From patchwork Wed Jan 5 17:05:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keith Busch X-Patchwork-Id: 12704528 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 E1528C433F5 for ; Wed, 5 Jan 2022 17:05:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242123AbiAERF1 (ORCPT ); Wed, 5 Jan 2022 12:05:27 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:40256 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242089AbiAERF0 (ORCPT ); Wed, 5 Jan 2022 12:05:26 -0500 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 dfw.source.kernel.org (Postfix) with ESMTPS id A949D617C9 for ; Wed, 5 Jan 2022 17:05:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8CAD1C36AE9; Wed, 5 Jan 2022 17:05:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641402325; bh=WC9QR45b9hMLbj6d6HxZ8ypkwBnGddX9RlV4N19YuXs=; h=From:To:Cc:Subject:Date:From; b=X5zo9rSHRZkW+2OBJ/lxCHzmmzG8R21+rDn96plb9ETPb2CJS0KDyknFy7vDWwNce D0bhNXtZi/nZFSR499r6OwZpLBoV9oIu7bG0gZnBr+P1gtPZ8Vum8RQ8tGJvvixPpa IUMMtJLLH/8vLIzNTcT3i0SR51AHsE7vgQXIebk3ARLcLtyFk+YjSHgjaamWgDeiar jwwHPGQxllzvK6TdyYzv1ctFYZqzYbnyBvBxIHb2n3ggSL0wqMMsdnu3IXprG3O7H1 R5vhgFGVSDM/jzkOC89KPyV9umH7KKompzwuq/WydwMr3JWw/F4HvL22Iy/viQA9Ef PsGNzRw/ZKlMA== From: Keith Busch To: linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, axboe@kernel.dk Cc: hch@lst.de, sagi@grimberg.me, mgurtovoy@nvidia.com, Keith Busch Subject: [PATCHv3 0/4] queue_rqs error handling Date: Wed, 5 Jan 2022 09:05:14 -0800 Message-Id: <20220105170518.3181469-1-kbusch@kernel.org> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org The only real change since v2 is a prep patch that relocates the rq list macros to blk-mq.h since that's where 'struct request' is defined. Patch 3 removes the 'next' parameter since it is trivially obtainable via 'rq->rq_next' anyway. Otherwise, the series is the same as v2 and tested with lots of random error injection in the prep path. The same errors would have lost requests in the current driver, but is successful with this series. Keith Busch (4): block: move rq_list macros to blk-mq.h block: introduce rq_list_for_each_safe macro block: introduce rq_list_move nvme-pci: fix queue_rqs list splitting drivers/nvme/host/pci.c | 28 +++++++++++------------ fs/io_uring.c | 2 +- include/linux/blk-mq.h | 50 +++++++++++++++++++++++++++++++++++++++++ include/linux/blkdev.h | 29 ------------------------ 4 files changed, 65 insertions(+), 44 deletions(-)