From patchwork Tue Jul 19 09:56:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 1657918 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=hrLygoho; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4LnF365PSSz9sFr for ; Tue, 19 Jul 2022 20:10:57 +1000 (AEST) Received: from localhost ([::1]:49550 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oDkBp-00052R-PU for incoming@patchwork.ozlabs.org; Tue, 19 Jul 2022 06:10:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50132) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oDjyP-00089X-OJ for qemu-devel@nongnu.org; Tue, 19 Jul 2022 05:57:01 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:51213) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oDjyO-00055O-Bt for qemu-devel@nongnu.org; Tue, 19 Jul 2022 05:57:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1658224619; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pYzwUSJhFbQty0HVMHgdAJGcmPXpX3YLF4SWmZGpIh8=; b=hrLygohovA+0vkQuN43p9MhnaHOwwodu1kAX0cf4YvnKl+e+CdsWt/V38/Zz5melGmVSJo ZAzJtKZDWsgreph6yBISMSGBfQ7c+H/IRkkdC0VscuUIHnh+hdqkbEcZw76j/94zI8Z1Yj 8tQ5ZhG3tn7EEJafE9/5h9CVZZqnB18= 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-472-zfqMljV_MLeAPEuFmLd9QA-1; Tue, 19 Jul 2022 05:56:50 -0400 X-MC-Unique: zfqMljV_MLeAPEuFmLd9QA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 57E6385A586; Tue, 19 Jul 2022 09:56:50 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.113]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8117D90A00; Tue, 19 Jul 2022 09:56:47 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi , Gautam Dawar , Liuxiangdong , Paolo Bonzini , Markus Armbruster , Jason Wang , Cornelia Huck , Parav Pandit , Eric Blake , "Michael S. Tsirkin" , Laurent Vivier , Zhu Lingshan , Eli Cohen , Cindy Lu , "Gonglei (Arei)" , Stefano Garzarella , Harpreet Singh Anand Subject: [PATCH v5 05/20] vhost: Reorder vhost_svq_kick Date: Tue, 19 Jul 2022 11:56:14 +0200 Message-Id: <20220719095629.3031338-6-eperezma@redhat.com> In-Reply-To: <20220719095629.3031338-1-eperezma@redhat.com> References: <20220719095629.3031338-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Future code needs to call it from vhost_svq_add. No functional change intended. Signed-off-by: Eugenio Pérez --- hw/virtio/vhost-shadow-virtqueue.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-virtqueue.c index 560d07ab36..043a185b96 100644 --- a/hw/virtio/vhost-shadow-virtqueue.c +++ b/hw/virtio/vhost-shadow-virtqueue.c @@ -215,6 +215,20 @@ static bool vhost_svq_add_split(VhostShadowVirtqueue *svq, return true; } +static void vhost_svq_kick(VhostShadowVirtqueue *svq) +{ + /* + * We need to expose the available array entries before checking the used + * flags + */ + smp_mb(); + if (svq->vring.used->flags & VRING_USED_F_NO_NOTIFY) { + return; + } + + event_notifier_set(&svq->hdev_kick); +} + /** * Add an element to a SVQ. * @@ -235,20 +249,6 @@ static bool vhost_svq_add(VhostShadowVirtqueue *svq, VirtQueueElement *elem) return true; } -static void vhost_svq_kick(VhostShadowVirtqueue *svq) -{ - /* - * We need to expose the available array entries before checking the used - * flags - */ - smp_mb(); - if (svq->vring.used->flags & VRING_USED_F_NO_NOTIFY) { - return; - } - - event_notifier_set(&svq->hdev_kick); -} - /** * Forward available buffers. *