From patchwork Wed Aug 23 23:59:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 1825048 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=UC7rBZnH; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RWNWc5xwtz1yNm for ; Thu, 24 Aug 2023 10:00:28 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qYxlO-0000Ox-GC; Wed, 23 Aug 2023 19:59:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qYxlN-0000OA-1H for qemu-devel@nongnu.org; Wed, 23 Aug 2023 19:59:49 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qYxlK-0004wI-KH for qemu-devel@nongnu.org; Wed, 23 Aug 2023 19:59:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1692835185; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=pUjzAkneiLqLNa5aHcR+/LrBY+OKTMr5JSu455SGbUI=; b=UC7rBZnHoX7eXFms9CkfSBjOi6BIixLhkNvEpx/oyvF6sf+NHsxvh5aJgmkhs/NfVOQMl8 3/NJvQg9zU7ZscGkbKQkt6Rt6wBnksNXMv/VWu6+LNL5/PKdAQjCf8lMsT09LiFK53YRdg tKVWcOetW3ilrFLHYkCRPrrIPkH2k04= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-681-24axrnbtMNSnPvJtuJEEcg-1; Wed, 23 Aug 2023 19:59:41 -0400 X-MC-Unique: 24axrnbtMNSnPvJtuJEEcg-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E946B853069; Wed, 23 Aug 2023 23:59:40 +0000 (UTC) Received: from localhost (unknown [10.39.192.7]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0FFE54A9004; Wed, 23 Aug 2023 23:59:39 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Cc: Vladimir Sementsov-Ogievskiy , Hanna Reitz , Paolo Bonzini , kwolf@redhat.com, , Klaus Jensen , John Snow , Cleber Rosa , =?utf-8?q?Phi?= =?utf-8?q?lippe_Mathieu-Daud=C3=A9?= , Keith Busch , David Hildenbrand , Stefan Hajnoczi , Peter Xu , Fam Zheng Subject: [PATCH v2 0/4] block-backend: process I/O in the current AioContext Date: Wed, 23 Aug 2023 19:59:34 -0400 Message-ID: <20230823235938.1398382-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.129.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org v2 - Add patch to remove AIOCBInfo->get_aio_context() [Kevin] - Add patch to use qemu_get_current_aio_context() in block-coroutine-wrapper so that the wrappers use the current AioContext instead of bdrv_get_aio_context(). Switch blk_aio_*() APIs over to multi-queue by using qemu_get_current_aio_context() instead of blk_get_aio_context(). This change will allow devices to process I/O in multiple IOThreads in the future. The final patch requires my QIOChannel AioContext series to pass tests/qemu-iotests/check -qcow2 281 because the nbd block driver is now accessed from the main loop thread in addition to the IOThread: https://lore.kernel.org/qemu-devel/20230823234504.1387239-1-stefanha@redhat.com/T/#t Based-on: 20230823234504.1387239-1-stefanha@redhat.com Stefan Hajnoczi (4): block: remove AIOCBInfo->get_aio_context() block-backend: process I/O in the current AioContext block-backend: process zoned requests in the current AioContext block-coroutine-wrapper: use qemu_get_current_aio_context() include/block/aio.h | 1 - include/block/block-global-state.h | 2 ++ include/block/block-io.h | 1 - block/block-backend.c | 35 ++++++++---------------------- block/io.c | 23 +++++++------------- hw/nvme/ctrl.c | 7 ------ softmmu/dma-helpers.c | 8 ------- util/thread-pool.c | 8 ------- scripts/block-coroutine-wrapper.py | 6 ++--- 9 files changed, 21 insertions(+), 70 deletions(-)