From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DB4C6C4167B for ; Mon, 4 Dec 2023 13:22:10 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.646936.1009621 (Exim 4.92) (envelope-from ) id 1rA8tb-0002eI-2h; Mon, 04 Dec 2023 13:21:59 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 646936.1009621; Mon, 04 Dec 2023 13:21:59 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rA8ta-0002eB-Vu; Mon, 04 Dec 2023 13:21:58 +0000 Received: by outflank-mailman (input) for mailman id 646936; Mon, 04 Dec 2023 13:21:57 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rA8tZ-0002e3-Fw for xen-devel@lists.xenproject.org; Mon, 04 Dec 2023 13:21:57 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 17dac7d9-92a8-11ee-9b0f-b553b5be7939; Mon, 04 Dec 2023 14:21:55 +0100 (CET) Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-77-ZOo2ok2OMkqoi5jbbBhWEA-1; Mon, 04 Dec 2023 08:21:49 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3E0F088D044; Mon, 4 Dec 2023 13:21:48 +0000 (UTC) Received: from redhat.com (unknown [10.39.194.237]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5098240C6EB9; Mon, 4 Dec 2023 13:21:44 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 17dac7d9-92a8-11ee-9b0f-b553b5be7939 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1701696114; 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: in-reply-to:in-reply-to:references:references; bh=Q67bgl+WrnYaCgZVyHzoiOzX46IFG9rk/6uwJuMvZTw=; b=OZ69ufndUhaZZ7MHvOLKHOk6LCY5uGcMseesEfyu+8/iOtMU2udwVKZi85Ey7o7cmpevAu GL92eWfmGLNAOrwPnCBorMlryaNrn40XyCVnJvw9sznLhqn6i0PNzz/F4CyR8A4qyS7xoW KcaB1IFzDs0UTraduWzfaIoQoN6yfbA= X-MC-Unique: ZOo2ok2OMkqoi5jbbBhWEA-1 Date: Mon, 4 Dec 2023 14:21:43 +0100 From: Kevin Wolf To: Stefan Hajnoczi Cc: qemu-devel@nongnu.org, Hanna Reitz , Paul Durrant , Paolo Bonzini , Alberto Garcia , Emanuele Giuseppe Esposito , John Snow , Eric Blake , Wen Congyang , qemu-block@nongnu.org, xen-devel@lists.xenproject.org, Coiby Xu , Eduardo Habkost , Xie Changlong , Ari Sundholm , Li Zhijian , Cleber Rosa , Juan Quintela , "Michael S. Tsirkin" , Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= , Jason Wang , Vladimir Sementsov-Ogievskiy , Zhang Chen , Peter Xu , Anthony Perard , Stefano Stabellini , Leonardo Bras , Pavel Dovgalyuk , Fam Zheng , Fabiano Rosas Subject: Re: [PATCH 04/12] graph-lock: remove AioContext locking Message-ID: References: <20231129195553.942921-1-stefanha@redhat.com> <20231129195553.942921-5-stefanha@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231129195553.942921-5-stefanha@redhat.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.2 Am 29.11.2023 um 20:55 hat Stefan Hajnoczi geschrieben: > Stop acquiring/releasing the AioContext lock in > bdrv_graph_wrlock()/bdrv_graph_unlock() since the lock no longer has any > effect. > > The distinction between bdrv_graph_wrunlock() and > bdrv_graph_wrunlock_ctx() becomes meaningless and they can be collapsed > into one function. > > Signed-off-by: Stefan Hajnoczi Reviewed-by: Kevin Wolf