,7 @@ static struct rpc_clnt * rpc_new_client(struct rpc_xprt *xprt, char *servname, s
                 goto out_no_stats;
         clnt->cl_program  = program;
         INIT_LIST_HEAD(&clnt->cl_tasks);
+        spin_lock_init(&clnt->cl_lock);
 
         if (!xprt_bound(clnt->cl_xprt))
                 clnt->cl_autobind = 1;
@@ -286,6 +287,7 @@ rpc_clone_client(struct rpc_clnt *clnt)
         new->cl_oneshot = 0;
         new->cl_dead = 0;
         INIT_LIST_HEAD(&new->cl_tasks);
+        spin_lock_init(&new->cl_lock);
         rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
         if (new->cl_auth)
                 atomic_inc(&new->cl_auth->au_count);