diff options
| -rw-r--r-- | fs/nfs/callback.c | 133 | ||||
| -rw-r--r-- | fs/nfs/nfs4client.c | 2 |
2 files changed, 87 insertions, 48 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 18efeb5f005d..a53b4e53d5dd 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -39,6 +39,32 @@ static struct svc_program nfs4_callback_program; unsigned short nfs_callback_tcpport6; +static int nfs4_callback_up_net(struct svc_serv *serv, struct net *net) +{ + int ret; + + ret = svc_create_xprt(serv, "tcp", net, 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, net %p)\n", + nfs_callback_tcpport, PF_INET, net); + + ret = svc_create_xprt(serv, "tcp", net, PF_INET6, + nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS); + if (ret > 0) { + nfs_callback_tcpport6 = ret; + dprintk("NFS: Callback listener port = %u (af %u, net %p)\n", + nfs_callback_tcpport6, PF_INET6, net); + } else if (ret != -EAFNOSUPPORT) + goto out_err; + return 0; + +out_err: + return (ret) ? ret : -ENOMEM; +} + /* * This is the NFSv4 callback kernel thread. */ @@ -80,36 +106,21 @@ nfs4_callback_svc(void *vrqstp) static struct svc_rqst * nfs4_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt) { - int ret; - - ret = svc_create_xprt(serv, "tcp", &init_net, 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, PF_INET); - - ret = svc_create_xprt(serv, "tcp", &init_net, 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) - ret = 0; - else - goto out_err; - return svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE); - -out_err: - if (ret == 0) - ret = -ENOMEM; - return ERR_PTR(ret); } #if defined(CONFIG_NFS_V4_1) +static int nfs41_callback_up_net(struct svc_serv *serv, struct net *net) +{ + /* + * Create an svc_sock for the back channel service that shares the + * fore channel connection. + * Returns the input port (0) and sets the svc_serv bc_xprt on success + */ + return svc_create_xprt(serv, "tcp-bc", net, PF_INET, 0, + SVC_SOCK_ANONYMOUS); +} + /* * The callback service for NFSv4.1 callbacks */ @@ -152,19 +163,6 @@ static struct svc_rqst * nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt) { struct svc_rqst *rqstp; - int ret; - - /* - * Create an svc_sock for the back channel service that shares the - * fore channel connection. - * Returns the input port (0) and sets the svc_serv bc_xprt on success - */ - ret = svc_create_xprt(serv, "tcp-bc", &init_net, PF_INET, 0, - SVC_SOCK_ANONYMOUS); - if (ret < 0) { - rqstp = ERR_PTR(ret); - goto out; - } /* * Save the svc_serv in the transport so that it can @@ -180,7 +178,6 @@ nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt) svc_xprt_put(serv->sv_bc_xprt); serv->sv_bc_xprt = NULL; } -out: dprintk("--> %s return %ld\n", __func__, IS_ERR(rqstp) ? PTR_ERR(rqstp) : 0); return rqstp; @@ -204,6 +201,11 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, xprt->bc_serv = cb_info->serv; } #else +static int nfs41_callback_up_net(struct svc_serv *serv, struct net *net) +{ + return 0; +} + static inline int nfs_minorversion_callback_svc_setup(u32 minorversion, struct svc_serv *serv, struct rpc_xprt *xprt, struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp)) @@ -217,6 +219,44 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, } #endif /* CONFIG_NFS_V4_1 */ +static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct net *net) +{ + int ret; + + dprintk("NFS: create per-net callback data; net=%p\n", net); + + ret = svc_bind(serv, net); + if (ret < 0) { + printk(KERN_WARNING "NFS: bind callback service failed\n"); + goto err_bind; + } + + switch (minorversion) { + case 0: + ret = nfs4_callback_up_net(serv, net); + break; + case 1: + ret = nfs41_callback_up_net(serv, net); + break; + default: + printk(KERN_ERR "NFS: unknown callback version: %d\n", + minorversion); + ret = -EINVAL; + break; + } + + if (ret < 0) { + printk(KERN_ERR "NFS: callback service start failed\n"); + goto err_socks; + } + return 0; + +err_socks: + svc_rpcb_cleanup(serv, net); +err_bind: + return ret; +} + static struct svc_serv *nfs_callback_create_svc(int minorversion) { struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion]; @@ -267,7 +307,7 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt) char svc_name[12]; int ret = 0; int minorversion_setup; - struct net *net = &init_net; + struct net *net = xprt->xprt_net; mutex_lock(&nfs_callback_mutex); @@ -282,11 +322,9 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt) goto out; } - ret = svc_bind(serv, net); - if (ret < 0) { - printk(KERN_WARNING "NFS: bind callback service failed\n"); - goto out_err; - } + ret = nfs_callback_up_net(minorversion, serv, net); + if (ret < 0) + goto err_net; minorversion_setup = nfs_minorversion_callback_svc_setup(minorversion, serv, xprt, &rqstp, &callback_svc); @@ -326,10 +364,11 @@ err_create: mutex_unlock(&nfs_callback_mutex); return ret; out_err: + svc_shutdown_net(serv, net); +err_net: dprintk("NFS: Couldn't create callback socket or server thread; " "err = %d\n", ret); cb_info->users--; - svc_shutdown_net(serv, net); goto out; } diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 088a7d2e2ecb..612f5ebaabac 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -84,7 +84,7 @@ error: static void nfs4_destroy_callback(struct nfs_client *clp) { if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state)) - nfs_callback_down(clp->cl_mvops->minor_version, &init_net); + nfs_callback_down(clp->cl_mvops->minor_version, clp->cl_net); } static void nfs4_shutdown_client(struct nfs_client *clp) |