From patchwork Fri Jul 29 04:49:42 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Devin Nakamura X-Patchwork-Id: 107351 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7BE90B6F68 for ; Fri, 29 Jul 2011 15:54:25 +1000 (EST) Received: from localhost ([::1]:37001 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmf2p-0004Kw-Tu for incoming@patchwork.ozlabs.org; Fri, 29 Jul 2011 00:51:31 -0400 Received: from eggs.gnu.org ([140.186.70.92]:41380) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmf1s-00023D-OC for qemu-devel@nongnu.org; Fri, 29 Jul 2011 00:50:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qmf1r-0000RD-T7 for qemu-devel@nongnu.org; Fri, 29 Jul 2011 00:50:32 -0400 Received: from mail-iy0-f173.google.com ([209.85.210.173]:46817) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmf1r-0000NN-Ma for qemu-devel@nongnu.org; Fri, 29 Jul 2011 00:50:31 -0400 Received: by mail-iy0-f173.google.com with SMTP id 39so4186308iyb.4 for ; Thu, 28 Jul 2011 21:50:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=rTD4QLHPgb+QBL8d67pG1vVczMtgQo9Vo74pvwXzXKs=; b=XCE6/YHOnpBEeA7kFAEl9VF3QcmNhCUie8YIZPx5vcJzptJChyvy07boWjoBk/+l6q pYcleNJC2b83tz1ifl6KUMGD01Xbpw+jOcs2WBg6+d+30anqHTEjgPUZimEYHnn3GYlE X56kOHfgTnbyUeyyiKduwR+dSs4r0+CBNDjig= Received: by 10.231.69.136 with SMTP id z8mr593898ibi.21.1311915031328; Thu, 28 Jul 2011 21:50:31 -0700 (PDT) Received: from localhost.localdomain (d72-39-252-38.home1.cgocable.net [72.39.252.38]) by mx.google.com with ESMTPS id v16sm1109424ibf.25.2011.07.28.21.50.28 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 28 Jul 2011 21:50:30 -0700 (PDT) From: Devin Nakamura To: qemu-devel@nongnu.org Date: Fri, 29 Jul 2011 00:49:42 -0400 Message-Id: <1311914994-20482-13-git-send-email-devin122@gmail.com> X-Mailer: git-send-email 1.7.6.rc1 In-Reply-To: <1311914994-20482-1-git-send-email-devin122@gmail.com> References: <1311914994-20482-1-git-send-email-devin122@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.210.173 Cc: kwolf@redhat.com, Devin Nakamura Subject: [Qemu-devel] [RFC 12/24] qed: add bdrv_qed_copy_header() 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 Signed-off-by: Devin Nakamura --- block/qed.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/block/qed.c b/block/qed.c index b05224a..556512b 100644 --- a/block/qed.c +++ b/block/qed.c @@ -1579,6 +1579,21 @@ static int bdrv_qed_map(BlockDriverState *bs, uint64_t guest_offset, return 0; } +static int bdrv_qed_copy_header(BlockDriverState *bs) +{ + BlockDriverState *backup; + uint8_t buffer[512]; + /*TODO: change filename*/ + bdrv_create_file("headerbackup.temp", NULL); + bdrv_file_open(&backup, "headerbackup.temp", BDRV_O_RDWR); + bdrv_read(bs->file, 0, buffer, 1); /*TODO: check return code*/ + bdrv_write(backup, 0, buffer, 1); /*TODO: check return code*/ + bdrv_close(backup); + + qed_write_header_sync(bs->opaque); + return 0; +} + static QEMUOptionParameter qed_create_options[] = { { .name = BLOCK_OPT_SIZE, @@ -1628,6 +1643,7 @@ static BlockDriver bdrv_qed = { .bdrv_open_conversion_target = bdrv_qed_open_conversion_target, .bdrv_get_mapping = bdrv_qed_get_mapping, .bdrv_map = bdrv_qed_map, + .bdrv_copy_header = bdrv_qed_copy_header, }; static void bdrv_qed_init(void)