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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2DD58C433FE for ; Tue, 8 Nov 2022 14:06:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235068AbiKHOGI (ORCPT ); Tue, 8 Nov 2022 09:06:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235064AbiKHOGB (ORCPT ); Tue, 8 Nov 2022 09:06:01 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2989B7054C for ; Tue, 8 Nov 2022 06:06:01 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B5751615B4 for ; Tue, 8 Nov 2022 14:06:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73D6BC433D6; Tue, 8 Nov 2022 14:05:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667916360; bh=ruYVwcD0pygA3xGuMQL2vNu76g0uIown+H+aSRRP5ko=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=p7f7guIeasNMm1cv1+VmJX/h9/leurpS1v+9kX3D5v5XpT9xTb344ChGQehMY6Uo2 VWok2oo0uJm3t+80bnu5LdPnK0gri02DWyO0uSEEbMooFPZGHvXbZ/hO8II5Jmt6Xd m+hzRN/4a97n3odW8Uj0wSOfP2zCHrJH9K2gnEq0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zheng Yejian , "Masami Hiramatsu (Google)" , Jonathan Corbet Subject: [PATCH 5.15 111/144] tracing/histogram: Update document for KEYS_MAX size Date: Tue, 8 Nov 2022 14:39:48 +0100 Message-Id: <20221108133350.003231404@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221108133345.346704162@linuxfoundation.org> References: <20221108133345.346704162@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Zheng Yejian commit a635beeacc6d56d2b71c39e6c0103f85b53d108e upstream. After commit 4f36c2d85ced ("tracing: Increase tracing map KEYS_MAX size"), 'keys' supports up to three fields. Signed-off-by: Zheng Yejian Cc: stable@vger.kernel.org Acked-by: Masami Hiramatsu (Google) Link: https://lore.kernel.org/r/20221017103806.2479139-1-zhengyejian1@huawei.com Signed-off-by: Jonathan Corbet Signed-off-by: Greg Kroah-Hartman --- Documentation/trace/histogram.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/Documentation/trace/histogram.rst +++ b/Documentation/trace/histogram.rst @@ -39,7 +39,7 @@ Documentation written by Tom Zanussi will use the event's kernel stacktrace as the key. The keywords 'keys' or 'key' can be used to specify keys, and the keywords 'values', 'vals', or 'val' can be used to specify values. Compound - keys consisting of up to two fields can be specified by the 'keys' + keys consisting of up to three fields can be specified by the 'keys' keyword. Hashing a compound key produces a unique entry in the table for each unique combination of component keys, and can be useful for providing more fine-grained summaries of event data.