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=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 AC2F3C4363A for ; Wed, 28 Oct 2020 22:20:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 61C80206D4 for ; Wed, 28 Oct 2020 22:20:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603923609; bh=G+4eHaTlr1oso7K1WB9indQYOj4awsZeCRmwhMfptrI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=MIm37a2Dm6sHIC1g1kZM73N/c+oeJWTL7TnayGgcIR2l8nWitfV3+DbvGvkxIsLaw z8Llp2bf7HlF0gJkimeex9k2UWuc/0oGxE6bVa/udzj94WPr4vNS1vMtpHqNFBg0v3 5yApHXYYT3TczsvSBC8ngdLnbhsFP9dHgL5UYYUQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732103AbgJ1WUH (ORCPT ); Wed, 28 Oct 2020 18:20:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:60518 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731746AbgJ1WRo (ORCPT ); Wed, 28 Oct 2020 18:17:44 -0400 Received: from localhost (i15-lef02-th2-89-83-213-3.ft.lns.abo.bbox.fr [89.83.213.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4D28F247A8; Wed, 28 Oct 2020 14:56:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603896999; bh=G+4eHaTlr1oso7K1WB9indQYOj4awsZeCRmwhMfptrI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=giJ4paqw6VXp5JsOpN/I2IyFY+mM1UjwmZP6u9bIQ70hUw+iM7gnucFEzOt8utrqY iD/mC1KMnzey/eD8NanN2YQVqSHHv9QjZsMkrNjl3vYfAZO+M0nKV0W5dKfg/Y0Mbp OPab+8Vj06cj+F7wdctoX8MKULwMSdKdGzv/58v4= Date: Wed, 28 Oct 2020 15:56:37 +0100 From: Frederic Weisbecker To: Peter Zijlstra Cc: mingo@kernel.org, linux-kernel@vger.kernel.org, will@kernel.org, paulmck@kernel.org, hch@lst.de, axboe@kernel.dk, chris@chris-wilson.co.uk, davem@davemloft.net, kuba@kernel.org, fweisbec@gmail.com, oleg@redhat.com, vincent.guittot@linaro.org Subject: Re: [PATCH v3 5/6] irq_work: Provide irq_work_queue_remote() Message-ID: <20201028145637.GF229044@lothringen> References: <20201028110707.971887448@infradead.org> <20201028111221.526249871@infradead.org> <20201028134046.GE229044@lothringen> <20201028145324.GD2628@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201028145324.GD2628@hirez.programming.kicks-ass.net> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 28, 2020 at 03:53:24PM +0100, Peter Zijlstra wrote: > On Wed, Oct 28, 2020 at 02:40:46PM +0100, Frederic Weisbecker wrote: > > On Wed, Oct 28, 2020 at 12:07:12PM +0100, Peter Zijlstra wrote: > > > While the traditional irq_work relies on the ability to self-IPI, it > > > makes sense to provide an unconditional irq_work_queue_remote() > > > interface. > > > > We may need a reason as well here. > > Rewrote it like so. > --- > > While the traditional irq_work relies on the ability to self-IPI, the > remote irq_work only requires generic SMP bits and can thus be made > available unconditionally. Thanks!