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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 8D04BC433DB for ; Wed, 27 Jan 2021 18:46:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4684B64DAD for ; Wed, 27 Jan 2021 18:46:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344148AbhA0SqO (ORCPT ); Wed, 27 Jan 2021 13:46:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344084AbhA0Spm (ORCPT ); Wed, 27 Jan 2021 13:45:42 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 84631C061573 for ; Wed, 27 Jan 2021 10:45:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=rD8CljQu65DLfq8LkyH0pBE2vYkKz5EYDujrWa/e6EU=; b=rLHCmJ0gPHtnmotavllWbTjKpA JdHJPL6ay3AUZdmPzfz9VWcuuvWYnKd8aUErHqbGmq3wIdqdAV9ky9Hqj3ksRfeKU6LANIQEiYvEX 6Hqaoap6aoksYQReHVZE2rSfpYYTLiQ+by4Gp3LaWCnKAcXGK95mNwt4RDG9NSdAJSkQuEGeB40jD Lx5r96Fn34cfcDKH3D9HiNJru8rOqLCIWW9Mc5d09EmcBbJyGwGINnebPOKmJuJ2fDcZuKaXYerEX R5SPeX3eY0/aAScaFMf5r4BuaP6ZQ9HZf4zmREwaqPbmPQBG+1vGqdOsxwTqCcdL0PYmGfdV7/l2y UxXn5FeA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1l4pnQ-007Moe-Cz; Wed, 27 Jan 2021 18:44:05 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id CFF4A3059C6; Wed, 27 Jan 2021 19:44:01 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id ADAED2D1C682A; Wed, 27 Jan 2021 19:44:01 +0100 (CET) Date: Wed, 27 Jan 2021 19:44:01 +0100 From: Peter Zijlstra To: Josh Poimboeuf Cc: Frederic Weisbecker , LKML , Mel Gorman , Michal Hocko , Thomas Gleixner , "Paul E . McKenney" , Ingo Molnar , Michal Hocko , rostedt@goodmis.org, jbaron@akamai.com, ardb@kernel.org Subject: Re: [RFC PATCH 6/8] preempt/dynamic: Provide preempt_schedule[_notrace]() static calls Message-ID: References: <20210118141223.123667-1-frederic@kernel.org> <20210118141223.123667-7-frederic@kernel.org> <20210122165226.GD16371@worktop.programming.kicks-ass.net> <20210126235730.lgfa2uida5se5urn@treble> <20210127155914.jfmr4jay47yck5h5@treble> <20210127163308.cgiq7jxx2uziuhcc@treble> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210127163308.cgiq7jxx2uziuhcc@treble> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 27, 2021 at 10:33:08AM -0600, Josh Poimboeuf wrote: > What did you think about .static_call_tramp_key? I could whip up a > patch later unless you beat me to it. Yeah, I'm not sure.. why duplicate information already present in kallsyms? There's a fair number of features that already require KALLSYMS, I can't really be bothered about adding one more (kprobes, function_tracer, stack_tracer, ftrace_syscalls).