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SUNRPC: rpcauth_create needs to know about rpc_clnt clone status 

Ensure that we set rpc_clnt->cl_parent before calling rpc_client_register
so that rpcauth_create can find any existing RPCSEC_GSS caches for this
transport.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-09-02 13:28:04 -04:00
parent eb6dc19d8e
commit 280ebcf97c
1 changed files with 8 additions and 7 deletions
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15
net/sunrpc/clnt.c
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@ -313,7 +313,9 @@ out:
return err;
}
static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args,
struct rpc_xprt *xprt,
struct rpc_clnt *parent)
{
const struct rpc_program *program = args->program;
const struct rpc_version *version;
@ -339,7 +341,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
clnt = kzalloc(sizeof(*clnt), GFP_KERNEL);
if (!clnt)
goto out_err;
clnt->cl_parent = clnt;
clnt->cl_parent = parent ? : clnt;
rcu_assign_pointer(clnt->cl_xprt, xprt);
clnt->cl_procinfo = version->procs;
@ -377,6 +379,8 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
err = rpc_client_register(args, clnt);
if (err)
goto out_no_path;
if (parent)
atomic_inc(&parent->cl_count);
return clnt;
out_no_path:
@ -467,7 +471,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
if (args->flags & RPC_CLNT_CREATE_NONPRIVPORT)
xprt->resvport = 0;
clnt = rpc_new_client(args, xprt);
clnt = rpc_new_client(args, xprt, NULL);
if (IS_ERR(clnt))
return clnt;
@ -514,15 +518,12 @@ static struct rpc_clnt *__rpc_clone_client(struct rpc_create_args *args,
goto out_err;
args->servername = xprt->servername;
new = rpc_new_client(args, xprt);
new = rpc_new_client(args, xprt, clnt);
if (IS_ERR(new)) {
err = PTR_ERR(new);
goto out_err;
}
atomic_inc(&clnt->cl_count);
new->cl_parent = clnt;
/* Turn off autobind on clones */
new->cl_autobind = 0;
new->cl_softrtry = clnt->cl_softrtry;