From patchwork Thu Feb 14 14:07:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Slavomir Kaslev X-Patchwork-Id: 10812805 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 9FF90746 for ; Thu, 14 Feb 2019 14:07:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8FDB22E6B1 for ; Thu, 14 Feb 2019 14:07:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 83E572E6B5; Thu, 14 Feb 2019 14:07:37 +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 2CC702E6B1 for ; Thu, 14 Feb 2019 14:07:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728276AbfBNOHh (ORCPT ); Thu, 14 Feb 2019 09:07:37 -0500 Received: from mail-wm1-f67.google.com ([209.85.128.67]:53036 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728665AbfBNOHg (ORCPT ); Thu, 14 Feb 2019 09:07:36 -0500 Received: by mail-wm1-f67.google.com with SMTP id m1so6439741wml.2 for ; Thu, 14 Feb 2019 06:07:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/L+sxL3MJASp3TmTH7GNw+LnZZpZclu+Ja3ElVg4RD8=; b=m+Zorr3Bn7UEl/LP2fUvLjdGJPhcGRAZMxuT7WC0sNZHK3qhvaJjM3YndAVFcH1AGj m0m5Wn2IA3+o5/Oi2OEmneTXFxh4NdHx1nKzfyr84uGoommH5NjXcJ5HfjQNvBQjAaeW 5GmlWZI00Kto5xS8OCwysFbyna2E8BsIfI5YqPZbQTqvcdjPtovVI7SwWbJQenGXbbYj ipMfP2c5Hhi6ZgNgPho4UnK9dtk5BXLhk2NYulxvEdJXJfQcZXsUcuaQwwCOC5vDO5dp VPJpx2JxGWJCCcziSnOn5P9Dw4JBwW8DzHuFxrDFH0rWu8qYxxP9pazS6IlOylkQuGss ZS2w== X-Gm-Message-State: AHQUAuZBUITTZbFtT5wHAWPdIDsqvDApq61wVPRqxi5lYfIgBPuqpQ2Y DSYKcBrUHc8N9Zg6YSGmaw== X-Google-Smtp-Source: AHgI3Ibfj9fwM/pztkmzcb/0rbZ2f+p57Ffj2Jjb3qO9pKSf3BYiLZQotP/c8Xn/MThR/HYD1Cu/QA== X-Received: by 2002:a1c:9810:: with SMTP id a16mr2858203wme.37.1550153255050; Thu, 14 Feb 2019 06:07:35 -0800 (PST) Received: from localhost.localdomain ([213.145.108.55]) by smtp.gmail.com with ESMTPSA id c9sm2067220wrs.84.2019.02.14.06.07.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Feb 2019 06:07:34 -0800 (PST) From: Slavomir Kaslev To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org, slavomir.kaslev@gmail.com Subject: [PATCH 2/3] trace-cmd: Add defines for splice() flags on systems with old glibc Date: Thu, 14 Feb 2019 16:07:22 +0200 Message-Id: <20190214140723.27804-2-kaslevs@vmware.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190214140723.27804-1-kaslevs@vmware.com> References: <20190214140723.27804-1-kaslevs@vmware.com> MIME-Version: 1.0 Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use SPLICE_F_ defines to refer to splice() flags instead of their numeric values. This should be only necessary on systems with glibc version < 2.5. No changes in behavior intended. Signed-off-by: Slavomir Kaslev --- lib/trace-cmd/trace-recorder.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/lib/trace-cmd/trace-recorder.c b/lib/trace-cmd/trace-recorder.c index b941cdc..1b6a995 100644 --- a/lib/trace-cmd/trace-recorder.c +++ b/lib/trace-cmd/trace-recorder.c @@ -26,6 +26,13 @@ # define F_GETPIPE_SZ 1032 /* The Linux number for the option */ #endif +#ifndef SPLICE_F_MOVE +# define SPLICE_F_MOVE 1 +# define SPLICE_F_NONBLOCK 2 +# define SPLICE_F_MORE 4 +# define SPLICE_F_GIFT 8 +#endif + struct tracecmd_recorder { int fd; int fd1; @@ -122,10 +129,10 @@ tracecmd_create_buffer_recorder_fd2(int fd, int fd2, int cpu, unsigned flags, recorder->cpu = cpu; recorder->flags = flags; - recorder->fd_flags = 1; /* SPLICE_F_MOVE */ + recorder->fd_flags = SPLICE_F_MOVE; if (!(recorder->flags & TRACECMD_RECORD_BLOCK)) - recorder->fd_flags |= 2; /* and NON_BLOCK */ + recorder->fd_flags |= SPLICE_F_NONBLOCK; /* Init to know what to free and release */ recorder->trace_fd = -1; @@ -349,7 +356,7 @@ static long splice_data(struct tracecmd_recorder *recorder) long ret; read = splice(recorder->trace_fd, NULL, recorder->brass[1], NULL, - recorder->pipe_size, 1 /* SPLICE_F_MOVE */); + recorder->pipe_size, SPLICE_F_MOVE); if (read < 0) { if (errno != EAGAIN && errno != EINTR) { warning("recorder error in splice input"); @@ -421,7 +428,7 @@ static void set_nonblock(struct tracecmd_recorder *recorder) fcntl(recorder->trace_fd, F_SETFL, flags | O_NONBLOCK); /* Do not block on streams for write */ - recorder->fd_flags |= 2; /* NON_BLOCK */ + recorder->fd_flags |= SPLICE_F_NONBLOCK; } long tracecmd_flush_recording(struct tracecmd_recorder *recorder)