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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A2B9C433EF for ; Wed, 27 Apr 2022 02:46:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357233AbiD0CtG (ORCPT ); Tue, 26 Apr 2022 22:49:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41330 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357242AbiD0Cs5 (ORCPT ); Tue, 26 Apr 2022 22:48:57 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 10E61939A4; Tue, 26 Apr 2022 19:45:48 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id B5A5BB823FC; Wed, 27 Apr 2022 02:45:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F111C385AD; Wed, 27 Apr 2022 02:45:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651027545; bh=/8i2EjrVabnjrNzstULS7RbhxgjFnDrDmZdVsVHErZc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qx4UPrkzSoQSLhfEBDU2aapQU0Kx9MCVkgN7+JAWok6cXC8FxPUCyl/bGEoms9Viy FzEoKfsdOsRT41EiheBv2sDiNpjs2/BWhPUoieb/B1Bs3sqtyNKlbhGzhAmznpFEi4 8trfi1lB2PSqkvaDiDY8WMlRk5g6zwhfS2g6RQU+ixxDZNLvoPIWVDb6cwyaKraxSw k6Rpq52XSWvwSsLzCtHmbJzry/TrKO1gJFaxCvlwoj/pfqGKPUeAWgxo4TaNi0ZqYU aNXpaXTEBKJvAwmVimIgeE0Zt0oHfzVkWpxYf8CneOH+rAaiJOo4TiIRR/8kXsLuHv qCTH2spdOV04A== Date: Wed, 27 Apr 2022 08:15:39 +0530 From: Vinod Koul To: Allen Pais Cc: olivier.dautricourt@orolia.com, sr@denx.de, keescook@chromium.org, linux-hardening@vger.kernel.org, ludovic.desroches@microchip.com, tudor.ambarus@microchip.com, f.fainelli@gmail.com, rjui@broadcom.com, sbranden@broadcom.com, bcm-kernel-feedback-list@broadcom.com, nsaenz@kernel.org, paul@crapouillou.net, Eugeniy.Paltsev@synopsys.com, gustavo.pimentel@synopsys.com, vireshk@kernel.org, andriy.shevchenko@linux.intel.com, leoyang.li@nxp.com, zw@zh-kernel.org, wangzhou1@hisilicon.com, shawnguo@kernel.org, s.hauer@pengutronix.de, sean.wang@mediatek.com, matthias.bgg@gmail.com, afaerber@suse.de, mani@kernel.org, logang@deltatee.com, sanju.mehta@amd.com, daniel@zonque.org, haojian.zhuang@gmail.com, robert.jarzmik@free.fr, agross@kernel.org, bjorn.andersson@linaro.org, krzysztof.kozlowski@linaro.org, green.wan@sifive.com, orsonzhai@gmail.com, baolin.wang7@gmail.com, zhang.lyra@gmail.com, patrice.chotard@foss.st.com, linus.walleij@linaro.org, wens@csie.org, jernej.skrabec@gmail.com, samuel@sholland.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC 1/1] drivers/dma/*: replace tasklets with workqueue Message-ID: References: <20220419211658.11403-1-apais@linux.microsoft.com> <20220419211658.11403-2-apais@linux.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220419211658.11403-2-apais@linux.microsoft.com> Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org On 19-04-22, 21:16, Allen Pais wrote: > The tasklet is an old API which will be deprecated, workqueue API > cab be used instead of them. What is the reason for tasklet removal, I am not sure old is a reason to remove an API... > > This patch replaces the tasklet usage in drivers/dma/* with a > simple work. Dmaengines need very high throughput, one of the reasons in dmaengine API design to use tasklet was higher priority given to them. Will the workqueue allow that...? -- ~Vinod