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Diffstat (limited to 'fs/nfs/callback.c')
-rw-r--r--fs/nfs/callback.c31
1 files changed, 16 insertions, 15 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 3e634f2a1083..a886e692ddd0 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -38,19 +38,10 @@ static struct svc_program nfs4_callback_program;
unsigned int nfs_callback_set_tcpport;
unsigned short nfs_callback_tcpport;
+unsigned short nfs_callback_tcpport6;
static const int nfs_set_port_min = 0;
static const int nfs_set_port_max = 65535;
-/*
- * If the kernel has IPv6 support available, always listen for
- * both AF_INET and AF_INET6 requests.
- */
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static const sa_family_t nfs_callback_family = AF_INET6;
-#else
-static const sa_family_t nfs_callback_family = AF_INET;
-#endif
-
static int param_set_port(const char *val, struct kernel_param *kp)
{
char *endp;
@@ -116,19 +107,29 @@ int nfs_callback_up(void)
mutex_lock(&nfs_callback_mutex);
if (nfs_callback_info.users++ || nfs_callback_info.task != NULL)
goto out;
- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE,
- nfs_callback_family, NULL);
+ serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
ret = -ENOMEM;
if (!serv)
goto out_err;
- ret = svc_create_xprt(serv, "tcp", nfs_callback_set_tcpport,
- SVC_SOCK_ANONYMOUS);
+ ret = svc_create_xprt(serv, "tcp", PF_INET,
+ nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
if (ret <= 0)
goto out_err;
nfs_callback_tcpport = ret;
dprintk("NFS: Callback listener port = %u (af %u)\n",
- nfs_callback_tcpport, nfs_callback_family);
+ nfs_callback_tcpport, PF_INET);
+
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ ret = svc_create_xprt(serv, "tcp", PF_INET6,
+ nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
+ if (ret > 0) {
+ nfs_callback_tcpport6 = ret;
+ dprintk("NFS: Callback listener port = %u (af %u)\n",
+ nfs_callback_tcpport6, PF_INET6);
+ } else if (ret != -EAFNOSUPPORT)
+ goto out_err;
+#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
nfs_callback_info.rqst = svc_prepare_thread(serv, &serv->sv_pools[0]);
if (IS_ERR(nfs_callback_info.rqst)) {