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=-9.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 3792EC5CFFE for ; Tue, 11 Dec 2018 00:03:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EFF5E214DB for ; Tue, 11 Dec 2018 00:03:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544486638; bh=nrdxOiF3/wOW+yKtLxbMgSydY9m3yAPgq3dT280hxdY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:List-ID:From; b=sI3VDRPslYijybkPG2m0VQ1h2oP2f0UkaKsx8Kg3M2KLTARBIhZuj4EnAX5JSPhJJ fDkTcldaoaoD7gF6Kg+8T82DUkhlvi8VMDkSrRfE4EXbdlTc6N89QO0lXAV5u8srJ6 ApQI0TvLyNDTGQhDtkHzlwKpL/tLJee0YOLK6GWU= DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EFF5E214DB 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 S1730274AbeLKABx (ORCPT ); Mon, 10 Dec 2018 19:01:53 -0500 Received: from mail.kernel.org ([198.145.29.99]:40826 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730235AbeLKABu (ORCPT ); Mon, 10 Dec 2018 19:01:50 -0500 Received: from localhost.localdomain (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 96D1C214ED; Tue, 11 Dec 2018 00:01:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544486509; bh=nrdxOiF3/wOW+yKtLxbMgSydY9m3yAPgq3dT280hxdY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=eq/J6xcd5EJg4jaX4wr4caVWCMx4vTKwVqygl8EIf4hpYsH5BhseXgpNsix6Esmte fqe4+CkDvfxEjA12tYzSKp7eq4eaLhDiPacVSQ4NB8bIJvn8aG4JirfGAqyVry/9/9 TJMHeboev1tPPOAxNh/CBmdcBQJtJ9tD2eyRrtC4= 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 v8 03/22] tracing: Add hist trigger handler.action documentation to README Date: Mon, 10 Dec 2018 18:01:17 -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 911470ad9e94..1abde13a7eab 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4698,6 +4698,7 @@ 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" @@ -4739,7 +4740,16 @@ 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