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 31EF4C38142 for ; Tue, 31 Jan 2023 09:05:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230152AbjAaJFC (ORCPT ); Tue, 31 Jan 2023 04:05:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232029AbjAaJEp (ORCPT ); Tue, 31 Jan 2023 04:04:45 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9158D4F35F; Tue, 31 Jan 2023 01:01:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=zCbjOcyGzOWndtcqoe67R24FhbbEYi80tEJLcTYUHz8=; b=IE2HvVp80OWc9Ff7Ji6enEIT18 fWphPN3EAe5IPsn0H0aVIUCkBDjWNIYA5fs3KHHKHTnCGdSbJiSCFHegx2zeHIlsTxdcYMDPgSgaO eBVpYzPCNMvd79GCOTDNt9Zvf2DbsQc+2JYdoE4w+/ZWGttApIPw106fonf/v22443HftEum+2OYj UmninENwEMa+4PafuMrb9yTBX9rd2NZAAA98EpcldqBr7QafrV/kihrWdypj4M0GFiKil7PtOoSbO +ZVfQa1d6gEKPmGdQU4vM1UZFkA3e9mu0RLit/k2A8jBb6j+ZMeAPNl0Tl2bisCoWRhUhi4PA7F38 T/Rpr4Uw==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pMmVv-006t05-7B; Tue, 31 Jan 2023 09:01:15 +0000 Date: Tue, 31 Jan 2023 01:01:15 -0800 From: Christoph Hellwig To: Linus Walleij Cc: linux-mmc@vger.kernel.org, Ulf Hansson , linux-block@vger.kernel.org, Paolo Valente Subject: Re: [PATCH] mmc: core: Imply IOSCHED_BFQ Message-ID: References: <20230131084742.1038135-1-linus.walleij@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230131084742.1038135-1-linus.walleij@linaro.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org On Tue, Jan 31, 2023 at 09:47:42AM +0100, Linus Walleij wrote: > If we enable the MMC/SD block layer, use Kconfig to imply the BFQ > I/O scheduler. > > As all MMC/SD devices are single-queue, this is the scheduler that > users want so let's be helpful and make sure it gets > default-selected into a manual kernel configuration. It will still > need to be enabled at runtime (usually with udev scripts). NAK. Nothing requires a specific scheduler here - the scheduler is a pure user choice.