diff options
Diffstat (limited to 'fs/nfs/client.c')
| -rw-r--r-- | fs/nfs/client.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 34c3996bd0f..5fea638743e 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -232,11 +232,15 @@ void nfs_put_client(struct nfs_client *clp) * Find a client by address * - caller must hold nfs_client_lock */ -static struct nfs_client *__nfs_find_client(const struct sockaddr_in *addr, int nfsversion) +static struct nfs_client *__nfs_find_client(const struct sockaddr_in *addr, int nfsversion, int match_port) { struct nfs_client *clp; list_for_each_entry(clp, &nfs_client_list, cl_share_link) { + /* Don't match clients that failed to initialise properly */ + if (clp->cl_cons_state < 0) + continue; + /* Different NFS versions cannot share the same nfs_client */ if (clp->cl_nfsversion != nfsversion) continue; @@ -245,7 +249,7 @@ static struct nfs_client *__nfs_find_client(const struct sockaddr_in *addr, int sizeof(clp->cl_addr.sin_addr)) != 0) continue; - if (clp->cl_addr.sin_port == addr->sin_port) + if (!match_port || clp->cl_addr.sin_port == addr->sin_port) goto found; } @@ -265,11 +269,12 @@ struct nfs_client *nfs_find_client(const struct sockaddr_in *addr, int nfsversio struct nfs_client *clp; spin_lock(&nfs_client_lock); - clp = __nfs_find_client(addr, nfsversion); + clp = __nfs_find_client(addr, nfsversion, 0); spin_unlock(&nfs_client_lock); - - BUG_ON(clp && clp->cl_cons_state == 0); - + if (clp != NULL && clp->cl_cons_state != NFS_CS_READY) { + nfs_put_client(clp); + clp = NULL; + } return clp; } @@ -292,7 +297,7 @@ static struct nfs_client *nfs_get_client(const char *hostname, do { spin_lock(&nfs_client_lock); - clp = __nfs_find_client(addr, nfsversion); + clp = __nfs_find_client(addr, nfsversion, 1); if (clp) goto found_client; if (new) @@ -849,6 +854,7 @@ error: */ static int nfs4_init_client(struct nfs_client *clp, int proto, int timeo, int retrans, + const char *ip_addr, rpc_authflavor_t authflavour) { int error; @@ -865,6 +871,7 @@ static int nfs4_init_client(struct nfs_client *clp, error = nfs_create_rpc_client(clp, proto, timeo, retrans, authflavour); if (error < 0) goto error; + memcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr)); error = nfs_idmap_new(clp); if (error < 0) { @@ -888,6 +895,7 @@ error: */ static int nfs4_set_client(struct nfs_server *server, const char *hostname, const struct sockaddr_in *addr, + const char *ip_addr, rpc_authflavor_t authflavour, int proto, int timeo, int retrans) { @@ -902,7 +910,7 @@ static int nfs4_set_client(struct nfs_server *server, error = PTR_ERR(clp); goto error; } - error = nfs4_init_client(clp, proto, timeo, retrans, authflavour); + error = nfs4_init_client(clp, proto, timeo, retrans, ip_addr, authflavour); if (error < 0) goto error_put; @@ -971,7 +979,7 @@ struct nfs_server *nfs4_create_server(const struct nfs4_mount_data *data, return ERR_PTR(-ENOMEM); /* Get a client record */ - error = nfs4_set_client(server, hostname, addr, authflavour, + error = nfs4_set_client(server, hostname, addr, ip_addr, authflavour, data->proto, data->timeo, data->retrans); if (error < 0) goto error; @@ -1041,6 +1049,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data, /* Get a client representation. * Note: NFSv4 always uses TCP, */ error = nfs4_set_client(server, data->hostname, data->addr, + parent_client->cl_ipaddr, data->authflavor, parent_server->client->cl_xprt->prot, parent_client->retrans_timeo, |