From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 B6B4AC43610 for ; Wed, 14 Nov 2018 20:18:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7CC0922525 for ; Wed, 14 Nov 2018 20:18:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Atw2MFEx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7CC0922525 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732367AbeKOGXE (ORCPT ); Thu, 15 Nov 2018 01:23:04 -0500 Received: from mail.kernel.org ([198.145.29.99]:39634 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728882AbeKOGXD (ORCPT ); Thu, 15 Nov 2018 01:23:03 -0500 Received: from tzanussi-mobl.hsd1.il.comcast.net (c-98-220-238-81.hsd1.il.comcast.net [98.220.238.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CEF4522520; Wed, 14 Nov 2018 20:18:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1542226702; bh=hTD9A4ZtWL4OjVeMcPeg4eoGcINlLEUu5zJh2WK9yZg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=Atw2MFExEZKfnNCqdXbiklxsEHF+tDNCbxEPQs+uhAeVUcmP/s+ScYix5xh1Czi6H uk8N8OgnFI3MLn0Smf7SbC/mZOsFRoSoNLVM963g2j45E2CQudHuhSp6Zcq8C/iCN2 c/NhAiiYyLQk9QE+0PIOoCWKhruzwVEG2gFoJ9js= From: Tom Zanussi To: rostedt@goodmis.org Cc: tglx@linutronix.de, mhiramat@kernel.org, namhyung@kernel.org, vedang.patel@intel.com, bigeasy@linutronix.de, joel@joelfernandes.org, mathieu.desnoyers@efficios.com, julia@ni.com, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: [PATCH v7 03/16] tracing: Add hist trigger handler.action documentation to README Date: Wed, 14 Nov 2018 14:18:00 -0600 Message-Id: X-Mailer: git-send-email 2.14.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tom Zanussi Add abbreviated documentation for handlers and actions to README. Signed-off-by: Tom Zanussi --- kernel/trace/trace.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ff1c4b20cd0a..998955dcc3ca 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4686,6 +4686,7 @@ static const char readme_msg[] = "\t [:size=#entries]\n" "\t [:pause][:continue][:clear]\n" "\t [:name=histname1]\n" + "\t [:.]\n" "\t [if ]\n\n" "\t When a matching event is hit, an entry is added to a hash\n" "\t table using the key(s) and value(s) named, and the value of a\n" @@ -4727,7 +4728,16 @@ static const char readme_msg[] = "\t The enable_hist and disable_hist triggers can be used to\n" "\t have one event conditionally start and stop another event's\n" "\t already-attached hist trigger. The syntax is analagous to\n" - "\t the enable_event and disable_event triggers.\n" + "\t the enable_event and disable_event triggers.\n\n" + "\t Hist trigger handlers and actions are executed whenever a\n" + "\t a histogram entry is added or updated. They take the form:\n\n" + "\t .\n\n" + "\t The available handlers are:\n\n" + "\t onmatch(matching.event) - invoke on addition or update\n" + "\t onmax(var) - invoke if var exceeds current max\n\n" + "\t The available actions are:\n\n" + "\t (param list) - generate synthetic event\n" + "\t save(field,...) - save current event fields\n" #endif ; -- 2.14.1