From patchwork Thu Oct 1 17:23:50 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 525224 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 7D604140D78 for ; Fri, 2 Oct 2015 04:15:47 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=G4hOJbnj; dkim-atps=neutral Received: from localhost ([::1]:54963 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZhiOP-0003dR-Fg for incoming@patchwork.ozlabs.org; Thu, 01 Oct 2015 14:15:45 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38470) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zhhar-0008CO-JJ for qemu-devel@nongnu.org; Thu, 01 Oct 2015 13:24:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zhhaq-0008VN-2L for qemu-devel@nongnu.org; Thu, 01 Oct 2015 13:24:33 -0400 Received: from mail-qg0-x230.google.com ([2607:f8b0:400d:c04::230]:34527) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zhhap-0008V3-VA for qemu-devel@nongnu.org; Thu, 01 Oct 2015 13:24:32 -0400 Received: by qgez77 with SMTP id z77so73339804qge.1 for ; Thu, 01 Oct 2015 10:24:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=w7iEK5ok9UgVwikDDsLfQLiFh3jYAIdaZGsEjPQ5lQo=; b=G4hOJbnjMY1FcTShCFLeooySX0O9aXxKp+Uelo7GTNeK7psy4CBoAAd5iOtxPD5zVv x18ahr5qmDFJOoJ4OfNr7pILY3V/njYgXsuzh++/iQ4IXYH9MgOcSY79wiE/pI/1WJkb 36jbN/83euJ3zMyjGGyNrqvzC5+T8Zo0z1GxClLgnVKBD4+CR2nWsqGzsyVn0nnhS6hP xaDeBNanIDiAWXweNKYooWhHgk4rnBkYR0MunC5lmnxuRaWPyMkyL2MIlVk61esaNan8 DHdPGZ+aUZMrD+fKRczl9LF6NAHCLGeX+vwSy/R0tq8Vjm6PIO4fBjE0b3VLWPo6PbXV edpA== X-Received: by 10.140.32.200 with SMTP id h66mr13150010qgh.99.1443720271665; Thu, 01 Oct 2015 10:24:31 -0700 (PDT) Received: from localhost (bne75-h02-31-39-163-232.dsl.sta.abo.bbox.fr. [31.39.163.232]) by smtp.gmail.com with ESMTPSA id a9sm2803851qgf.13.2015.10.01.10.24.30 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Oct 2015 10:24:30 -0700 (PDT) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Date: Thu, 1 Oct 2015 19:23:50 +0200 Message-Id: <1443720248-15482-7-git-send-email-marcandre.lureau@redhat.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1443720248-15482-1-git-send-email-marcandre.lureau@redhat.com> References: <1443720248-15482-1-git-send-email-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400d:c04::230 Cc: haifeng.lin@huawei.com, mst@redhat.com, thibaut.collet@6wind.com, jasowang@redhat.com, pbonzini@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [Qemu-devel] [PATCH v7 06/24] vhost: document log resizing X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 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-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau Signed-off-by: Marc-André Lureau --- hw/virtio/vhost.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index c0ed5b2..67e09fe 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -334,6 +334,8 @@ static inline void vhost_dev_log_resize(struct vhost_dev* dev, uint64_t size) uint64_t log_base = (uintptr_t)log->log; int r; + /* inform backend of log switching, this must be done before + releasing the current log, to ensure no logging is lost */ r = dev->vhost_ops->vhost_call(dev, VHOST_SET_LOG_BASE, &log_base); assert(r >= 0); vhost_log_put(dev, true);