From patchwork Mon Dec 24 11:44:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742217 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 862A61399 for ; Mon, 24 Dec 2018 11:44:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 717F228B64 for ; Mon, 24 Dec 2018 11:44:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5FCFA28BFE; Mon, 24 Dec 2018 11:44:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 053CC28B64 for ; Mon, 24 Dec 2018 11:44:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725355AbeLXLoq (ORCPT ); Mon, 24 Dec 2018 06:44:46 -0500 Received: from relay.sw.ru ([185.231.240.75]:50606 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725298AbeLXLoq (ORCPT ); Mon, 24 Dec 2018 06:44:46 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOf4-0004Yy-MX; Mon, 24 Dec 2018 14:44:42 +0300 From: Vasily Averin Subject: [PATCH v4 01/10] sunrpc: use SVC_NET() in svcauth_gss_* functions To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: Date: Mon, 24 Dec 2018 14:44:42 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Vasily Averin --- net/sunrpc/auth_gss/svcauth_gss.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 1ece4bc3eb8d..152790ed309c 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1142,7 +1142,7 @@ static int svcauth_gss_legacy_init(struct svc_rqst *rqstp, struct kvec *resv = &rqstp->rq_res.head[0]; struct rsi *rsip, rsikey; int ret; - struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id); + struct sunrpc_net *sn = net_generic(SVC_NET(rqstp), sunrpc_net_id); memset(&rsikey, 0, sizeof(rsikey)); ret = gss_read_verf(gc, argv, authp, @@ -1253,7 +1253,7 @@ static int svcauth_gss_proxy_init(struct svc_rqst *rqstp, uint64_t handle; int status; int ret; - struct net *net = rqstp->rq_xprt->xpt_net; + struct net *net = SVC_NET(rqstp); struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); memset(&ud, 0, sizeof(ud)); @@ -1444,7 +1444,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) __be32 *rpcstart; __be32 *reject_stat = resv->iov_base + resv->iov_len; int ret; - struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id); + struct sunrpc_net *sn = net_generic(SVC_NET(rqstp), sunrpc_net_id); dprintk("RPC: svcauth_gss: argv->iov_len = %zd\n", argv->iov_len); @@ -1734,7 +1734,7 @@ svcauth_gss_release(struct svc_rqst *rqstp) struct rpc_gss_wire_cred *gc = &gsd->clcred; struct xdr_buf *resbuf = &rqstp->rq_res; int stat = -EINVAL; - struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id); + struct sunrpc_net *sn = net_generic(SVC_NET(rqstp), sunrpc_net_id); if (gc->gc_proc != RPC_GSS_PROC_DATA) goto out; From patchwork Mon Dec 24 11:44:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742219 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 03D7E1399 for ; Mon, 24 Dec 2018 11:44:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E551528B64 for ; Mon, 24 Dec 2018 11:44:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D72A128BFE; Mon, 24 Dec 2018 11:44:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E8E428B64 for ; Mon, 24 Dec 2018 11:44:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725298AbeLXLoz (ORCPT ); Mon, 24 Dec 2018 06:44:55 -0500 Received: from relay.sw.ru ([185.231.240.75]:50624 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725268AbeLXLoz (ORCPT ); Mon, 24 Dec 2018 06:44:55 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOfE-0004Z8-KR; Mon, 24 Dec 2018 14:44:52 +0300 From: Vasily Averin Subject: [PATCH v4 02/10] sunrpc: use-after-free in svc_process_common() To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <2d71abdb-2e79-4b13-21a6-3d439ddd96c5@virtuozzo.com> Date: Mon, 24 Dec 2018 14:44:52 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP if node have NFSv41+ mounts inside several net namespaces it can lead to use-after-free in svc_process_common() svc_process_common() /* Setup reply header */ rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp); <<< HERE svc_process_common() can use incorrect rqstp->rq_xprt, its caller function bc_svc_process() takes it from serv->sv_bc_xprt. The problem is that serv is global structure but sv_bc_xprt is assigned per-netnamespace. According to Trond, the whole "let's set up rqstp->rq_xprt for the back channel" is nothing but a giant hack in order to work around the fact that svc_process_common() uses it to find the xpt_ops, and perform a couple of (meaningless for the back channel) tests of xpt_flags. All we really need in svc_process_common() is to be able to run rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr() Bruce J Fields points that this xpo_prep_reply_hdr() call is an awfully roundabout way just to do "svc_putnl(resv, 0);" in the tcp case. This patch does not initialiuze rqstp->rq_xprt in bc_svc_process(), now it calls svc_process_common() with rqstp->rq_xprt = NULL. To adjust reply header svc_process_common() just check rqstp->rq_prot and calls svc_tcp_prep_reply_hdr() for tcp case. To handle rqstp->rq_xprt = NULL case in functions called from svc_process_common() patch intruduces net namespace pointer svc_rqst->rq_bc_net and adjust SVC_NET() definition. Some other function was also adopted to properly handle described case. Signed-off-by: Vasily Averin --- include/linux/sunrpc/svc.h | 5 ++++- include/trace/events/sunrpc.h | 6 ++++-- net/sunrpc/svc.c | 9 +++++---- net/sunrpc/svc_xprt.c | 5 +++-- net/sunrpc/svcsock.c | 2 +- 5 files changed, 17 insertions(+), 10 deletions(-) diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 73e130a840ce..fdb6b317d974 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -295,9 +295,12 @@ struct svc_rqst { struct svc_cacherep * rq_cacherep; /* cache info */ struct task_struct *rq_task; /* service thread */ spinlock_t rq_lock; /* per-request lock */ + struct net *rq_bc_net; /* pointer to backchannel's + * net namespace + */ }; -#define SVC_NET(svc_rqst) (svc_rqst->rq_xprt->xpt_net) +#define SVC_NET(rqst) (rqst->rq_xprt ? rqst->rq_xprt->xpt_net : rqst->rq_bc_net) /* * Rigorous type checking on sockaddr type conversions diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 28e384186c35..8617f4fd6b70 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -569,7 +569,8 @@ TRACE_EVENT(svc_process, __field(u32, vers) __field(u32, proc) __string(service, name) - __string(addr, rqst->rq_xprt->xpt_remotebuf) + __string(addr, rqst->rq_xprt ? + rqst->rq_xprt->xpt_remotebuf : "(null)") ), TP_fast_assign( @@ -577,7 +578,8 @@ TRACE_EVENT(svc_process, __entry->vers = rqst->rq_vers; __entry->proc = rqst->rq_proc; __assign_str(service, name); - __assign_str(addr, rqst->rq_xprt->xpt_remotebuf); + __assign_str(addr, rqst->rq_xprt ? + rqst->rq_xprt->xpt_remotebuf : "(null)"); ), TP_printk("addr=%s xid=0x%08x service=%s vers=%u proc=%u", diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index d13e05f1a990..fb647bc01fc5 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -1172,7 +1172,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) clear_bit(RQ_DROPME, &rqstp->rq_flags); /* Setup reply header */ - rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp); + if (rqstp->rq_prot == IPPROTO_TCP) + svc_tcp_prep_reply_hdr(rqstp); svc_putu32(resv, rqstp->rq_xid); @@ -1244,7 +1245,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) * for lower versions. RPC_PROG_MISMATCH seems to be the closest * fit. */ - if (versp->vs_need_cong_ctrl && + if (versp->vs_need_cong_ctrl && rqstp->rq_xprt && !test_bit(XPT_CONG_CTRL, &rqstp->rq_xprt->xpt_flags)) goto err_bad_vers; @@ -1336,7 +1337,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) return 0; close: - if (test_bit(XPT_TEMP, &rqstp->rq_xprt->xpt_flags)) + if (rqstp->rq_xprt && test_bit(XPT_TEMP, &rqstp->rq_xprt->xpt_flags)) svc_close_xprt(rqstp->rq_xprt); dprintk("svc: svc_process close\n"); return 0; @@ -1459,10 +1460,10 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req, dprintk("svc: %s(%p)\n", __func__, req); /* Build the svc_rqst used by the common processing routine */ - rqstp->rq_xprt = serv->sv_bc_xprt; rqstp->rq_xid = req->rq_xid; rqstp->rq_prot = req->rq_xprt->prot; rqstp->rq_server = serv; + rqstp->rq_bc_net = req->rq_xprt->xprt_net; rqstp->rq_addrlen = sizeof(req->rq_xprt->addr); memcpy(&rqstp->rq_addr, &req->rq_xprt->addr, rqstp->rq_addrlen); diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 51d36230b6e3..bd42da287c26 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -468,10 +468,11 @@ static struct svc_xprt *svc_xprt_dequeue(struct svc_pool *pool) */ void svc_reserve(struct svc_rqst *rqstp, int space) { + struct svc_xprt *xprt = rqstp->rq_xprt; + space += rqstp->rq_res.head[0].iov_len; - if (space < rqstp->rq_reserved) { - struct svc_xprt *xprt = rqstp->rq_xprt; + if (xprt && space < rqstp->rq_reserved) { atomic_sub((rqstp->rq_reserved - space), &xprt->xpt_reserved); rqstp->rq_reserved = space; diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 986f3ed7d1a2..793149ba1bda 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1173,7 +1173,7 @@ static int svc_tcp_sendto(struct svc_rqst *rqstp) /* * Setup response header. TCP has a 4B record length field. */ -static void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp) +void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp) { struct kvec *resv = &rqstp->rq_res.head[0]; From patchwork Mon Dec 24 11:45:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742221 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9E4B86C2 for ; Mon, 24 Dec 2018 11:45:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8773028B64 for ; Mon, 24 Dec 2018 11:45:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 77EF128BFE; Mon, 24 Dec 2018 11:45:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1068428B64 for ; Mon, 24 Dec 2018 11:45:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725446AbeLXLpI (ORCPT ); Mon, 24 Dec 2018 06:45:08 -0500 Received: from relay.sw.ru ([185.231.240.75]:50640 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725268AbeLXLpI (ORCPT ); Mon, 24 Dec 2018 06:45:08 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOfR-0004ZN-FU; Mon, 24 Dec 2018 14:45:05 +0300 From: Vasily Averin Subject: [PATCH v4 03/10] sunrpc: replace svc_serv->sv_bc_xprt by boolean flag To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <3105562e-fbac-432d-f95a-7f87c5a2551a@virtuozzo.com> Date: Mon, 24 Dec 2018 14:45:04 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP svc_serv-> sv_bc_xprt is netns-unsafe and cannot be used as pointer. To prevent its misuse in future it is replaced by new boolean flag. Signed-off-by: Vasily Averin --- fs/nfs/callback.c | 8 +++++--- include/linux/sunrpc/bc_xprt.h | 10 ++++------ include/linux/sunrpc/svc.h | 2 +- net/sunrpc/svcsock.c | 2 -- net/sunrpc/xprtrdma/svc_rdma_transport.c | 1 - 5 files changed, 10 insertions(+), 13 deletions(-) diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 509dc5adeb8f..6dd04774aedc 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -206,11 +206,13 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, goto err_bind; } - ret = -EPROTONOSUPPORT; + ret = 0; if (!IS_ENABLED(CONFIG_NFS_V4_1) || minorversion == 0) ret = nfs4_callback_up_net(serv, net); - else if (xprt->ops->bc_up) - ret = xprt->ops->bc_up(serv, net); + else if (xprt->ops->bc_setup) + serv->sv_bc_enabled = true; + else + ret = -EPROTONOSUPPORT; if (ret < 0) { printk(KERN_ERR "NFS: callback service start failed\n"); diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h index 28721cf73ec3..4e8c773d02be 100644 --- a/include/linux/sunrpc/bc_xprt.h +++ b/include/linux/sunrpc/bc_xprt.h @@ -47,11 +47,9 @@ void xprt_free_bc_rqst(struct rpc_rqst *req); /* * Determine if a shared backchannel is in use */ -static inline int svc_is_backchannel(const struct svc_rqst *rqstp) +static inline bool svc_is_backchannel(const struct svc_rqst *rqstp) { - if (rqstp->rq_server->sv_bc_xprt) - return 1; - return 0; + return rqstp->rq_server->sv_bc_enabled; } #else /* CONFIG_SUNRPC_BACKCHANNEL */ static inline int xprt_setup_backchannel(struct rpc_xprt *xprt, @@ -60,9 +58,9 @@ static inline int xprt_setup_backchannel(struct rpc_xprt *xprt, return 0; } -static inline int svc_is_backchannel(const struct svc_rqst *rqstp) +static inline bool svc_is_backchannel(const struct svc_rqst *rqstp) { - return 0; + return false; } static inline void xprt_free_bc_request(struct rpc_rqst *req) diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index fdb6b317d974..e52385340b3b 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -109,7 +109,7 @@ struct svc_serv { spinlock_t sv_cb_lock; /* protects the svc_cb_list */ wait_queue_head_t sv_cb_waitq; /* sleep here if there are no * entries in the svc_cb_list */ - struct svc_xprt *sv_bc_xprt; /* callback on fore channel */ + bool sv_bc_enabled; /* service uses backchannel */ #endif /* CONFIG_SUNRPC_BACKCHANNEL */ }; diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 793149ba1bda..8ce181ecb627 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1623,8 +1623,6 @@ static struct svc_xprt *svc_bc_create_socket(struct svc_serv *serv, svc_xprt_init(net, &svc_tcp_bc_class, xprt, serv); set_bit(XPT_CONG_CTRL, &svsk->sk_xprt.xpt_flags); - serv->sv_bc_xprt = xprt; - return xprt; } diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 2f7ec8912f49..d410e6f34f44 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -136,7 +136,6 @@ static struct svc_xprt *svc_rdma_bc_create(struct svc_serv *serv, svc_xprt_init(net, &svc_rdma_bc_class, xprt, serv); set_bit(XPT_CONG_CTRL, &xprt->xpt_flags); - serv->sv_bc_xprt = xprt; dprintk("svcrdma: %s(%p)\n", __func__, xprt); return xprt; From patchwork Mon Dec 24 11:45:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742223 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5A2531399 for ; Mon, 24 Dec 2018 11:45:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 48CFE28B64 for ; Mon, 24 Dec 2018 11:45:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3C39B28C78; Mon, 24 Dec 2018 11:45:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C933D28B64 for ; Mon, 24 Dec 2018 11:45:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725616AbeLXLp2 (ORCPT ); Mon, 24 Dec 2018 06:45:28 -0500 Received: from relay.sw.ru ([185.231.240.75]:50660 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725268AbeLXLp2 (ORCPT ); Mon, 24 Dec 2018 06:45:28 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOfl-0004Zh-JT; Mon, 24 Dec 2018 14:45:25 +0300 From: Vasily Averin Subject: [PATCH v4 04/10] sunrpc: remove unused bc_up operation from rpc_xprt_ops To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <8df076d6-1f35-f3f6-9b04-cc3c33ec2e27@virtuozzo.com> Date: Mon, 24 Dec 2018 14:45:25 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Vasily Averin --- include/linux/sunrpc/xprt.h | 1 - net/sunrpc/xprtrdma/backchannel.c | 20 -------------------- net/sunrpc/xprtrdma/transport.c | 1 - net/sunrpc/xprtrdma/xprt_rdma.h | 1 - net/sunrpc/xprtsock.c | 12 ------------ 5 files changed, 35 deletions(-) diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index a4ab4f8d9140..ad7e910b119d 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -157,7 +157,6 @@ struct rpc_xprt_ops { void (*inject_disconnect)(struct rpc_xprt *xprt); int (*bc_setup)(struct rpc_xprt *xprt, unsigned int min_reqs); - int (*bc_up)(struct svc_serv *serv, struct net *net); size_t (*bc_maxpayload)(struct rpc_xprt *xprt); void (*bc_free_rqst)(struct rpc_rqst *rqst); void (*bc_destroy)(struct rpc_xprt *xprt, diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c index e5b367a3e517..edba0d35776b 100644 --- a/net/sunrpc/xprtrdma/backchannel.c +++ b/net/sunrpc/xprtrdma/backchannel.c @@ -113,26 +113,6 @@ int xprt_rdma_bc_setup(struct rpc_xprt *xprt, unsigned int reqs) return -ENOMEM; } -/** - * xprt_rdma_bc_up - Create transport endpoint for backchannel service - * @serv: server endpoint - * @net: network namespace - * - * The "xprt" is an implied argument: it supplies the name of the - * backchannel transport class. - * - * Returns zero on success, negative errno on failure - */ -int xprt_rdma_bc_up(struct svc_serv *serv, struct net *net) -{ - int ret; - - ret = svc_create_xprt(serv, "rdma-bc", net, PF_INET, 0, 0); - if (ret < 0) - return ret; - return 0; -} - /** * xprt_rdma_bc_maxpayload - Return maximum backchannel message size * @xprt: transport diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index ae2a83828953..9141068693fa 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -827,7 +827,6 @@ static const struct rpc_xprt_ops xprt_rdma_procs = { .inject_disconnect = xprt_rdma_inject_disconnect, #if defined(CONFIG_SUNRPC_BACKCHANNEL) .bc_setup = xprt_rdma_bc_setup, - .bc_up = xprt_rdma_bc_up, .bc_maxpayload = xprt_rdma_bc_maxpayload, .bc_free_rqst = xprt_rdma_bc_free_rqst, .bc_destroy = xprt_rdma_bc_destroy, diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index a13ccb643ce0..9218dbebedce 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -661,7 +661,6 @@ void xprt_rdma_cleanup(void); */ #if defined(CONFIG_SUNRPC_BACKCHANNEL) int xprt_rdma_bc_setup(struct rpc_xprt *, unsigned int); -int xprt_rdma_bc_up(struct svc_serv *, struct net *); size_t xprt_rdma_bc_maxpayload(struct rpc_xprt *); int rpcrdma_bc_post_recv(struct rpcrdma_xprt *, unsigned int); void rpcrdma_bc_receive_call(struct rpcrdma_xprt *, struct rpcrdma_rep *); diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 8a5e823e0b33..a51152af8780 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1400,17 +1400,6 @@ static void xs_tcp_force_close(struct rpc_xprt *xprt) } #if defined(CONFIG_SUNRPC_BACKCHANNEL) -static int xs_tcp_bc_up(struct svc_serv *serv, struct net *net) -{ - int ret; - - ret = svc_create_xprt(serv, "tcp-bc", net, PF_INET, 0, - SVC_SOCK_ANONYMOUS); - if (ret < 0) - return ret; - return 0; -} - static size_t xs_tcp_bc_maxpayload(struct rpc_xprt *xprt) { return PAGE_SIZE; @@ -2667,7 +2656,6 @@ static const struct rpc_xprt_ops xs_tcp_ops = { .inject_disconnect = xs_inject_disconnect, #ifdef CONFIG_SUNRPC_BACKCHANNEL .bc_setup = xprt_setup_bc, - .bc_up = xs_tcp_bc_up, .bc_maxpayload = xs_tcp_bc_maxpayload, .bc_free_rqst = xprt_free_bc_rqst, .bc_destroy = xprt_destroy_bc, From patchwork Mon Dec 24 11:45:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742225 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F0FE16C2 for ; Mon, 24 Dec 2018 11:45:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DEA6028B64 for ; Mon, 24 Dec 2018 11:45:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D303828BFE; Mon, 24 Dec 2018 11:45:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5ECAA28B64 for ; Mon, 24 Dec 2018 11:45:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725497AbeLXLps (ORCPT ); Mon, 24 Dec 2018 06:45:48 -0500 Received: from relay.sw.ru ([185.231.240.75]:50678 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725268AbeLXLps (ORCPT ); Mon, 24 Dec 2018 06:45:48 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOg6-0004a2-8R; Mon, 24 Dec 2018 14:45:46 +0300 From: Vasily Averin Subject: [PATCH v4 05/10] sunrpc: remove svc_tcp_bc_class To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <5f4e7c06-2fee-da2e-01ab-b7ff016c1d5c@virtuozzo.com> Date: Mon, 24 Dec 2018 14:45:46 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Remove svc_xprt_class svc_tcp_bc_class and related functions Signed-off-by: Vasily Averin --- net/sunrpc/svcsock.c | 101 ------------------------------------------- 1 file changed, 101 deletions(-) diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 8ce181ecb627..19acf10dfca1 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -70,13 +70,6 @@ static void svc_sock_free(struct svc_xprt *); static struct svc_xprt *svc_create_socket(struct svc_serv *, int, struct net *, struct sockaddr *, int, int); -#if defined(CONFIG_SUNRPC_BACKCHANNEL) -static struct svc_xprt *svc_bc_create_socket(struct svc_serv *, int, - struct net *, struct sockaddr *, - int, int); -static void svc_bc_sock_free(struct svc_xprt *xprt); -#endif /* CONFIG_SUNRPC_BACKCHANNEL */ - #ifdef CONFIG_DEBUG_LOCK_ALLOC static struct lock_class_key svc_key[2]; static struct lock_class_key svc_slock_key[2]; @@ -1189,58 +1182,6 @@ static struct svc_xprt *svc_tcp_create(struct svc_serv *serv, return svc_create_socket(serv, IPPROTO_TCP, net, sa, salen, flags); } -#if defined(CONFIG_SUNRPC_BACKCHANNEL) -static struct svc_xprt *svc_bc_create_socket(struct svc_serv *, int, - struct net *, struct sockaddr *, - int, int); -static void svc_bc_sock_free(struct svc_xprt *xprt); - -static struct svc_xprt *svc_bc_tcp_create(struct svc_serv *serv, - struct net *net, - struct sockaddr *sa, int salen, - int flags) -{ - return svc_bc_create_socket(serv, IPPROTO_TCP, net, sa, salen, flags); -} - -static void svc_bc_tcp_sock_detach(struct svc_xprt *xprt) -{ -} - -static const struct svc_xprt_ops svc_tcp_bc_ops = { - .xpo_create = svc_bc_tcp_create, - .xpo_detach = svc_bc_tcp_sock_detach, - .xpo_free = svc_bc_sock_free, - .xpo_prep_reply_hdr = svc_tcp_prep_reply_hdr, - .xpo_secure_port = svc_sock_secure_port, -}; - -static struct svc_xprt_class svc_tcp_bc_class = { - .xcl_name = "tcp-bc", - .xcl_owner = THIS_MODULE, - .xcl_ops = &svc_tcp_bc_ops, - .xcl_max_payload = RPCSVC_MAXPAYLOAD_TCP, -}; - -static void svc_init_bc_xprt_sock(void) -{ - svc_reg_xprt_class(&svc_tcp_bc_class); -} - -static void svc_cleanup_bc_xprt_sock(void) -{ - svc_unreg_xprt_class(&svc_tcp_bc_class); -} -#else /* CONFIG_SUNRPC_BACKCHANNEL */ -static void svc_init_bc_xprt_sock(void) -{ -} - -static void svc_cleanup_bc_xprt_sock(void) -{ -} -#endif /* CONFIG_SUNRPC_BACKCHANNEL */ - static const struct svc_xprt_ops svc_tcp_ops = { .xpo_create = svc_tcp_create, .xpo_recvfrom = svc_tcp_recvfrom, @@ -1267,14 +1208,12 @@ void svc_init_xprt_sock(void) { svc_reg_xprt_class(&svc_tcp_class); svc_reg_xprt_class(&svc_udp_class); - svc_init_bc_xprt_sock(); } void svc_cleanup_xprt_sock(void) { svc_unreg_xprt_class(&svc_tcp_class); svc_unreg_xprt_class(&svc_udp_class); - svc_cleanup_bc_xprt_sock(); } static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv) @@ -1595,43 +1534,3 @@ static void svc_sock_free(struct svc_xprt *xprt) sock_release(svsk->sk_sock); kfree(svsk); } - -#if defined(CONFIG_SUNRPC_BACKCHANNEL) -/* - * Create a back channel svc_xprt which shares the fore channel socket. - */ -static struct svc_xprt *svc_bc_create_socket(struct svc_serv *serv, - int protocol, - struct net *net, - struct sockaddr *sin, int len, - int flags) -{ - struct svc_sock *svsk; - struct svc_xprt *xprt; - - if (protocol != IPPROTO_TCP) { - printk(KERN_WARNING "svc: only TCP sockets" - " supported on shared back channel\n"); - return ERR_PTR(-EINVAL); - } - - svsk = kzalloc(sizeof(*svsk), GFP_KERNEL); - if (!svsk) - return ERR_PTR(-ENOMEM); - - xprt = &svsk->sk_xprt; - svc_xprt_init(net, &svc_tcp_bc_class, xprt, serv); - set_bit(XPT_CONG_CTRL, &svsk->sk_xprt.xpt_flags); - - return xprt; -} - -/* - * Free a back channel svc_sock. - */ -static void svc_bc_sock_free(struct svc_xprt *xprt) -{ - if (xprt) - kfree(container_of(xprt, struct svc_sock, sk_xprt)); -} -#endif /* CONFIG_SUNRPC_BACKCHANNEL */ From patchwork Mon Dec 24 11:45:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742227 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 948721399 for ; Mon, 24 Dec 2018 11:46:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 82A2928B64 for ; Mon, 24 Dec 2018 11:46:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7700E28BFE; Mon, 24 Dec 2018 11:46:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0D4AF28B8B for ; Mon, 24 Dec 2018 11:46:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725863AbeLXLp4 (ORCPT ); Mon, 24 Dec 2018 06:45:56 -0500 Received: from relay.sw.ru ([185.231.240.75]:50696 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725268AbeLXLp4 (ORCPT ); Mon, 24 Dec 2018 06:45:56 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOgD-0004aC-Hz; Mon, 24 Dec 2018 14:45:53 +0300 From: Vasily Averin Subject: [PATCH v4 06/10] sunrpc: remove svc_rdma_bc_class To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: Date: Mon, 24 Dec 2018 14:45:53 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Remove svc_xprt_class svc_rdma_bc_class and related functions. Signed-off-by: Vasily Averin --- net/sunrpc/xprtrdma/svc_rdma.c | 6 --- net/sunrpc/xprtrdma/svc_rdma_transport.c | 57 ------------------------ 2 files changed, 63 deletions(-) diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c index 134bef6a451e..abdb3004a1e3 100644 --- a/net/sunrpc/xprtrdma/svc_rdma.c +++ b/net/sunrpc/xprtrdma/svc_rdma.c @@ -235,9 +235,6 @@ void svc_rdma_cleanup(void) unregister_sysctl_table(svcrdma_table_header); svcrdma_table_header = NULL; } -#if defined(CONFIG_SUNRPC_BACKCHANNEL) - svc_unreg_xprt_class(&svc_rdma_bc_class); -#endif svc_unreg_xprt_class(&svc_rdma_class); } @@ -259,8 +256,5 @@ int svc_rdma_init(void) /* Register RDMA with the SVC transport switch */ svc_reg_xprt_class(&svc_rdma_class); -#if defined(CONFIG_SUNRPC_BACKCHANNEL) - svc_reg_xprt_class(&svc_rdma_bc_class); -#endif return 0; } diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index d410e6f34f44..085933cc6b3e 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -100,63 +100,6 @@ struct svc_xprt_class svc_rdma_class = { .xcl_ident = XPRT_TRANSPORT_RDMA, }; -#if defined(CONFIG_SUNRPC_BACKCHANNEL) -static struct svc_xprt *svc_rdma_bc_create(struct svc_serv *, struct net *, - struct sockaddr *, int, int); -static void svc_rdma_bc_detach(struct svc_xprt *); -static void svc_rdma_bc_free(struct svc_xprt *); - -static const struct svc_xprt_ops svc_rdma_bc_ops = { - .xpo_create = svc_rdma_bc_create, - .xpo_detach = svc_rdma_bc_detach, - .xpo_free = svc_rdma_bc_free, - .xpo_prep_reply_hdr = svc_rdma_prep_reply_hdr, - .xpo_secure_port = svc_rdma_secure_port, -}; - -struct svc_xprt_class svc_rdma_bc_class = { - .xcl_name = "rdma-bc", - .xcl_owner = THIS_MODULE, - .xcl_ops = &svc_rdma_bc_ops, - .xcl_max_payload = (1024 - RPCRDMA_HDRLEN_MIN) -}; - -static struct svc_xprt *svc_rdma_bc_create(struct svc_serv *serv, - struct net *net, - struct sockaddr *sa, int salen, - int flags) -{ - struct svcxprt_rdma *cma_xprt; - struct svc_xprt *xprt; - - cma_xprt = svc_rdma_create_xprt(serv, net); - if (!cma_xprt) - return ERR_PTR(-ENOMEM); - xprt = &cma_xprt->sc_xprt; - - svc_xprt_init(net, &svc_rdma_bc_class, xprt, serv); - set_bit(XPT_CONG_CTRL, &xprt->xpt_flags); - - dprintk("svcrdma: %s(%p)\n", __func__, xprt); - return xprt; -} - -static void svc_rdma_bc_detach(struct svc_xprt *xprt) -{ - dprintk("svcrdma: %s(%p)\n", __func__, xprt); -} - -static void svc_rdma_bc_free(struct svc_xprt *xprt) -{ - struct svcxprt_rdma *rdma = - container_of(xprt, struct svcxprt_rdma, sc_xprt); - - dprintk("svcrdma: %s(%p)\n", __func__, xprt); - if (xprt) - kfree(rdma); -} -#endif /* CONFIG_SUNRPC_BACKCHANNEL */ - /* QP event handler */ static void qp_event_handler(struct ib_event *event, void *context) { From patchwork Mon Dec 24 11:46:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742229 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C645D1399 for ; Mon, 24 Dec 2018 11:46:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B2B9028B64 for ; Mon, 24 Dec 2018 11:46:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A6FAF28BFE; Mon, 24 Dec 2018 11:46:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 288EA28B64 for ; Mon, 24 Dec 2018 11:46:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725268AbeLXLqE (ORCPT ); Mon, 24 Dec 2018 06:46:04 -0500 Received: from relay.sw.ru ([185.231.240.75]:50710 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725864AbeLXLqD (ORCPT ); Mon, 24 Dec 2018 06:46:03 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOgL-0004aP-GA; Mon, 24 Dec 2018 14:46:01 +0300 From: Vasily Averin Subject: [PATCH v4 07/10] sunrpc: remove unused xpo_prep_reply_hdr callback To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: Date: Mon, 24 Dec 2018 14:46:00 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP xpo_prep_reply_hdr are not used now. It was defined for tcp transport only, however it cannot be called indirectly, so let's move it to its caller and remove unused callback. Signed-off-by: Vasily Averin --- include/linux/sunrpc/svc_rdma.h | 1 - include/linux/sunrpc/svc_xprt.h | 1 - net/sunrpc/svc.c | 11 +++++++++++ net/sunrpc/svcsock.c | 17 ----------------- net/sunrpc/xprtrdma/svc_rdma_sendto.c | 4 ---- net/sunrpc/xprtrdma/svc_rdma_transport.c | 1 - 6 files changed, 11 insertions(+), 24 deletions(-) diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h index e6e26918504c..cc2f25a10dcf 100644 --- a/include/linux/sunrpc/svc_rdma.h +++ b/include/linux/sunrpc/svc_rdma.h @@ -192,7 +192,6 @@ extern int svc_rdma_sendto(struct svc_rqst *); extern int svc_rdma_create_listen(struct svc_serv *, int, struct sockaddr *); extern void svc_sq_reap(struct svcxprt_rdma *); extern void svc_rq_reap(struct svcxprt_rdma *); -extern void svc_rdma_prep_reply_hdr(struct svc_rqst *); extern struct svc_xprt_class svc_rdma_class; #ifdef CONFIG_SUNRPC_BACKCHANNEL diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index 6b7a86c4d6e6..b3f9577e17d6 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -20,7 +20,6 @@ struct svc_xprt_ops { struct svc_xprt *(*xpo_accept)(struct svc_xprt *); int (*xpo_has_wspace)(struct svc_xprt *); int (*xpo_recvfrom)(struct svc_rqst *); - void (*xpo_prep_reply_hdr)(struct svc_rqst *); int (*xpo_sendto)(struct svc_rqst *); void (*xpo_release_rqst)(struct svc_rqst *); void (*xpo_detach)(struct svc_xprt *); diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index fb647bc01fc5..1e6701c065f9 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -1144,6 +1144,17 @@ void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) static __printf(2,3) void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) {} #endif +/* + * Setup response header for TCP, it has a 4B record length field. + */ +static void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp) +{ + struct kvec *resv = &rqstp->rq_res.head[0]; + + /* tcp needs a space for the record length... */ + svc_putnl(resv, 0); +} + /* * Common routine for processing the RPC request. */ diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 19acf10dfca1..c7ae1ed5324f 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -610,10 +610,6 @@ svc_udp_sendto(struct svc_rqst *rqstp) return error; } -static void svc_udp_prep_reply_hdr(struct svc_rqst *rqstp) -{ -} - static int svc_udp_has_wspace(struct svc_xprt *xprt) { struct svc_sock *svsk = container_of(xprt, struct svc_sock, sk_xprt); @@ -657,7 +653,6 @@ static const struct svc_xprt_ops svc_udp_ops = { .xpo_release_rqst = svc_release_udp_skb, .xpo_detach = svc_sock_detach, .xpo_free = svc_sock_free, - .xpo_prep_reply_hdr = svc_udp_prep_reply_hdr, .xpo_has_wspace = svc_udp_has_wspace, .xpo_accept = svc_udp_accept, .xpo_secure_port = svc_sock_secure_port, @@ -1163,17 +1158,6 @@ static int svc_tcp_sendto(struct svc_rqst *rqstp) return sent; } -/* - * Setup response header. TCP has a 4B record length field. - */ -void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp) -{ - struct kvec *resv = &rqstp->rq_res.head[0]; - - /* tcp needs a space for the record length... */ - svc_putnl(resv, 0); -} - static struct svc_xprt *svc_tcp_create(struct svc_serv *serv, struct net *net, struct sockaddr *sa, int salen, @@ -1189,7 +1173,6 @@ static const struct svc_xprt_ops svc_tcp_ops = { .xpo_release_rqst = svc_release_skb, .xpo_detach = svc_tcp_sock_detach, .xpo_free = svc_sock_free, - .xpo_prep_reply_hdr = svc_tcp_prep_reply_hdr, .xpo_has_wspace = svc_tcp_has_wspace, .xpo_accept = svc_tcp_accept, .xpo_secure_port = svc_sock_secure_port, diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c index 8602a5f1b515..e8016c428890 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c @@ -741,10 +741,6 @@ static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma, return 0; } -void svc_rdma_prep_reply_hdr(struct svc_rqst *rqstp) -{ -} - /** * svc_rdma_sendto - Transmit an RPC reply * @rqstp: processed RPC request, reply XDR already in ::rq_res diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 085933cc6b3e..924c17d46903 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -85,7 +85,6 @@ static const struct svc_xprt_ops svc_rdma_ops = { .xpo_release_rqst = svc_rdma_release_rqst, .xpo_detach = svc_rdma_detach, .xpo_free = svc_rdma_free, - .xpo_prep_reply_hdr = svc_rdma_prep_reply_hdr, .xpo_has_wspace = svc_rdma_has_wspace, .xpo_accept = svc_rdma_accept, .xpo_secure_port = svc_rdma_secure_port, From patchwork Mon Dec 24 11:46:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742231 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3ADA56C2 for ; Mon, 24 Dec 2018 11:46:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 29C2028B64 for ; Mon, 24 Dec 2018 11:46:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1DD7C28C78; Mon, 24 Dec 2018 11:46:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B220928B64 for ; Mon, 24 Dec 2018 11:46:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725896AbeLXLqL (ORCPT ); Mon, 24 Dec 2018 06:46:11 -0500 Received: from relay.sw.ru ([185.231.240.75]:50724 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725864AbeLXLqK (ORCPT ); Mon, 24 Dec 2018 06:46:10 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOgS-0004aZ-GR; Mon, 24 Dec 2018 14:46:08 +0300 From: Vasily Averin Subject: [PATCH v4 08/10] sunrpc: make visible processing error in bc_svc_process() To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <670c3c40-e78c-1e53-10d7-d8f81e0442ec@virtuozzo.com> Date: Mon, 24 Dec 2018 14:46:08 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Force bc_svc_process() to generate debug message after processing errors Signed-off-by: Vasily Averin --- net/sunrpc/svc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 1e6701c065f9..e87ddb9f7feb 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -1511,9 +1511,9 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req, if (!proc_error) { /* Processing error: drop the request */ xprt_free_bc_request(req); - return 0; + error = -EINVAL; + goto out; } - /* Finally, send the reply synchronously */ memcpy(&req->rq_snd_buf, &rqstp->rq_res, sizeof(req->rq_snd_buf)); task = rpc_run_bc_task(req); From patchwork Mon Dec 24 11:46:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742233 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ABDBD6C2 for ; Mon, 24 Dec 2018 11:46:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9AFBB28B64 for ; Mon, 24 Dec 2018 11:46:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8E5C528C78; Mon, 24 Dec 2018 11:46:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3BB5828B64 for ; Mon, 24 Dec 2018 11:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725864AbeLXLqS (ORCPT ); Mon, 24 Dec 2018 06:46:18 -0500 Received: from relay.sw.ru ([185.231.240.75]:50740 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725897AbeLXLqS (ORCPT ); Mon, 24 Dec 2018 06:46:18 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOgZ-0004aj-8K; Mon, 24 Dec 2018 14:46:15 +0300 From: Vasily Averin Subject: [PATCH v4 09/10] sunrpc: fix debug message in svc_create_xprt() To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <4035c3c4-eb95-1f85-a4c3-ca77e9dd3b49@virtuozzo.com> Date: Mon, 24 Dec 2018 14:46:14 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP _svc_create_xprt() returns positive port number so its non-zero return value is not an error Reviewed-by: Jeff Layton Signed-off-by: Vasily Averin --- net/sunrpc/svc_xprt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index bd42da287c26..4eb8fbf2508d 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -296,9 +296,9 @@ int svc_create_xprt(struct svc_serv *serv, const char *xprt_name, request_module("svc%s", xprt_name); err = _svc_create_xprt(serv, xprt_name, net, family, port, flags); } - if (err) + if (err < 0) dprintk("svc: transport %s not found, err %d\n", - xprt_name, err); + xprt_name, -err); return err; } EXPORT_SYMBOL_GPL(svc_create_xprt); From patchwork Mon Dec 24 11:46:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 10742235 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A9A606C2 for ; Mon, 24 Dec 2018 11:46:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 98D5728B64 for ; Mon, 24 Dec 2018 11:46:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8A85A28C78; Mon, 24 Dec 2018 11:46:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3210628B64 for ; Mon, 24 Dec 2018 11:46:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725899AbeLXLqY (ORCPT ); Mon, 24 Dec 2018 06:46:24 -0500 Received: from relay.sw.ru ([185.231.240.75]:50754 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725897AbeLXLqY (ORCPT ); Mon, 24 Dec 2018 06:46:24 -0500 Received: from [172.16.24.21] by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gbOgf-0004av-Sg; Mon, 24 Dec 2018 14:46:21 +0300 From: Vasily Averin Subject: [PATCH v4 10/10] nfs: minor typo in nfs4_callback_up_net() To: "J. Bruce Fields" , Trond Myklebust Cc: Jeff Layton , Anna Schumaker , Chuck Lever , linux-nfs@vger.kernel.org, Evgenii Shatokhin References: Message-ID: <09831ddc-01c1-160f-bee8-f305d88c11c0@virtuozzo.com> Date: Mon, 24 Dec 2018 14:46:21 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Closing ")" was lost in debug message. Signed-off-by: Vasily Averin --- fs/nfs/callback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 6dd04774aedc..82fa65da741b 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -56,7 +56,7 @@ static int nfs4_callback_up_net(struct svc_serv *serv, struct net *net) nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS); if (ret > 0) { nn->nfs_callback_tcpport6 = ret; - dprintk("NFS: Callback listener port = %u (af %u, net %x\n", + dprintk("NFS: Callback listener port = %u (af %u, net %x)\n", nn->nfs_callback_tcpport6, PF_INET6, net->ns.inum); } else if (ret != -EAFNOSUPPORT) goto out_err;