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.gnu.org (lists.gnu.org [209.51.188.17]) (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 365F9C001DC for ; Thu, 20 Jul 2023 18:15:33 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qMYB9-0004C1-B9; Thu, 20 Jul 2023 14:15:07 -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 1qMYB6-0004An-4N for qemu-devel@nongnu.org; Thu, 20 Jul 2023 14:15:04 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qMYB4-00034L-OZ for qemu-devel@nongnu.org; Thu, 20 Jul 2023 14:15:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689876902; 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=6aji4AUo/q3xcVp5i8vFfPFEaMhEyNTec2z203O2Wh8=; b=IOJqlBW01r2MEkQxNgAkbgWEarErsi45x6KZtW/LsHZfazgVRGwQ47AZv15n77fFpo4ljf StsTpdtYyHw6RJw/OwtyylM0LmnsHhfd1jBm5uH+2ggaF/EqrKDKZLPGB8rFA6ydDAImaE XIyoHYTjTXRiMxhWLg0OK6feu8K1yjA= 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-138-mrhjCRWMOdeiNFrB4Pw43w-1; Thu, 20 Jul 2023 14:14:56 -0400 X-MC-Unique: mrhjCRWMOdeiNFrB4Pw43w-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 0A2CD858EED; Thu, 20 Jul 2023 18:14:56 +0000 (UTC) Received: from localhost (unknown [10.39.194.253]) by smtp.corp.redhat.com (Postfix) with ESMTP id 63280C57969; Thu, 20 Jul 2023 18:14:55 +0000 (UTC) Date: Thu, 20 Jul 2023 14:14:53 -0400 From: Stefan Hajnoczi To: Mattias Nissler Cc: qemu-devel@nongnu.org, Elena Ufimtseva , Jagannathan Raman , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Paolo Bonzini , Peter Xu , David Hildenbrand , john.levon@nutanix.com Subject: Re: [PATCH 1/3] softmmu: Support concurrent bounce buffers Message-ID: <20230720181453.GC210977@fedora> References: <20230704080628.852525-1-mnissler@rivosinc.com> <20230704080628.852525-2-mnissler@rivosinc.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="G6F2Gdz6QWgAblRO" Content-Disposition: inline In-Reply-To: <20230704080628.852525-2-mnissler@rivosinc.com> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.133.124; 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, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org --G6F2Gdz6QWgAblRO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jul 04, 2023 at 01:06:25AM -0700, Mattias Nissler wrote: > + if (qatomic_dec_fetch(&bounce_buffers_in_use) == 1) { > + cpu_notify_map_clients(); > } About my comment regarding removing this API: I see the next patch does that. Stefan --G6F2Gdz6QWgAblRO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmS5eZ0ACgkQnKSrs4Gr c8jNewf/dKmABPNzhBZEA7NaT1/DFNP2kqEAy5g8VW0D3S8BHGbroDToxSQMzmXz JSdnEW7dnusFBGFc3UCtk7ZPqWCYYWg4pVb1VmnOfN1Wx0BgcVu2HvbJ5EAvlh2N Nm90Y3pVxFUb6B9ht69k6mSCAzmtEtyMyb0XWEMrrbYTcZX298hl04FFIZs0jFmd SNz49R1N9Popxjgj0OhpznRUDksVh85SEknprCey5oA6FFb3dGBxXoSEbbmLfdrr pR0Ttb1VlLMMe52P9IIbTRnU7aucmoXh8ZOgIUxyhaaeDHm0GZhhMMbnXNRbUhUh 1R3/M30ctAhCV1toavX+ZV/t4XG0nA== =aYr3 -----END PGP SIGNATURE----- --G6F2Gdz6QWgAblRO--