From mboxrd@z Thu Jan 1 00:00:00 1970 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) From: Devin Nakamura Date: Fri, 29 Jul 2011 00:49:42 -0400 Message-Id: <1311914994-20482-13-git-send-email-devin122@gmail.com> In-Reply-To: <1311914994-20482-1-git-send-email-devin122@gmail.com> References: <1311914994-20482-1-git-send-email-devin122@gmail.com> Subject: [Qemu-devel] [RFC 12/24] qed: add bdrv_qed_copy_header() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, Devin Nakamura 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) -- 1.7.6.rc1