{"id":2225814,"url":"http://patchwork.ozlabs.org/api/1.2/covers/2225814/?format=json","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=json","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=json","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=json","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":"","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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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 ","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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","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(-)"}