From patchwork Wed Mar 17 02:06:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jon Maloy X-Patchwork-Id: 12144505 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AB96C4321A for ; Wed, 17 Mar 2021 02:07:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E15CC64F99 for ; Wed, 17 Mar 2021 02:07:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230299AbhCQCHS (ORCPT ); Tue, 16 Mar 2021 22:07:18 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:46891 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230026AbhCQCG5 (ORCPT ); Tue, 16 Mar 2021 22:06:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615946816; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4O6upttbg4iZg+KjGD+SvOtArfFyZ6zBkvKI8CylINU=; b=JIfKLPeZInLF7/Qplmaib/S5F/0Q7+AxTIpKmEsyTt+1UG4bDQbJ5fTBYX2GVdjL/PYgtq PTStz+m12MpGfhgT024qQnc8cTinqEAJQicrTESn11zt6xfskZAEZr+Q0IUfYS8PzovMaV 1HktwYzzKO7fjb+sPutHEdFeujY6T/4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-11-0hNcjm3XPDSMbczK3MY-zQ-1; Tue, 16 Mar 2021 22:06:51 -0400 X-MC-Unique: 0hNcjm3XPDSMbczK3MY-zQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E76E3107ACCA; Wed, 17 Mar 2021 02:06:49 +0000 (UTC) Received: from fenrir.redhat.com (ovpn-118-76.rdu2.redhat.com [10.10.118.76]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7C4735C1A1; Wed, 17 Mar 2021 02:06:46 +0000 (UTC) From: jmaloy@redhat.com To: netdev@vger.kernel.org, davem@davemloft.net Cc: tipc-discussion@lists.sourceforge.net, tung.q.nguyen@dektech.com.au, hoang.h.le@dektech.com.au, tuong.t.lien@dektech.com.au, jmaloy@redhat.com, maloy@donjonn.com, xinl@redhat.com, ying.xue@windriver.com, parthasarathy.bhuvaragan@gmail.com Subject: [net-next 14/16] tipc: simplify api between binding table and topology server Date: Tue, 16 Mar 2021 22:06:21 -0400 Message-Id: <20210317020623.1258298-15-jmaloy@redhat.com> In-Reply-To: <20210317020623.1258298-1-jmaloy@redhat.com> References: <20210317020623.1258298-1-jmaloy@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Jon Maloy The function tipc_report_overlap() is called from the binding table with numerous parameters taken from an instance of struct publication. A closer look reveals that it always is safe to send along a pointer to the instance itself, and hence reduce the call signature. We do that in this commit. Signed-off-by: Jon Maloy Acked-by: Ying Xue Acked-by: Hoang Le Acked-by: Tung Nguyen Acked-by: Xin Long --- net/tipc/name_table.c | 21 ++++++--------- net/tipc/subscr.c | 59 +++++++++++++++++++++++-------------------- net/tipc/subscr.h | 11 +++----- 3 files changed, 43 insertions(+), 48 deletions(-) diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 73d9f49662e4..f648feae446f 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -358,9 +358,7 @@ static bool tipc_service_insert_publ(struct net *net, /* Any subscriptions waiting for notification? */ list_for_each_entry_safe(sub, tmp, &sc->subscriptions, service_list) { - tipc_sub_report_overlap(sub, p->sr.lower, p->sr.upper, - TIPC_PUBLISHED, p->sk.ref, p->sk.node, - p->scope, first); + tipc_sub_report_overlap(sub, p, TIPC_PUBLISHED, first); } res = true; exit: @@ -453,9 +451,7 @@ static void tipc_service_subscribe(struct tipc_service *service, /* Sort the publications before reporting */ list_sort(NULL, &publ_list, tipc_publ_sort); list_for_each_entry_safe(p, tmp, &publ_list, list) { - tipc_sub_report_overlap(sub, p->sr.lower, p->sr.upper, - TIPC_PUBLISHED, p->sk.ref, p->sk.node, - p->scope, true); + tipc_sub_report_overlap(sub, p, TIPC_PUBLISHED, true); list_del_init(&p->list); } } @@ -511,8 +507,6 @@ struct publication *tipc_nametbl_remove_publ(struct net *net, struct publication *p = NULL; struct service_range *sr; struct tipc_service *sc; - u32 upper = ua->sr.upper; - u32 lower = ua->sr.lower; bool last; sc = tipc_service_find(net, ua); @@ -530,8 +524,7 @@ struct publication *tipc_nametbl_remove_publ(struct net *net, /* Notify any waiting subscriptions */ last = list_empty(&sr->all_publ); list_for_each_entry_safe(sub, tmp, &sc->subscriptions, service_list) { - tipc_sub_report_overlap(sub, lower, upper, TIPC_WITHDRAWN, - sk->ref, sk->node, ua->scope, last); + tipc_sub_report_overlap(sub, p, TIPC_WITHDRAWN, last); } /* Remove service range item if this was its last publication */ @@ -540,7 +533,7 @@ struct publication *tipc_nametbl_remove_publ(struct net *net, kfree(sr); } - /* Delete service item if this no more publications and subscriptions */ + /* Delete service item if no more publications and subscriptions */ if (RB_EMPTY_ROOT(&sc->ranges) && list_empty(&sc->subscriptions)) { hlist_del_init_rcu(&sc->service_list); kfree_rcu(sc, rcu); @@ -839,7 +832,8 @@ bool tipc_nametbl_subscribe(struct tipc_subscription *sub) struct tipc_uaddr ua; bool res = true; - tipc_uaddr(&ua, TIPC_SERVICE_RANGE, TIPC_NODE_SCOPE, type, 0, 0); + tipc_uaddr(&ua, TIPC_SERVICE_RANGE, TIPC_NODE_SCOPE, type, + tipc_sub_read(s, seq.lower), tipc_sub_read(s, seq.upper)); spin_lock_bh(&tn->nametbl_lock); sc = tipc_service_find(sub->net, &ua); if (!sc) @@ -870,7 +864,8 @@ void tipc_nametbl_unsubscribe(struct tipc_subscription *sub) struct tipc_service *sc; struct tipc_uaddr ua; - tipc_uaddr(&ua, TIPC_SERVICE_RANGE, TIPC_NODE_SCOPE, type, 0, 0); + tipc_uaddr(&ua, TIPC_SERVICE_RANGE, TIPC_NODE_SCOPE, type, + tipc_sub_read(s, seq.lower), tipc_sub_read(s, seq.upper)); spin_lock_bh(&tn->nametbl_lock); sc = tipc_service_find(sub->net, &ua); if (!sc) diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index f6ad0005218c..5f8dc0e7488f 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -3,7 +3,7 @@ * * Copyright (c) 2000-2017, Ericsson AB * Copyright (c) 2005-2007, 2010-2013, Wind River Systems - * Copyright (c) 2020, Red Hat Inc + * Copyright (c) 2020-2021, Red Hat Inc * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -40,18 +40,26 @@ #include "subscr.h" static void tipc_sub_send_event(struct tipc_subscription *sub, - u32 found_lower, u32 found_upper, - u32 event, u32 port, u32 node) + struct publication *p, + u32 event) { + struct tipc_subscr *s = &sub->evt.s; struct tipc_event *evt = &sub->evt; if (sub->inactive) return; tipc_evt_write(evt, event, event); - tipc_evt_write(evt, found_lower, found_lower); - tipc_evt_write(evt, found_upper, found_upper); - tipc_evt_write(evt, port.ref, port); - tipc_evt_write(evt, port.node, node); + if (p) { + tipc_evt_write(evt, found_lower, p->sr.lower); + tipc_evt_write(evt, found_upper, p->sr.upper); + tipc_evt_write(evt, port.ref, p->sk.ref); + tipc_evt_write(evt, port.node, p->sk.node); + } else { + tipc_evt_write(evt, found_lower, s->seq.lower); + tipc_evt_write(evt, found_upper, s->seq.upper); + tipc_evt_write(evt, port.ref, 0); + tipc_evt_write(evt, port.node, 0); + } tipc_topsrv_queue_evt(sub->net, sub->conid, event, evt); } @@ -61,24 +69,23 @@ static void tipc_sub_send_event(struct tipc_subscription *sub, * @found_lower: lower value to test * @found_upper: upper value to test * - * Return: 1 if there is overlap, otherwise 0. + * Returns true if there is overlap, otherwise false. */ -int tipc_sub_check_overlap(struct tipc_service_range *seq, u32 found_lower, - u32 found_upper) +bool tipc_sub_check_overlap(struct tipc_service_range *sr, + u32 found_lower, u32 found_upper) { - if (found_lower < seq->lower) - found_lower = seq->lower; - if (found_upper > seq->upper) - found_upper = seq->upper; + if (found_lower < sr->lower) + found_lower = sr->lower; + if (found_upper > sr->upper) + found_upper = sr->upper; if (found_lower > found_upper) - return 0; - return 1; + return false; + return true; } void tipc_sub_report_overlap(struct tipc_subscription *sub, - u32 found_lower, u32 found_upper, - u32 event, u32 port, u32 node, - u32 scope, int must) + struct publication *p, + u32 event, bool must) { struct tipc_subscr *s = &sub->evt.s; u32 filter = tipc_sub_read(s, filter); @@ -88,29 +95,25 @@ void tipc_sub_report_overlap(struct tipc_subscription *sub, seq.lower = tipc_sub_read(s, seq.lower); seq.upper = tipc_sub_read(s, seq.upper); - if (!tipc_sub_check_overlap(&seq, found_lower, found_upper)) + if (!tipc_sub_check_overlap(&seq, p->sr.lower, p->sr.upper)) return; - if (!must && !(filter & TIPC_SUB_PORTS)) return; - if (filter & TIPC_SUB_CLUSTER_SCOPE && scope == TIPC_NODE_SCOPE) + if (filter & TIPC_SUB_CLUSTER_SCOPE && p->scope == TIPC_NODE_SCOPE) return; - if (filter & TIPC_SUB_NODE_SCOPE && scope != TIPC_NODE_SCOPE) + if (filter & TIPC_SUB_NODE_SCOPE && p->scope != TIPC_NODE_SCOPE) return; spin_lock(&sub->lock); - tipc_sub_send_event(sub, found_lower, found_upper, - event, port, node); + tipc_sub_send_event(sub, p, event); spin_unlock(&sub->lock); } static void tipc_sub_timeout(struct timer_list *t) { struct tipc_subscription *sub = from_timer(sub, t, timer); - struct tipc_subscr *s = &sub->evt.s; spin_lock(&sub->lock); - tipc_sub_send_event(sub, s->seq.lower, s->seq.upper, - TIPC_SUBSCR_TIMEOUT, 0, 0); + tipc_sub_send_event(sub, NULL, TIPC_SUBSCR_TIMEOUT); sub->inactive = true; spin_unlock(&sub->lock); } diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h index 3ded27391d54..56769ce46e4d 100644 --- a/net/tipc/subscr.h +++ b/net/tipc/subscr.h @@ -3,7 +3,7 @@ * * Copyright (c) 2003-2017, Ericsson AB * Copyright (c) 2005-2007, 2012-2013, Wind River Systems - * Copyright (c) 2020, Red Hat Inc + * Copyright (c) 2020-2021, Red Hat Inc * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -43,6 +43,7 @@ #define TIPC_MAX_SUBSCR 65535 #define TIPC_MAX_PUBL 65535 +struct publication; struct tipc_subscription; struct tipc_conn; @@ -74,13 +75,9 @@ struct tipc_subscription *tipc_sub_subscribe(struct net *net, struct tipc_subscr *s, int conid); void tipc_sub_unsubscribe(struct tipc_subscription *sub); - -int tipc_sub_check_overlap(struct tipc_service_range *seq, - u32 found_lower, u32 found_upper); void tipc_sub_report_overlap(struct tipc_subscription *sub, - u32 found_lower, u32 found_upper, - u32 event, u32 port, u32 node, - u32 scope, int must); + struct publication *p, + u32 event, bool must); int __net_init tipc_topsrv_init_net(struct net *net); void __net_exit tipc_topsrv_exit_net(struct net *net);