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=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B3039C34047 for ; Wed, 19 Feb 2020 17:06:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81E8E206E2 for ; Wed, 19 Feb 2020 17:06:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="O8HyjDjI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726663AbgBSRGm (ORCPT ); Wed, 19 Feb 2020 12:06:42 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:37052 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726558AbgBSRGm (ORCPT ); Wed, 19 Feb 2020 12:06:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=2VDm9Fwq67hCgvrGLKykwfQSF1ZpYJUcsbBnQHg4U9M=; b=O8HyjDjI2sGm6H6UZ8E5I1dKat XIfbN3C0aPnxB1MU/SjvSynwdpUzbABrOO5i4DvLL2fxQ6yHBKAhkz3P3BJ+dq59SxPXAs/RNjFxd 9NyzmpHrQXeK3+QLp3D5eQ7yGep63Bnrod8J4p7y2f7p9YFv/yGqtjH2iCMbSh65lz+hDkeHgN6RS W45VjWlZB3nmpq45D/x574srSS9SJiFxn4YSCTDHG67SdToR48JmK9EmaqVweBPUGcXo1n53RRG7o qrkuNC5GYKUxFguqmDBbrIr3/hCkXzkZhRlhzFKkFPeFmQhXF5FJ653p4sTtCa4C2hfYu5SrB4DOD PgCFKrtA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1j4Snb-00014d-FK; Wed, 19 Feb 2020 17:06:11 +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 F1BCD300606; Wed, 19 Feb 2020 18:04:16 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 46FAD202287DD; Wed, 19 Feb 2020 18:06:09 +0100 (CET) Date: Wed, 19 Feb 2020 18:06:09 +0100 From: Peter Zijlstra To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, rostedt@goodmis.org, mingo@kernel.org, joel@joelfernandes.org, gregkh@linuxfoundation.org, gustavo@embeddedor.com, tglx@linutronix.de, josh@joshtriplett.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, luto@kernel.org, tony.luck@intel.com, frederic@kernel.org, dan.carpenter@oracle.com, mhiramat@kernel.org, Mark Rutland , Marco Elver Subject: Re: [PATCH v3 18/22] asm-generic/atomic: Use __always_inline for fallback wrappers Message-ID: <20200219170609.GN18400@hirez.programming.kicks-ass.net> References: <20200219144724.800607165@infradead.org> <20200219150745.416854783@infradead.org> <20200219165521.GG2935@paulmck-ThinkPad-P72> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200219165521.GG2935@paulmck-ThinkPad-P72> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 19, 2020 at 08:55:21AM -0800, Paul E. McKenney wrote: > On Wed, Feb 19, 2020 at 03:47:42PM +0100, Peter Zijlstra wrote: > > While the fallback wrappers aren't pure wrappers, they are trivial > > nonetheless, and the function they wrap should determine the final > > inlining policy. > > > > For x86 tinyconfig we observe: > > - vmlinux baseline: 1315988 > > - vmlinux with patch: 1315928 (-60 bytes) > > > > Suggested-by: Mark Rutland > > Signed-off-by: Marco Elver > > Acked-by: Mark Rutland > > Signed-off-by: Paul E. McKenney > > And this one and the previous one are also already in -tip, FYI. That's where I found them ;-) Stole them from tip/locking/kcsan.