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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,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 0619BC33CB1 for ; Thu, 16 Jan 2020 14:44:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDD97207E0 for ; Thu, 16 Jan 2020 14:44:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579185897; bh=4upz+fdluUISoJZ33aDVbQ1x81k94Nw4AOfmfeoVQZ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FMUJjcG51WwUi4Pbo2QzPCy1yZRDzrfcYtWUeDCHMpCH2GUDQDtVjmqS57v02b2Jx hIUFkFDaj15FdCUnYvKvoscolmONx86ySwL2z68+6AxKhSDDvHMZDB29H5coRixS4x +6j0jkRLA33fhBRxaStb7MIZg2hdzNrKMemm7F80= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726371AbgAPOo5 (ORCPT ); Thu, 16 Jan 2020 09:44:57 -0500 Received: from mail.kernel.org ([198.145.29.99]:35436 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726151AbgAPOo5 (ORCPT ); Thu, 16 Jan 2020 09:44:57 -0500 Received: from localhost.localdomain (NE2965lan1.rev.em-net.ne.jp [210.141.244.193]) (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 EE1912075B; Thu, 16 Jan 2020 14:44:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579185896; bh=4upz+fdluUISoJZ33aDVbQ1x81k94Nw4AOfmfeoVQZ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lSvM9Bj/NOwNqHbD6Pu9DMbkqlfc5gX1JoIItPS1FjXevogDBXBKS3FsMWOd5BcQM oDBxU3hJ0dnSiC5N/LfEPppkICShyhQsZd9Xzns7H/1eZNq6FcLG9CI3A55EQZyVSe 2m6CFZpk+rqbCBYJZpH6MXCXEcHVZcTP017JKnsU= From: Masami Hiramatsu To: Brendan Gregg , Steven Rostedt , Alexei Starovoitov Cc: mhiramat@kernel.org, Ingo Molnar , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Borkmann , Arnaldo Carvalho de Melo , "David S . Miller" , paulmck@kernel.org, joel@joelfernandes.org, "Naveen N . Rao" , Anil S Keshavamurthy Subject: [RFT PATCH 04/13] kprobes: Make optimizer delay to 1 second Date: Thu, 16 Jan 2020 23:44:52 +0900 Message-Id: <157918589199.29301.4419459150054220408.stgit@devnote2> X-Mailer: git-send-email 2.20.1 In-Reply-To: <157918584866.29301.6941815715391411338.stgit@devnote2> References: <157918584866.29301.6941815715391411338.stgit@devnote2> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Since the 5 jiffies delay for the optimizer is too short to wait for other probes, make it longer, like 1 second. Signed-off-by: Masami Hiramatsu --- kernel/kprobes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 0dacdcecc90f..9c6e230852ad 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -469,7 +469,8 @@ static int kprobe_optimizer_queue_update; static void kprobe_optimizer(struct work_struct *work); static DECLARE_DELAYED_WORK(optimizing_work, kprobe_optimizer); -#define OPTIMIZE_DELAY 5 +/* Wait 1 second for starting optimization */ +#define OPTIMIZE_DELAY HZ /* * Optimize (replace a breakpoint with a jump) kprobes listed on