From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58346) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fCP5p-0001vF-P9 for qemu-devel@nongnu.org; Sat, 28 Apr 2018 08:36:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fCP5m-0003tM-Vg for qemu-devel@nongnu.org; Sat, 28 Apr 2018 08:36:45 -0400 Received: from mail.ispras.ru ([83.149.199.45]:55850) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fCP5m-0003sh-My for qemu-devel@nongnu.org; Sat, 28 Apr 2018 08:36:42 -0400 From: Pavel Dovgalyuk Date: Sat, 28 Apr 2018 15:36:34 +0300 Message-ID: <20180428123634.12445.90565.stgit@pasha-VirtualBox> In-Reply-To: <20180428123627.12445.9923.stgit@pasha-VirtualBox> References: <20180428123627.12445.9923.stgit@pasha-VirtualBox> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [RFC PATCH v2 01/19] block: implement bdrv_snapshot_goto for blkreplay List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, peter.maydell@linaro.org, war2jordan@live.com, crosthwaite.peter@gmail.com, boost.lists@gmail.com, quintela@redhat.com, ciro.santilli@gmail.com, jasowang@redhat.com, mst@redhat.com, zuban32s@gmail.com, armbru@redhat.com, maria.klimushenkova@ispras.ru, dovgaluk@ispras.ru, kraxel@redhat.com, pavel.dovgaluk@ispras.ru, thomas.dullien@googlemail.com, pbonzini@redhat.com, mreitz@redhat.com, alex.bennee@linaro.org, dgilbert@redhat.com, rth@twiddle.net From: Pavel Dovgalyuk This patch enables making snapshots with blkreplay used in block devices. This function is required to make bdrv_snapshot_goto without calling .bdrv_open which is not implemented. Signed-off-by: Pavel Dovgalyuk --- block/blkreplay.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/block/blkreplay.c b/block/blkreplay.c index fe5a9b4..ec0aa82 100755 --- a/block/blkreplay.c +++ b/block/blkreplay.c @@ -127,6 +127,12 @@ static int coroutine_fn blkreplay_co_flush(BlockDriverState *bs) return ret; } +static int blkreplay_snapshot_goto(BlockDriverState *bs, + const char *snapshot_id) +{ + return bdrv_snapshot_goto(bs->file->bs, snapshot_id, NULL); +} + static BlockDriver bdrv_blkreplay = { .format_name = "blkreplay", .instance_size = 0, @@ -142,6 +148,8 @@ static BlockDriver bdrv_blkreplay = { .bdrv_co_pwrite_zeroes = blkreplay_co_pwrite_zeroes, .bdrv_co_pdiscard = blkreplay_co_pdiscard, .bdrv_co_flush = blkreplay_co_flush, + + .bdrv_snapshot_goto = blkreplay_snapshot_goto, }; static void bdrv_blkreplay_init(void)