From patchwork Fri Oct 15 15:14:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Andrzej Siewior X-Patchwork-Id: 12562337 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9CA6CC433FE for ; Fri, 15 Oct 2021 15:14:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8661160E0C for ; Fri, 15 Oct 2021 15:14:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240871AbhJOPQd (ORCPT ); Fri, 15 Oct 2021 11:16:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240842AbhJOPQc (ORCPT ); Fri, 15 Oct 2021 11:16:32 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB84CC061570; Fri, 15 Oct 2021 08:14:25 -0700 (PDT) From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1634310863; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=JVzk7Wa/jMbuTbH5+3LVxNUlhbhJgVSboKsnYOECFqE=; b=O4QVslOsnoJIpHdVt4nDkOUgDCmlx3yuJGD3s3izKlZJvYcSEU6GMu9JnqWQiqzBKNgeD2 Kg+fW+gmupCYRDQYrj2R4Qo4cSbiJf6VEKASHzrrRatku5NP43Mgz+GZWDBOt+DR6Dh/95 0sLYrTwS1yZ3bDEvfBxxQ7Ts/KCnPxW+FKv8Y2HevLt5WnU7FC5BevBHg5RXeBeXzr8B80 mNrfYCNEzcuwVPsNGzm84m03XS9VedKgivweOoS2hdx/yOwinmjfQWlwFuNQAT2wm7AVU2 ByQUmGN3CfMcI43LqwMG7zeqpvpozpEcRtQf28mVTucKMHm9F9PXLKWenYAQQw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1634310863; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=JVzk7Wa/jMbuTbH5+3LVxNUlhbhJgVSboKsnYOECFqE=; b=kgDO2iX7Ul8JtzhLFs3Fa8p9czh3ABjQxkWidVvhv69FHl6+NJmfYr+cmNwfj0GHCJ8eAP e1C/HMRqNtJnQXBg== To: linux-block@vger.kernel.org, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net Cc: Jens Axboe , Ulf Hansson , "James E.J. Bottomley" , "Martin K. Petersen" , Alan Stern , Greg Kroah-Hartman , Christoph Hellwig , Thomas Gleixner Subject: [RFC PATCH 0/3] blk-mq: Allow to complete requests directly Date: Fri, 15 Oct 2021 17:14:09 +0200 Message-Id: <20211015151412.3229037-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This is a follow up to https://lkml.kernel.org/r/20201102181238.GA17806@infradead.org where I *think* we agreed to audit driver which complete their blk request from process context and then let them complete the request directly instead going through ksoftirqd. This series converts a part from the MMC layer which completes the requests from kworker/ preemptible context. It was verified with sdhci-pci device under normal usage. It also converts the usb-storage driver which is slightly complicated since it goes through the SCSI layer. Sebastian