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http://patches.dpdk.org/api/covers/109579/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20220411110013.18624-1-david.marchand@redhat.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20220411110013.18624-1-david.marchand@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20220411110013.18624-1-david.marchand@redhat.com", "date": "2022-04-11T11:00:05", "name": "[RFC,v3,0/8] vhost lock annotations", "submitter": { "id": 1173, "url": "http://patches.dpdk.org/api/people/1173/?format=api", "name": "David Marchand", "email": "david.marchand@redhat.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/cover/20220411110013.18624-1-david.marchand@redhat.com/mbox/", "series": [ { "id": 22474, "url": "http://patches.dpdk.org/api/series/22474/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=22474", "date": "2022-04-11T11:00:05", "name": "vhost lock annotations", "version": 3, "mbox": "http://patches.dpdk.org/series/22474/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/109579/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 80F96A0093;\n\tMon, 11 Apr 2022 13:00:23 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 7384E4114D;\n\tMon, 11 Apr 2022 13:00:23 +0200 (CEST)", "from us-smtp-delivery-124.mimecast.com\n (us-smtp-delivery-124.mimecast.com [170.10.133.124])\n by mails.dpdk.org (Postfix) with ESMTP id AEF1740F35\n for <dev@dpdk.org>; Mon, 11 Apr 2022 13:00:22 +0200 (CEST)", "from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com\n [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS\n (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n us-mta-520-dJS9gjj5N06DMagPCic0CQ-1; Mon, 11 Apr 2022 07:00:21 -0400", "from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com\n [10.11.54.7])\n (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n (No client certificate requested)\n by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 93519811E76;\n Mon, 11 Apr 2022 11:00:20 +0000 (UTC)", "from dmarchan.remote.csb (unknown [10.40.192.83])\n by smtp.corp.redhat.com (Postfix) with ESMTP id 28AF7145B989;\n Mon, 11 Apr 2022 11:00:19 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1649674822;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=1sYDCEGSntc9QQdI0aZrXjKbkxWAAW0ypyDYJcC9wOM=;\n b=ctKjIXIePJf4apLJBBChfM201lBkPAjVVk4yQo5ArAX4V8RhpqQmZKUo/edzGEuhlXOjUk\n wo36FMH44/JV/tdg2KiTMCdLTMhz5y+GtBQfD+nEyAMRSIwYwhJKxSyUotSiTue8SPYZQw\n jTJeJLx4/Q9/mcb0X0FSG4pTMzJFhX8=", "X-MC-Unique": "dJS9gjj5N06DMagPCic0CQ-1", "From": "David Marchand <david.marchand@redhat.com>", "To": "dev@dpdk.org", "Cc": "maxime.coquelin@redhat.com, stephen@networkplumber.org,\n chenbo.xia@intel.com, jiayu.hu@intel.com, yuanx.wang@intel.com,\n xuan.ding@intel.com", "Subject": "[RFC PATCH v3 0/8] vhost lock annotations", "Date": "Mon, 11 Apr 2022 13:00:05 +0200", "Message-Id": "<20220411110013.18624-1-david.marchand@redhat.com>", "In-Reply-To": "<20220328121758.26632-1-david.marchand@redhat.com>", "References": "<20220328121758.26632-1-david.marchand@redhat.com>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 2.85 on 10.11.54.7", "Authentication-Results": "relay.mimecast.com;\n auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david.marchand@redhat.com", "X-Mimecast-Spam-Score": "0", "X-Mimecast-Originator": "redhat.com", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain; charset=\"US-ASCII\"; x-default=true", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "vhost internals involves multiple locks to protect data access by\nmultiple threads.\n\nThis series is a try at using clang thread safety checks [1] to catch\nissues during compilation: EAL spinlock and rwlock are annotated and\nvhost code is instrumented so that clang can statically check\ncorrectness.\n\nThis is still a work in progress (some documentation and a release note\nupdate are missing).\n\nThose annotations are quite heavy to maintain because the full path of\ncode must be annotated, but I think it is worth using.\n\n\n1: https://clang.llvm.org/docs/ThreadSafetyAnalysis.html\n\nDepends-on: patch-108840 (\"vhost: fix missing virtqueue lock protection\")" }{ "id": 109579, "url": "