From patchwork Fri Jul 8 17:21:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 9221541 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BBCDF6044F for ; Fri, 8 Jul 2016 17:32:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A822327F96 for ; Fri, 8 Jul 2016 17:32:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9B50927F9E; Fri, 8 Jul 2016 17:32:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A89A827F96 for ; Fri, 8 Jul 2016 17:32:23 +0000 (UTC) Received: from localhost ([::1]:46970 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLZdW-0004Xb-7E for patchwork-qemu-devel@patchwork.kernel.org; Fri, 08 Jul 2016 13:32:22 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38677) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLZTd-0001CK-AZ for qemu-devel@nongnu.org; Fri, 08 Jul 2016 13:22:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bLZTY-0008Lt-4X for qemu-devel@nongnu.org; Fri, 08 Jul 2016 13:22:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44548) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLZTP-0008Ih-5P; Fri, 08 Jul 2016 13:21:55 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CBEEA63E06; Fri, 8 Jul 2016 17:21:54 +0000 (UTC) Received: from noname.redhat.com (ovpn-116-56.ams2.redhat.com [10.36.116.56]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u68HLk2s006858; Fri, 8 Jul 2016 13:21:53 -0400 From: Kevin Wolf To: qemu-block@nongnu.org Date: Fri, 8 Jul 2016 19:21:18 +0200 Message-Id: <1467998504-15744-7-git-send-email-kwolf@redhat.com> In-Reply-To: <1467998504-15744-1-git-send-email-kwolf@redhat.com> References: <1467998504-15744-1-git-send-email-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Fri, 08 Jul 2016 17:21:54 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 06/32] mirror: Add 'job-id' parameter to 'blockdev-mirror' and 'drive-mirror' X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Alberto Garcia This patch adds a new optional 'job-id' parameter to 'blockdev-mirror' and 'drive-mirror', allowing the user to specify the ID of the block job to be created. The HMP 'drive_mirror' command remains unchanged. Signed-off-by: Alberto Garcia Reviewed-by: Kevin Wolf Reviewed-by: Max Reitz Signed-off-by: Kevin Wolf --- block/mirror.c | 15 ++++++++------- blockdev.c | 15 ++++++++------- hmp.c | 2 +- include/block/block_int.h | 6 ++++-- qapi/block-core.json | 12 +++++++++--- qmp-commands.hx | 10 +++++++--- 6 files changed, 37 insertions(+), 23 deletions(-) diff --git a/block/mirror.c b/block/mirror.c index 08d88ca..702a686 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -843,8 +843,8 @@ static const BlockJobDriver commit_active_job_driver = { .attached_aio_context = mirror_attached_aio_context, }; -static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, - const char *replaces, +static void mirror_start_job(const char *job_id, BlockDriverState *bs, + BlockDriverState *target, const char *replaces, int64_t speed, uint32_t granularity, int64_t buf_size, BlockMirrorBackingMode backing_mode, @@ -873,7 +873,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, buf_size = DEFAULT_MIRROR_BUF_SIZE; } - s = block_job_create(NULL, driver, bs, speed, cb, opaque, errp); + s = block_job_create(job_id, driver, bs, speed, cb, opaque, errp); if (!s) { return; } @@ -906,8 +906,8 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, qemu_coroutine_enter(s->common.co, s); } -void mirror_start(BlockDriverState *bs, BlockDriverState *target, - const char *replaces, +void mirror_start(const char *job_id, BlockDriverState *bs, + BlockDriverState *target, const char *replaces, int64_t speed, uint32_t granularity, int64_t buf_size, MirrorSyncMode mode, BlockMirrorBackingMode backing_mode, BlockdevOnError on_source_error, @@ -925,7 +925,7 @@ void mirror_start(BlockDriverState *bs, BlockDriverState *target, } is_none_mode = mode == MIRROR_SYNC_MODE_NONE; base = mode == MIRROR_SYNC_MODE_TOP ? backing_bs(bs) : NULL; - mirror_start_job(bs, target, replaces, + mirror_start_job(job_id, bs, target, replaces, speed, granularity, buf_size, backing_mode, on_source_error, on_target_error, unmap, cb, opaque, errp, &mirror_job_driver, is_none_mode, base); @@ -973,7 +973,8 @@ void commit_active_start(BlockDriverState *bs, BlockDriverState *base, } } - mirror_start_job(bs, base, NULL, speed, 0, 0, MIRROR_LEAVE_BACKING_CHAIN, + mirror_start_job(NULL, bs, base, NULL, speed, 0, 0, + MIRROR_LEAVE_BACKING_CHAIN, on_error, on_error, false, cb, opaque, &local_err, &commit_active_job_driver, false, base); if (local_err) { diff --git a/blockdev.c b/blockdev.c index e649521..2008690 100644 --- a/blockdev.c +++ b/blockdev.c @@ -3422,7 +3422,7 @@ void qmp_blockdev_backup(const char *device, const char *target, /* Parameter check and block job starting for drive mirroring. * Caller should hold @device and @target's aio context (must be the same). **/ -static void blockdev_mirror_common(BlockDriverState *bs, +static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs, BlockDriverState *target, bool has_replaces, const char *replaces, enum MirrorSyncMode sync, @@ -3482,15 +3482,15 @@ static void blockdev_mirror_common(BlockDriverState *bs, /* pass the node name to replace to mirror start since it's loose coupling * and will allow to check whether the node still exist at mirror completion */ - mirror_start(bs, target, + mirror_start(job_id, bs, target, has_replaces ? replaces : NULL, speed, granularity, buf_size, sync, backing_mode, on_source_error, on_target_error, unmap, block_job_cb, bs, errp); } -void qmp_drive_mirror(const char *device, const char *target, - bool has_format, const char *format, +void qmp_drive_mirror(bool has_job_id, const char *job_id, const char *device, + const char *target, bool has_format, const char *format, bool has_node_name, const char *node_name, bool has_replaces, const char *replaces, enum MirrorSyncMode sync, @@ -3634,7 +3634,7 @@ void qmp_drive_mirror(const char *device, const char *target, bdrv_set_aio_context(target_bs, aio_context); - blockdev_mirror_common(bs, target_bs, + blockdev_mirror_common(has_job_id ? job_id : NULL, bs, target_bs, has_replaces, replaces, sync, backing_mode, has_speed, speed, has_granularity, granularity, @@ -3649,7 +3649,8 @@ out: aio_context_release(aio_context); } -void qmp_blockdev_mirror(const char *device, const char *target, +void qmp_blockdev_mirror(bool has_job_id, const char *job_id, + const char *device, const char *target, bool has_replaces, const char *replaces, MirrorSyncMode sync, bool has_speed, int64_t speed, @@ -3690,7 +3691,7 @@ void qmp_blockdev_mirror(const char *device, const char *target, bdrv_set_aio_context(target_bs, aio_context); - blockdev_mirror_common(bs, target_bs, + blockdev_mirror_common(has_job_id ? job_id : NULL, bs, target_bs, has_replaces, replaces, sync, backing_mode, has_speed, speed, has_granularity, granularity, diff --git a/hmp.c b/hmp.c index 0cf5baa..edf9c7d 100644 --- a/hmp.c +++ b/hmp.c @@ -1097,7 +1097,7 @@ void hmp_drive_mirror(Monitor *mon, const QDict *qdict) mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; } - qmp_drive_mirror(device, filename, !!format, format, + qmp_drive_mirror(false, NULL, device, filename, !!format, format, false, NULL, false, NULL, full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, true, mode, false, 0, false, 0, false, 0, diff --git a/include/block/block_int.h b/include/block/block_int.h index 2a27a194..ad44fb9 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -697,6 +697,8 @@ void commit_active_start(BlockDriverState *bs, BlockDriverState *base, void *opaque, Error **errp); /* * mirror_start: + * @job_id: The id of the newly-created job, or %NULL to use the + * device name of @bs. * @bs: Block device to operate on. * @target: Block device to write to. * @replaces: Block graph node name to replace once the mirror is done. Can @@ -718,8 +720,8 @@ void commit_active_start(BlockDriverState *bs, BlockDriverState *base, * manually completed. At the end of a successful mirroring job, * @bs will be switched to read from @target. */ -void mirror_start(BlockDriverState *bs, BlockDriverState *target, - const char *replaces, +void mirror_start(const char *job_id, BlockDriverState *bs, + BlockDriverState *target, const char *replaces, int64_t speed, uint32_t granularity, int64_t buf_size, MirrorSyncMode mode, BlockMirrorBackingMode backing_mode, BlockdevOnError on_source_error, diff --git a/qapi/block-core.json b/qapi/block-core.json index ac8f5f6..18cdd5b 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1108,6 +1108,9 @@ # # Start mirroring a block device's writes to a new destination. # +# @job-id: #optional identifier for the newly-created block job. If +# omitted, the device name will be used. (Since 2.7) +# # @device: the name of the device whose writes should be mirrored. # # @target: the target of the new image. If the file exists, or if it @@ -1160,8 +1163,8 @@ # Since 1.3 ## { 'command': 'drive-mirror', - 'data': { 'device': 'str', 'target': 'str', '*format': 'str', - '*node-name': 'str', '*replaces': 'str', + 'data': { '*job-id': 'str', 'device': 'str', 'target': 'str', + '*format': 'str', '*node-name': 'str', '*replaces': 'str', 'sync': 'MirrorSyncMode', '*mode': 'NewImageMode', '*speed': 'int', '*granularity': 'uint32', '*buf-size': 'int', '*on-source-error': 'BlockdevOnError', @@ -1243,6 +1246,9 @@ # # Start mirroring a block device's writes to a new destination. # +# @job-id: #optional identifier for the newly-created block job. If +# omitted, the device name will be used. (Since 2.7) +# # @device: the name of the device whose writes should be mirrored. # # @target: the id or node-name of the block device to mirror to. This mustn't be @@ -1279,7 +1285,7 @@ # Since 2.6 ## { 'command': 'blockdev-mirror', - 'data': { 'device': 'str', 'target': 'str', + 'data': { '*job-id': 'str', 'device': 'str', 'target': 'str', '*replaces': 'str', 'sync': 'MirrorSyncMode', '*speed': 'int', '*granularity': 'uint32', diff --git a/qmp-commands.hx b/qmp-commands.hx index 6937e83..6a2ec8f 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1656,8 +1656,8 @@ EQMP { .name = "drive-mirror", - .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?," - "node-name:s?,replaces:s?," + .args_type = "job-id:s?,sync:s,device:B,target:s,speed:i?,mode:s?," + "format:s?,node-name:s?,replaces:s?," "on-source-error:s?,on-target-error:s?," "unmap:b?," "granularity:i?,buf-size:i?", @@ -1677,6 +1677,8 @@ of the source. Arguments: +- "job-id": Identifier for the newly-created block job. If omitted, + the device name will be used. (json-string, optional) - "device": device name to operate on (json-string) - "target": name of new image file (json-string) - "format": format of new image (json-string, optional) @@ -1720,7 +1722,7 @@ EQMP { .name = "blockdev-mirror", - .args_type = "sync:s,device:B,target:B,replaces:s?,speed:i?," + .args_type = "job-id:s?,sync:s,device:B,target:B,replaces:s?,speed:i?," "on-source-error:s?,on-target-error:s?," "granularity:i?,buf-size:i?", .mhandler.cmd_new = qmp_marshal_blockdev_mirror, @@ -1735,6 +1737,8 @@ specifies the target of mirror operation. Arguments: +- "job-id": Identifier for the newly-created block job. If omitted, + the device name will be used. (json-string, optional) - "device": device name to operate on (json-string) - "target": device name to mirror to (json-string) - "replaces": the block driver node name to replace when finished