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SUNRPC: split client creation routine into setup and registration

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This helper moves all "registration" code to the new rpc_client_register()
helper.
This helper will be used later in the series to synchronize against PipeFS
MOUNT/UMOUNT events.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Stanislav Kinsbursky 2013-06-24 11:52:52 +04:00 • committed by Trond Myklebust
commit e73f4cc051
1 changed files with 39 additions and 25 deletions
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64
net/sunrpc/clnt.c
View file

@ -281,14 +281,47 @@ static void rpc_clnt_set_nodename(struct rpc_clnt *clnt, const char *nodename)
memcpy(clnt->cl_nodename, nodename, clnt->cl_nodelen);
}
static int rpc_client_register(const struct rpc_create_args *args,
struct rpc_clnt *clnt)
{
const struct rpc_program *program = args->program;
struct rpc_auth *auth;
struct net *net = rpc_net_ns(clnt);
struct super_block *pipefs_sb;
int err = 0;
pipefs_sb = rpc_get_sb_net(net);
if (pipefs_sb) {
err = rpc_setup_pipedir(clnt, program->pipe_dir_name, pipefs_sb);
if (err)
goto out;
}
auth = rpcauth_create(args->authflavor, clnt);
if (IS_ERR(auth)) {
dprintk("RPC: Couldn't create auth handle (flavor %u)\n",
args->authflavor);
err = PTR_ERR(auth);
goto err_auth;
}
rpc_register_client(clnt);
out:
if (pipefs_sb)
rpc_put_sb_net(net);
return err;
err_auth:
__rpc_clnt_remove_pipedir(clnt);
goto out;
}
static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
{
const struct rpc_program *program = args->program;
const struct rpc_version *version;
struct rpc_clnt *clnt = NULL;
struct rpc_auth *auth;
int err;
struct super_block *pipefs_sb;
/* sanity check the name before trying to print it */
dprintk("RPC: creating %s client for %s (xprt %p)\n",
@ -347,34 +380,15 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
atomic_set(&clnt->cl_count, 1);
pipefs_sb = rpc_get_sb_net(rpc_net_ns(clnt));
if (pipefs_sb) {
err = rpc_setup_pipedir(clnt, program->pipe_dir_name, pipefs_sb);
if (err)
goto out_no_path;
}
auth = rpcauth_create(args->authflavor, clnt);
if (IS_ERR(auth)) {
dprintk("RPC: Couldn't create auth handle (flavor %u)\n",
args->authflavor);
err = PTR_ERR(auth);
goto out_no_auth;
}
/* save the nodename */
rpc_clnt_set_nodename(clnt, utsname()->nodename);
rpc_register_client(clnt);
if (pipefs_sb)
rpc_put_sb_net(rpc_net_ns(clnt));
err = rpc_client_register(args, clnt);
if (err)
goto out_no_path;
return clnt;
out_no_auth:
if (pipefs_sb)
__rpc_clnt_remove_pipedir(clnt);
out_no_path:
if (pipefs_sb)
rpc_put_sb_net(rpc_net_ns(clnt));
kfree(clnt->cl_principal);
out_no_principal:
rpc_free_iostats(clnt->cl_metrics);