switch (m->mode) {
case SVC_POOL_PERCPU:
{
- set_cpus_allowed_ptr(task, &cpumask_of_cpu(node));
+ set_cpus_allowed_ptr(task, cpumask_of(node));
break;
}
case SVC_POOL_PERNODE:
{
- node_to_cpumask_ptr(nodecpumask, node);
- set_cpus_allowed_ptr(task, nodecpumask);
+ set_cpus_allowed_ptr(task, cpumask_of_node(node));
break;
}
}
*/
static struct svc_serv *
__svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
- sa_family_t family, void (*shutdown)(struct svc_serv *serv))
+ void (*shutdown)(struct svc_serv *serv))
{
struct svc_serv *serv;
unsigned int vers;
if (!(serv = kzalloc(sizeof(*serv), GFP_KERNEL)))
return NULL;
- serv->sv_family = family;
serv->sv_name = prog->pg_name;
serv->sv_program = prog;
serv->sv_nrthreads = 1;
struct svc_serv *
svc_create(struct svc_program *prog, unsigned int bufsize,
- sa_family_t family, void (*shutdown)(struct svc_serv *serv))
+ void (*shutdown)(struct svc_serv *serv))
{
- return __svc_create(prog, bufsize, /*npools*/1, family, shutdown);
+ return __svc_create(prog, bufsize, /*npools*/1, shutdown);
}
-EXPORT_SYMBOL(svc_create);
+EXPORT_SYMBOL_GPL(svc_create);
struct svc_serv *
svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
- sa_family_t family, void (*shutdown)(struct svc_serv *serv),
+ void (*shutdown)(struct svc_serv *serv),
svc_thread_fn func, struct module *mod)
{
struct svc_serv *serv;
unsigned int npools = svc_pool_map_get();
- serv = __svc_create(prog, bufsize, npools, family, shutdown);
+ serv = __svc_create(prog, bufsize, npools, shutdown);
if (serv != NULL) {
serv->sv_function = func;
return serv;
}
-EXPORT_SYMBOL(svc_create_pooled);
+EXPORT_SYMBOL_GPL(svc_create_pooled);
/*
* Destroy an RPC service. Should be called with appropriate locking to
kfree(serv->sv_pools);
kfree(serv);
}
-EXPORT_SYMBOL(svc_destroy);
+EXPORT_SYMBOL_GPL(svc_destroy);
/*
* Allocate an RPC server's buffer space.
out_enomem:
return ERR_PTR(-ENOMEM);
}
-EXPORT_SYMBOL(svc_prepare_thread);
+EXPORT_SYMBOL_GPL(svc_prepare_thread);
/*
* Choose a pool in which to create a new thread, for svc_set_num_threads
return error;
}
-EXPORT_SYMBOL(svc_set_num_threads);
+EXPORT_SYMBOL_GPL(svc_set_num_threads);
/*
* Called from a server thread as it's exiting. Caller must hold the BKL or
if (serv)
svc_destroy(serv);
}
-EXPORT_SYMBOL(svc_exit_thread);
+EXPORT_SYMBOL_GPL(svc_exit_thread);
-#ifdef CONFIG_SUNRPC_REGISTER_V4
/*
- * Registering kernel RPC services with rpcbind version 2 will work
- * over either IPv4 or IPv6, since the Linux kernel always registers
- * services for the "any" address.
+ * Register an "inet" protocol family netid with the local
+ * rpcbind daemon via an rpcbind v4 SET request.
*
- * However, the local rpcbind daemon listens on either only AF_INET
- * or AF_INET6 (never both). When it listens on AF_INET6, an rpcbind
- * version 2 registration will result in registering the service at
- * IN6ADDR_ANY, even if the RPC service being registered is not
- * IPv6-enabled.
+ * No netconfig infrastructure is available in the kernel, so
+ * we map IP_ protocol numbers to netids by hand.
*
- * Rpcbind version 4 allows us to be a little more specific. Kernel
- * RPC services that don't yet support AF_INET6 can register
- * themselves as IPv4-only with the local rpcbind daemon, even if the
- * daemon is listening only on AF_INET6.
- *
- * And, registering IPv6-enabled kernel RPC services via AF_INET6
- * verifies that the local user space rpcbind daemon is properly
- * configured to support remote AF_INET6 rpcbind requests.
- *
- * An AF_INET6 registration request will fail if the local rpcbind
- * daemon is not set up to listen on AF_INET6. Likewise, we fail
- * AF_INET6 registration requests if svc_register() is configured to
- * support only rpcbind version 2.
+ * Returns zero on success; a negative errno value is returned
+ * if any error occurs.
*/
-static int __svc_register(const u32 program, const u32 version,
- const sa_family_t family,
- const unsigned short protocol,
- const unsigned short port)
+static int __svc_rpcb_register4(const u32 program, const u32 version,
+ const unsigned short protocol,
+ const unsigned short port)
{
- struct sockaddr_in sin = {
+ const struct sockaddr_in sin = {
.sin_family = AF_INET,
.sin_addr.s_addr = htonl(INADDR_ANY),
.sin_port = htons(port),
};
- struct sockaddr_in6 sin6 = {
+ const char *netid;
+ int error;
+
+ switch (protocol) {
+ case IPPROTO_UDP:
+ netid = RPCBIND_NETID_UDP;
+ break;
+ case IPPROTO_TCP:
+ netid = RPCBIND_NETID_TCP;
+ break;
+ default:
+ return -ENOPROTOOPT;
+ }
+
+ error = rpcb_v4_register(program, version,
+ (const struct sockaddr *)&sin, netid);
+
+ /*
+ * User space didn't support rpcbind v4, so retry this
+ * registration request with the legacy rpcbind v2 protocol.
+ */
+ if (error == -EPROTONOSUPPORT)
+ error = rpcb_register(program, version, protocol, port);
+
+ return error;
+}
+
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+/*
+ * Register an "inet6" protocol family netid with the local
+ * rpcbind daemon via an rpcbind v4 SET request.
+ *
+ * No netconfig infrastructure is available in the kernel, so
+ * we map IP_ protocol numbers to netids by hand.
+ *
+ * Returns zero on success; a negative errno value is returned
+ * if any error occurs.
+ */
+static int __svc_rpcb_register6(const u32 program, const u32 version,
+ const unsigned short protocol,
+ const unsigned short port)
+{
+ const struct sockaddr_in6 sin6 = {
.sin6_family = AF_INET6,
.sin6_addr = IN6ADDR_ANY_INIT,
.sin6_port = htons(port),
};
- struct sockaddr *sap;
- char *netid;
+ const char *netid;
+ int error;
- switch (family) {
- case AF_INET:
- sap = (struct sockaddr *)&sin;
- netid = RPCBIND_NETID_TCP;
- if (protocol == IPPROTO_UDP)
- netid = RPCBIND_NETID_UDP;
+ switch (protocol) {
+ case IPPROTO_UDP:
+ netid = RPCBIND_NETID_UDP6;
break;
- case AF_INET6:
- sap = (struct sockaddr *)&sin6;
+ case IPPROTO_TCP:
netid = RPCBIND_NETID_TCP6;
- if (protocol == IPPROTO_UDP)
- netid = RPCBIND_NETID_UDP6;
break;
default:
- return -EAFNOSUPPORT;
+ return -ENOPROTOOPT;
}
- return rpcb_v4_register(program, version, sap, netid);
+ error = rpcb_v4_register(program, version,
+ (const struct sockaddr *)&sin6, netid);
+
+ /*
+ * User space didn't support rpcbind version 4, so we won't
+ * use a PF_INET6 listener.
+ */
+ if (error == -EPROTONOSUPPORT)
+ error = -EAFNOSUPPORT;
+
+ return error;
}
-#else
-static int __svc_register(const u32 program, const u32 version,
- sa_family_t family,
+#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+
+/*
+ * Register a kernel RPC service via rpcbind version 4.
+ *
+ * Returns zero on success; a negative errno value is returned
+ * if any error occurs.
+ */
+static int __svc_register(const char *progname,
+ const u32 program, const u32 version,
+ const int family,
const unsigned short protocol,
const unsigned short port)
{
- if (family != AF_INET)
- return -EAFNOSUPPORT;
+ int error = -EAFNOSUPPORT;
- return rpcb_register(program, version, protocol, port);
+ switch (family) {
+ case PF_INET:
+ error = __svc_rpcb_register4(program, version,
+ protocol, port);
+ break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ case PF_INET6:
+ error = __svc_rpcb_register6(program, version,
+ protocol, port);
+#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+ }
+
+ if (error < 0)
+ printk(KERN_WARNING "svc: failed to register %sv%u RPC "
+ "service (errno %d).\n", progname, version, -error);
+ return error;
}
-#endif
/**
* svc_register - register an RPC service with the local portmapper
* @serv: svc_serv struct for the service to register
+ * @family: protocol family of service's listener socket
* @proto: transport protocol number to advertise
* @port: port to advertise
*
- * Service is registered for any address in serv's address family
+ * Service is registered for any address in the passed-in protocol family
*/
-int svc_register(const struct svc_serv *serv, const unsigned short proto,
- const unsigned short port)
+int svc_register(const struct svc_serv *serv, const int family,
+ const unsigned short proto, const unsigned short port)
{
struct svc_program *progp;
unsigned int i;
if (progp->pg_vers[i] == NULL)
continue;
- dprintk("svc: svc_register(%s, %u, %s, %u, %d)%s\n",
+ dprintk("svc: svc_register(%sv%d, %s, %u, %u)%s\n",
progp->pg_name,
- serv->sv_family,
+ i,
proto == IPPROTO_UDP? "udp" : "tcp",
port,
- i,
+ family,
progp->pg_vers[i]->vs_hidden?
" (but not telling portmap)" : "");
if (progp->pg_vers[i]->vs_hidden)
continue;
- error = __svc_register(progp->pg_prog, i,
- serv->sv_family, proto, port);
+ error = __svc_register(progp->pg_name, progp->pg_prog,
+ i, family, proto, port);
if (error < 0)
break;
}
}
/*
- * All transport protocols and ports for this service are removed
- * from the local rpcbind database if the service is not hidden.
- *
- * The result of unregistration is reported via dprintk for those
- * who want verification of the result, but is otherwise not
- * important.
- *
- * The local rpcbind daemon listens on either only IPv6 or only
- * IPv4. The kernel can't tell how it's configured. However,
- * AF_INET addresses are mapped to AF_INET6 in IPv6-only config-
- * urations, so even an unregistration request on AF_INET will
- * get to a local rpcbind daemon listening only on AF_INET6. So
- * we always unregister via AF_INET.
+ * If user space is running rpcbind, it should take the v4 UNSET
+ * and clear everything for this [program, version]. If user space
+ * is running portmap, it will reject the v4 UNSET, but won't have
+ * any "inet6" entries anyway. So a PMAP_UNSET should be sufficient
+ * in this case to clear all existing entries for [program, version].
+ */
+static void __svc_unregister(const u32 program, const u32 version,
+ const char *progname)
+{
+ int error;
+
+ error = rpcb_v4_register(program, version, NULL, "");
+
+ /*
+ * User space didn't support rpcbind v4, so retry this
+ * request with the legacy rpcbind v2 protocol.
+ */
+ if (error == -EPROTONOSUPPORT)
+ error = rpcb_register(program, version, 0, 0);
+
+ dprintk("svc: %s(%sv%u), error %d\n",
+ __func__, progname, version, error);
+}
+
+/*
+ * All netids, bind addresses and ports registered for [program, version]
+ * are removed from the local rpcbind database (if the service is not
+ * hidden) to make way for a new instance of the service.
*
- * At this point we don't need rpcbind version 4 for unregis-
- * tration: A v2 UNSET request will clear all transports (netids),
- * addresses, and address families for [program, version].
+ * The result of unregistration is reported via dprintk for those who want
+ * verification of the result, but is otherwise not important.
*/
static void svc_unregister(const struct svc_serv *serv)
{
struct svc_program *progp;
unsigned long flags;
unsigned int i;
- int error;
clear_thread_flag(TIF_SIGPENDING);
if (progp->pg_vers[i]->vs_hidden)
continue;
- error = rpcb_register(progp->pg_prog, i, 0, 0);
- dprintk("svc: svc_unregister(%sv%u), error %d\n",
- progp->pg_name, i, error);
+ __svc_unregister(progp->pg_prog, i, progp->pg_name);
}
}
rqstp->rq_res.tail[0].iov_len = 0;
/* Will be turned off only in gss privacy case: */
rqstp->rq_splice_ok = 1;
+ /* Will be turned off only when NFSv4 Sessions are used */
+ rqstp->rq_usedeferral = 1;
/* Setup reply header */
rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp);
procp = versp->vs_proc + proc;
if (proc >= versp->vs_nproc || !procp->pc_func)
goto err_bad_proc;
- rqstp->rq_server = serv;
rqstp->rq_procinfo = procp;
/* Syntactic check complete */
svc_putnl(resv, ntohl(rpc_stat));
goto sendit;
}
-EXPORT_SYMBOL(svc_process);
+EXPORT_SYMBOL_GPL(svc_process);
/*
* Return (transport-specific) limit on the rpc payload.
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff