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{ "id": 2225814, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2225814/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260421161132.99878-1-kwolf@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260421161132.99878-1-kwolf@redhat.com>", "list_archive_url": null, "date": "2026-04-21T16:11:25", "name": "[0/7] ide: Fix deadlock between TRIM and drain", "submitter": { "id": 2714, "url": "http://patchwork.ozlabs.org/api/1.2/people/2714/?format=api", "name": "Kevin Wolf", "email": "kwolf@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260421161132.99878-1-kwolf@redhat.com/mbox/", "series": [ { "id": 500847, "url": "http://patchwork.ozlabs.org/api/1.2/series/500847/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500847", "date": "2026-04-21T16:11:27", "name": "ide: Fix deadlock between TRIM and drain", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500847/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2225814/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=btbRHvcR;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Tue, 21 Apr 2026 12:12:14 -0400", "from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-348-_OntLI68Orim5OCyTDfXwA-1; Tue,\n 21 Apr 2026 12:12:02 -0400", "from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id 677DA19560A2; Tue, 21 Apr 2026 16:12:01 +0000 (UTC)", "from merkur.fritz.box (unknown [10.44.49.173])\n by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id 3E3AA1800660; Tue, 21 Apr 2026 16:11:58 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1776787924;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding;\n bh=BY/7TFTwPMiMPlmmztYgB8mFgBIu0JsaGz+wXMfjMGQ=;\n b=btbRHvcRCtpqXLG5hW0fbdvCA3uJSVbd88F9OQ2iFUZEQW2WFEERM2ZCkULONir1aSdL3w\n rayPVzQ3/VvxHljZqb0sEhUbXD1U8tdVGneVoj6wijEfrK3/y0MzoSj6JZLs+9hZL7mybI\n npGgRNfTCv6Nuo6BFrEigBDtbaqqcbI=", "X-MC-Unique": "_OntLI68Orim5OCyTDfXwA-1", "X-Mimecast-MFC-AGG-ID": "_OntLI68Orim5OCyTDfXwA_1776787921", "From": "Kevin Wolf <kwolf@redhat.com>", "To": "qemu-block@nongnu.org", "Cc": "kwolf@redhat.com, hreitz@redhat.com, jsnow@redhat.com,\n qemu-devel@nongnu.org, qemu-stable@nongnu.org", "Subject": "[PATCH 0/7] ide: Fix deadlock between TRIM and drain", "Date": "Tue, 21 Apr 2026 18:11:25 +0200", "Message-ID": "<20260421161132.99878-1-kwolf@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.111", "Received-SPF": "pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com;\n 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,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Patches 2 and 4 are the core of the fix, see their commit message for\ndetails.\n\nKevin Wolf (7):\n blkdebug: Add 'delay-ns' option\n block: Add blk_co_start/end_request() and BDRV_REQ_NO_QUEUE\n block: Add flags parameter to blk_*_pdiscard()\n ide: Minimal fix for deadlock between TRIM and drain\n ide: Clean up ide_trim_co_entry() to be idiomatic coroutine code\n ide-test: Factor out wait_dma_completion()\n ide-test: Test reset during TRIM\n\n qapi/block-core.json | 4 +\n include/block/block-common.h | 11 ++-\n include/system/block-backend-io.h | 6 +-\n block/blkdebug.c | 15 +++-\n block/block-backend.c | 47 +++++++---\n block/export/virtio-blk-handler.c | 2 +-\n block/mirror.c | 4 +-\n hw/ide/core.c | 110 +++++++++++-------------\n nbd/server.c | 2 +-\n qemu-io-cmds.c | 2 +-\n tests/qtest/ide-test.c | 137 ++++++++++++++++++++++++------\n tests/unit/test-block-iothread.c | 4 +-\n 12 files changed, 236 insertions(+), 108 deletions(-)" }