From owner-svn-src-all@FreeBSD.ORG Sat Nov 1 10:35:46 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id BEF31498; Sat, 1 Nov 2014 10:35:46 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 90FB2666; Sat, 1 Nov 2014 10:35:46 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id sA1AZk1c046362; Sat, 1 Nov 2014 10:35:46 GMT (envelope-from tuexen@FreeBSD.org) Received: (from tuexen@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id sA1AZkFu046361; Sat, 1 Nov 2014 10:35:46 GMT (envelope-from tuexen@FreeBSD.org) Message-Id: <201411011035.sA1AZkFu046361@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: tuexen set sender to tuexen@FreeBSD.org using -f From: Michael Tuexen Date: Sat, 1 Nov 2014 10:35:46 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r273925 - head/sys/netinet X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Nov 2014 10:35:46 -0000 Author: tuexen Date: Sat Nov 1 10:35:45 2014 New Revision: 273925 URL: https://svnweb.freebsd.org/changeset/base/273925 Log: Don't zero the stats before they are read out. MFC after: 3 days Modified: head/sys/netinet/sctp_sysctl.c Modified: head/sys/netinet/sctp_sysctl.c ============================================================================== --- head/sys/netinet/sctp_sysctl.c Sat Nov 1 09:10:21 2014 (r273924) +++ head/sys/netinet/sctp_sysctl.c Sat Nov 1 10:35:45 2014 (r273925) @@ -636,26 +636,27 @@ sctp_sysctl_handle_stats(SYSCTL_HANDLER_ int error; #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) - struct sctpstat sb_temp; struct sctpstat *sarry; struct sctpstat sb; int cpu; + #endif + struct sctpstat sb_temp; if ((req->newptr != NULL) && (req->newlen != sizeof(struct sctpstat))) { return (EINVAL); } - -#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) - memset(&sb, 0, sizeof(sb)); - memset(&sb_temp, 0, sizeof(sb_temp)); + memset(&sb_temp, 0, sizeof(struct sctpstat)); if (req->newptr != NULL) { - error = SYSCTL_IN(req, &sb_temp, sizeof(sb_temp)); - if (error != 0) + error = SYSCTL_IN(req, &sb_temp, sizeof(struct sctpstat)); + if (error != 0) { return (error); + } } +#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) + memset(&sb, 0, sizeof(sb)); for (cpu = 0; cpu < mp_maxid; cpu++) { sarry = &SCTP_BASE_STATS[cpu]; if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) { @@ -783,15 +784,19 @@ sctp_sysctl_handle_stats(SYSCTL_HANDLER_ sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid; sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid; sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over; - if (req->newptr != NULL) + if (req->newptr != NULL) { memcpy(sarry, &sb_temp, sizeof(struct sctpstat)); + } } error = SYSCTL_OUT(req, &sb, sizeof(struct sctpstat)); #else - error = SYSCTL_IN(req, &SCTP_BASE_STATS, sizeof(struct sctpstat)); - if (error) - return (error); error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat)); + if (error != 0) { + return (error); + } + if (req->newptr != NULL) { + memcpy(&SCTP_BASE_STATS, &sb_temp, sizeof(struct sctpstat)); + } #endif return (error); }