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=-7.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 9DB49C43457 for ; Mon, 12 Oct 2020 16:25:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6220820870 for ; Mon, 12 Oct 2020 16:25:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602519931; bh=aqTp704/1bVxz28pVMCnJoCjkbb40QSAr0RTWkY+SlA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=mvs1GHgNCAzUsI8Ld06UnrRZRP00bNAh8Y7El7AmOwt/lzWsT1PjL0uGCv9AWM1s1 onPvmkw47uD67B2P9zNl0tSvMa7/VoOg9A9MMixbMM1F9ePcVS2sVuWibFHkv3JYZy UF4sS4NAQbbOjSfnpbBVfl7efUt3OvkJRTzhlcAk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390612AbgJLQZa (ORCPT ); Mon, 12 Oct 2020 12:25:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390420AbgJLQZa (ORCPT ); Mon, 12 Oct 2020 12:25:30 -0400 Received: from mail-ed1-x544.google.com (mail-ed1-x544.google.com [IPv6:2a00:1450:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7FBD3C0613D0; Mon, 12 Oct 2020 09:25:30 -0700 (PDT) Received: by mail-ed1-x544.google.com with SMTP id dn5so17603366edb.10; Mon, 12 Oct 2020 09:25:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=pXnKCzWlycdnJfAJsoMlDKin2LVR9i0PPejrjR/dATY=; b=rJB4vOGQ5Txj0jSdSXiPQKtk2ctrB9lcGAj+bQmxUcYQHIEcmfAyEO5hUPnV6kTvuB TGx699EWJmPnbhJysZCO8JUUq9m2KbyVXLKc9xSrcUepB86sq4QdA57Y4f06QqSfZYWB vVVs1CjKMTLuVa4acFmH3MSH3sjbsjo+4/S/LgITXdycOEs7mQl9pIXdniS7hNXNeXqJ msgCoES4i5TGjLG5myOYs4YB3TQkQ0nk28mhSJi8mXLTrgOjTbp25wwjSttyxE6MKlSg SXgTlnirTP/JrkqTJaP3O5MRxKNJY2EoTbkFeXSFQjT2RC/war7TurEmF8eKK7RQHwqz HKMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=pXnKCzWlycdnJfAJsoMlDKin2LVR9i0PPejrjR/dATY=; b=pIvvqV16JF6Rja+Svq6/+ikxq76l8Cj5xtscgbYFSEHeBA/oXMT203fGyfxvXStkii Cic5BQPKLygDvYWgxFAd+Xfr/7s8fQV1pOCS8wUyG97Yi2R0uvOLspE2mfUek2RkhGN5 Ovm7H/6tYENSuC1d2EJVUtlAAGNDXiYs9zq+fwGTU7Iom/VWKc+4lb04ldB5h/JHTodn DKN7Qjbcu0apSgiAoT5szJtK0sYiRn/BXtOJVfMt6yD1bGgtFhlgdjwD/sGCjFNxCF7s /zltoRZIHx/yf9ge3L7zTj6uGLrhWWuW4IV3gCjTDxGPjToVUIAc7rDPyQdBI1yQey69 8f0Q== X-Gm-Message-State: AOAM532SJZQiTtcvFORF3jnAqslNj4ae7oKwoxeoUkV4TYLek7dm+W40 PuJWcVCx+GRQ/oFTqR14cEU= X-Google-Smtp-Source: ABdhPJxUrBRGIHn+R31lvsWajGgryxHHFmrLEReFiTlJ4LUctHlT7QgptLY3CbpY8hHle2l5/1q+ig== X-Received: by 2002:aa7:dc12:: with SMTP id b18mr15049308edu.295.1602519929248; Mon, 12 Oct 2020 09:25:29 -0700 (PDT) Received: from gmail.com (563B81C8.dsl.pool.telekom.hu. [86.59.129.200]) by smtp.gmail.com with ESMTPSA id sd18sm10752597ejb.24.2020.10.12.09.25.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Oct 2020 09:25:28 -0700 (PDT) Sender: Ingo Molnar Date: Mon, 12 Oct 2020 18:25:26 +0200 From: Ingo Molnar To: Masami Hiramatsu Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Eddy_Wu@trendmicro.com, x86@kernel.org, davem@davemloft.net, rostedt@goodmis.org, naveen.n.rao@linux.ibm.com, anil.s.keshavamurthy@intel.com, linux-arch@vger.kernel.org, cameron@moodycamel.com, oleg@redhat.com, will@kernel.org, paulmck@kernel.org Subject: Re: [PATCH v5 19/21] asm-generic/atomic: Add try_cmpxchg() fallbacks Message-ID: <20201012162526.GB3687261@gmail.com> References: <159870598914.1229682.15230803449082078353.stgit@devnote2> <159870621515.1229682.15506193091065001742.stgit@devnote2> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <159870621515.1229682.15506193091065001742.stgit@devnote2> Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org * Masami Hiramatsu wrote: > From: Peter Zijlstra > > Only x86 provides try_cmpxchg() outside of the atomic_t interfaces, > provide generic fallbacks to create this interface from the widely > available cmpxchg() function. > > Signed-off-by: Peter Zijlstra (Intel) > Acked-by: Will Deacon Your SOB was missing here too. Thanks, Ingo