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-rw-r--r--fs/nfs/nfs4proc.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 025116c66fef..c866e325577f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4881,6 +4881,20 @@ nfs4_init_uniform_client_string(const struct nfs_client *clp,
nodename);
}
+/*
+ * nfs4_callback_up_net() starts only "tcp" and "tcp6" callback
+ * services. Advertise one based on the address family of the
+ * clientaddr.
+ */
+static unsigned int
+nfs4_init_callback_netid(const struct nfs_client *clp, char *buf, size_t len)
+{
+ if (strchr(clp->cl_ipaddr, ':') != NULL)
+ return scnprintf(buf, len, "tcp6");
+ else
+ return scnprintf(buf, len, "tcp");
+}
+
/**
* nfs4_proc_setclientid - Negotiate client ID
* @clp: state data structure
@@ -4922,12 +4936,10 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
setclientid.sc_name,
sizeof(setclientid.sc_name));
/* cb_client4 */
- rcu_read_lock();
- setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
- sizeof(setclientid.sc_netid), "%s",
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_NETID));
- rcu_read_unlock();
+ setclientid.sc_netid_len =
+ nfs4_init_callback_netid(clp,
+ setclientid.sc_netid,
+ sizeof(setclientid.sc_netid));
setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr,
sizeof(setclientid.sc_uaddr), "%s.%u.%u",
clp->cl_ipaddr, port >> 8, port & 255);
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