From patchwork Wed Aug 7 03:00:15 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wayne Xia X-Patchwork-Id: 265317 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)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id EFE8A2C00DD for ; Wed, 7 Aug 2013 13:07:01 +1000 (EST) Received: from localhost ([::1]:48856 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V6u5T-0000bD-Li for incoming@patchwork.ozlabs.org; Tue, 06 Aug 2013 23:06:59 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35096) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V6u0w-0002wU-Ia for qemu-devel@nongnu.org; Tue, 06 Aug 2013 23:02:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V6u0n-0002HE-G5 for qemu-devel@nongnu.org; Tue, 06 Aug 2013 23:02:18 -0400 Received: from e28smtp07.in.ibm.com ([122.248.162.7]:39870) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V6u0m-0002G3-SL for qemu-devel@nongnu.org; Tue, 06 Aug 2013 23:02:09 -0400 Received: from /spool/local by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 7 Aug 2013 08:23:33 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 722E5E0053 for ; Wed, 7 Aug 2013 08:32:18 +0530 (IST) Received: from d28av02.in.ibm.com (d28av02.in.ibm.com [9.184.220.64]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r7733E7s38010892 for ; Wed, 7 Aug 2013 08:33:14 +0530 Received: from d28av02.in.ibm.com (loopback [127.0.0.1]) by d28av02.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r7732235004565 for ; Wed, 7 Aug 2013 13:02:02 +1000 Received: from RH63Wenchao (wenchaox.cn.ibm.com [9.115.122.222]) by d28av02.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id r7730RCg028008; Wed, 7 Aug 2013 13:02:00 +1000 From: Wenchao Xia To: qemu-devel@nongnu.org Date: Wed, 7 Aug 2013 11:00:15 +0800 Message-Id: <1375844419-7665-5-git-send-email-xiawenc@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1375844419-7665-1-git-send-email-xiawenc@linux.vnet.ibm.com> References: <1375844419-7665-1-git-send-email-xiawenc@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13080702-8878-0000-0000-000008489B0F X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 122.248.162.7 Cc: kwolf@redhat.com, phrdina@redhat.com, famz@redhat.com, Wenchao Xia , armbru@redhat.com, lcapitulino@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, dietmar@proxmox.com Subject: [Qemu-devel] [PATCH V7 4/8] qmp: add interface blockdev-snapshot-internal-sync 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 Snapshot ID can't be specified in this interface. Signed-off-by: Wenchao Xia --- blockdev.c | 13 +++++++++++++ qapi-schema.json | 20 ++++++++++++++++++++ qmp-commands.hx | 29 +++++++++++++++++++++++++++++ 3 files changed, 62 insertions(+), 0 deletions(-) diff --git a/blockdev.c b/blockdev.c index 0d717bc..b4754ef 100644 --- a/blockdev.c +++ b/blockdev.c @@ -856,6 +856,19 @@ void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file, &snapshot, errp); } +void qmp_blockdev_snapshot_internal_sync(const char *device, + const char *name, + Error **errp) +{ + BlockdevSnapshotInternal snapshot = { + .device = (char *) device, + .name = (char *) name + }; + + blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC, + &snapshot, errp); +} + /* New and old BlockDriverState structs for group snapshots */ diff --git a/qapi-schema.json b/qapi-schema.json index 38663c5..a236cde 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1758,6 +1758,26 @@ 'data': 'BlockdevSnapshot' } ## +# @blockdev-snapshot-internal-sync +# +# Synchronously take an internal snapshot of a block device, when the format +# of the image used supports it. +# +# For the arguments, see the documentation of BlockdevSnapshotInternal. +# +# Returns: nothing on success +# If @device is not a valid block device, DeviceNotFound +# If any snapshot matching @name exists, or @name is empty, +# GenericError +# If the format of the image used does not support it, +# BlockFormatFeatureNotSupported +# +# Since 1.7 +## +{ 'command': 'blockdev-snapshot-internal-sync', + 'data': 'BlockdevSnapshotInternal' } + +## # @human-monitor-command: # # Execute a command on the human monitor and return the output. diff --git a/qmp-commands.hx b/qmp-commands.hx index 68a1611..6097283 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1098,6 +1098,35 @@ Example: EQMP { + .name = "blockdev-snapshot-internal-sync", + .args_type = "device:B,name:s", + .mhandler.cmd_new = qmp_marshal_input_blockdev_snapshot_internal_sync, + }, + +SQMP +blockdev-snapshot-internal-sync +------------------------------- + +Synchronously take an internal snapshot of a block device when the format of +image used supports it. If the name is an empty string, or a snapshot with +name already exists, the operation will fail. + +Arguments: + +- "device": device name to snapshot (json-string) +- "name": name of the new snapshot (json-string) + +Example: + +-> { "execute": "blockdev-snapshot-internal-sync", + "arguments": { "device": "ide-hd0", + "name": "snapshot0" } + } +<- { "return": {} } + +EQMP + + { .name = "drive-mirror", .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?," "on-source-error:s?,on-target-error:s?,"