diff options
Diffstat (limited to 'net/sunrpc/svc.c')
| -rw-r--r-- | net/sunrpc/svc.c | 62 |
1 files changed, 34 insertions, 28 deletions
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 3ee7461926d..5de6801cd92 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -20,7 +20,6 @@ #include <linux/module.h> #include <linux/kthread.h> #include <linux/slab.h> -#include <linux/nsproxy.h> #include <linux/sunrpc/types.h> #include <linux/sunrpc/xdr.h> @@ -324,7 +323,9 @@ svc_pool_map_set_cpumask(struct task_struct *task, unsigned int pidx) * The caller checks for sv_nrpools > 1, which * implies that we've been initialized. */ - BUG_ON(m->count == 0); + WARN_ON_ONCE(m->count == 0); + if (m->count == 0) + return; switch (m->mode) { case SVC_POOL_PERCPU: @@ -514,15 +515,6 @@ EXPORT_SYMBOL_GPL(svc_create_pooled); void svc_shutdown_net(struct svc_serv *serv, struct net *net) { - /* - * The set of xprts (contained in the sv_tempsocks and - * sv_permsocks lists) is now constant, since it is modified - * only by accepting new sockets (done by service threads in - * svc_recv) or aging old ones (done by sv_temptimer), or - * configuration changes (excluded by whatever locking the - * caller is using--nfsd_mutex in the case of nfsd). So it's - * safe to traverse those lists and shut everything down: - */ svc_close_net(serv, net); if (serv->sv_shutdown) @@ -585,7 +577,9 @@ svc_init_buffer(struct svc_rqst *rqstp, unsigned int size, int node) * We assume one is at most one page */ arghi = 0; - BUG_ON(pages > RPCSVC_MAXPAGES); + WARN_ON_ONCE(pages > RPCSVC_MAXPAGES); + if (pages > RPCSVC_MAXPAGES) + pages = RPCSVC_MAXPAGES; while (pages) { struct page *p = alloc_pages_node(node, GFP_KERNEL, 0); if (!p) @@ -746,7 +740,7 @@ svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs) __module_get(serv->sv_module); task = kthread_create_on_node(serv->sv_function, rqstp, - node, serv->sv_name); + node, "%s", serv->sv_name); if (IS_ERR(task)) { error = PTR_ERR(task); module_put(serv->sv_module); @@ -922,9 +916,6 @@ static int __svc_register(struct net *net, const char *progname, #endif } - if (error < 0) - printk(KERN_WARNING "svc: failed to register %sv%u RPC " - "service (errno %d).\n", progname, version, -error); return error; } @@ -943,14 +934,18 @@ int svc_register(const struct svc_serv *serv, struct net *net, const unsigned short port) { struct svc_program *progp; + struct svc_version *vers; unsigned int i; int error = 0; - BUG_ON(proto == 0 && port == 0); + WARN_ON_ONCE(proto == 0 && port == 0); + if (proto == 0 && port == 0) + return -EINVAL; for (progp = serv->sv_program; progp; progp = progp->pg_next) { for (i = 0; i < progp->pg_nvers; i++) { - if (progp->pg_vers[i] == NULL) + vers = progp->pg_vers[i]; + if (vers == NULL) continue; dprintk("svc: svc_register(%sv%d, %s, %u, %u)%s\n", @@ -959,16 +954,26 @@ int svc_register(const struct svc_serv *serv, struct net *net, proto == IPPROTO_UDP? "udp" : "tcp", port, family, - progp->pg_vers[i]->vs_hidden? - " (but not telling portmap)" : ""); + vers->vs_hidden ? + " (but not telling portmap)" : ""); - if (progp->pg_vers[i]->vs_hidden) + if (vers->vs_hidden) continue; error = __svc_register(net, progp->pg_name, progp->pg_prog, i, family, proto, port); - if (error < 0) + + if (vers->vs_rpcb_optnl) { + error = 0; + continue; + } + + if (error < 0) { + printk(KERN_WARNING "svc: failed to register " + "%sv%u RPC service (errno %d).\n", + progp->pg_name, i, -error); break; + } } } @@ -1035,8 +1040,9 @@ static void svc_unregister(const struct svc_serv *serv, struct net *net) } /* - * Printk the given error with the address of the client that caused it. + * dprintk the given error with the address of the client that caused it. */ +#ifdef RPC_DEBUG static __printf(2, 3) void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) { @@ -1049,11 +1055,13 @@ void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) vaf.fmt = fmt; vaf.va = &args; - net_warn_ratelimited("svc: %s: %pV", - svc_print_addr(rqstp, buf, sizeof(buf)), &vaf); + dprintk("svc: %s: %pV", svc_print_addr(rqstp, buf, sizeof(buf)), &vaf); va_end(args); } +#else +static __printf(2,3) void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) {} +#endif /* * Common routine for processing the RPC request. @@ -1105,8 +1113,6 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) rqstp->rq_vers = vers = svc_getnl(argv); /* version number */ rqstp->rq_proc = proc = svc_getnl(argv); /* procedure number */ - progp = serv->sv_program; - for (progp = serv->sv_program; progp; progp = progp->pg_next) if (prog == progp->pg_prog) break; @@ -1299,7 +1305,7 @@ svc_process(struct svc_rqst *rqstp) * Setup response xdr_buf. * Initially it has just one page */ - rqstp->rq_resused = 1; + rqstp->rq_next_page = &rqstp->rq_respages[1]; resv->iov_base = page_address(rqstp->rq_respages[0]); resv->iov_len = 0; rqstp->rq_res.pages = rqstp->rq_respages + 1; |