From: John Snow <jsnow@redhat.com>
To: Fam Zheng <famz@redhat.com>, qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
qemu-block@nongnu.org, Markus Armbruster <armbru@redhat.com>,
mreitz@redhat.com, vsementsov@parallels.com,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [RFC PATCH 09/16] qmp: Add block-dirty-bitmap-set-persistent
Date: Tue, 9 Feb 2016 17:49:43 -0500 [thread overview]
Message-ID: <56BA6D07.8050403@redhat.com> (raw)
In-Reply-To: <1453804705-7205-10-git-send-email-famz@redhat.com>
On 01/26/2016 05:38 AM, Fam Zheng wrote:
> Signed-off-by: Fam Zheng <famz@redhat.com>
> ---
> blockdev.c | 20 ++++++++++++++++++++
> qapi/block-core.json | 22 ++++++++++++++++++++++
> qmp-commands.hx | 31 +++++++++++++++++++++++++++++++
> 3 files changed, 73 insertions(+)
>
> diff --git a/blockdev.c b/blockdev.c
> index 08236f2..a9d6617 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -2699,6 +2699,9 @@ void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
> name);
> goto out;
> }
> + if (bdrv_dirty_bitmap_set_persistent(bs, bitmap, false, false, errp)) {
> + goto out;
> + }
Does this belong in Patch #6?
> bdrv_dirty_bitmap_make_anon(bitmap);
> bdrv_release_dirty_bitmap(bs, bitmap);
>
> @@ -2740,6 +2743,23 @@ void qmp_block_dirty_bitmap_clear(const char *node, const char *name,
> aio_context_release(aio_context);
> }
>
> +void qmp_block_dirty_bitmap_set_persistent(const char *node, const char *name,
> + bool persistent, Error **errp)
> +{
> + AioContext *aio_context;
> + BdrvDirtyBitmap *bitmap;
> + BlockDriverState *bs;
> +
> + bitmap = block_dirty_bitmap_lookup(node, name, &bs, &aio_context, errp);
> + if (!bitmap || !bs) {
> + return;
> + }
> +
> + bdrv_dirty_bitmap_set_persistent(bs, bitmap, persistent, false, errp);
> +
> + aio_context_release(aio_context);
> +}
> +
> void hmp_drive_del(Monitor *mon, const QDict *qdict)
> {
> const char *id = qdict_get_str(qdict, "id");
> diff --git a/qapi/block-core.json b/qapi/block-core.json
> index 0ac107c..52689ed 100644
> --- a/qapi/block-core.json
> +++ b/qapi/block-core.json
> @@ -1263,6 +1263,28 @@
> '*on-target-error': 'BlockdevOnError' } }
>
> ##
> +# @block-dirty-bitmap-set-persistent
> +#
> +# Update a dirty bitmap's persistent state on the device
> +#
> +# @node: name of device/node which the bitmap is tracking
> +#
> +# @name: name of the dirty bitmap
> +#
> +# @persistent: #optinal whether to make the bitmap persistent, default is false
> +#
optional :)
> +# Returns: nothing on success
> +# If @node is not a valid block device, DeviceNotFound
> +# If @name is not found, GenericError with an explanation
> +# If an error happens when setting the persistent state, GenericError
> +# with an explanation
> +#
> +# Since 2.6
> +##
> +{ 'command': 'block-dirty-bitmap-set-persistent',
> + 'data': { 'node': 'str', 'name': 'str', 'persistent': 'bool' } }
> +
> +##
> # @block_set_io_throttle:
> #
> # Change I/O throttle limits for a block drive.
> diff --git a/qmp-commands.hx b/qmp-commands.hx
> index bd4428e..e37cf09 100644
> --- a/qmp-commands.hx
> +++ b/qmp-commands.hx
> @@ -1458,6 +1458,37 @@ Example:
> EQMP
>
> {
> + .name = "block-dirty-bitmap-set-persistent",
> + .args_type = "node:B,name:s,persistent:b",
> + .mhandler.cmd_new = qmp_marshal_block_dirty_bitmap_set_persistent,
> + },
> +
> +SQMP
> +
> +block-dirty-bitmap-set-persistent
> +---------------------------------
> +Since 2.6
> +
> +Update the persistent state of a dirty bitmap. Format driver support is
> +required.
> +
TODO: Mention supported drivers, perhaps. I know as of right now that's
none, but just a reminder.
> +Arguments:
> +
> +- "node": device/node on which to update the dirty bitmap (json-string)
> +- "name": name of the dirty bitmap to update (json-string)
> +- "persistent": the state to update to. (json-bool)
> +
> +Example:
> +
> +-> { "execute": "block-dirty-bitmap-set-persistent",
> + "arguments": { "node": "drive0",
> + "name": "bitmap0",
> + "persistent": true } }
> +<- { "return": {} }
> +
> +EQMP
> +
> + {
> .name = "blockdev-snapshot-sync",
> .args_type = "device:s?,node-name:s?,snapshot-file:s,snapshot-node-name:s?,format:s?,mode:s?",
> .mhandler.cmd_new = qmp_marshal_blockdev_snapshot_sync,
>
Looks good.
next prev parent reply other threads:[~2016-02-09 22:49 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 10:38 [Qemu-devel] [RFC PATCH 00/16] Qemu Bit Map (QBM) - an overlay format for persistent dirty bitmap Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 01/16] doc: Add QBM format specification Fam Zheng
2016-01-26 17:51 ` Eric Blake
2016-02-09 0:05 ` John Snow
2016-02-23 8:35 ` Markus Armbruster
2016-02-08 23:51 ` John Snow
2016-02-17 11:48 ` Vladimir Sementsov-Ogievskiy
2016-02-17 16:30 ` Vladimir Sementsov-Ogievskiy
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 02/16] block: Set dirty before doing write Fam Zheng
2016-01-26 17:52 ` Eric Blake
2016-02-09 0:11 ` John Snow
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 03/16] block: Allow .bdrv_close callback to release dirty bitmaps Fam Zheng
2016-01-26 17:53 ` Eric Blake
2016-02-09 0:23 ` John Snow
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 04/16] block: Move filename_decompose to block.c Fam Zheng
2016-01-27 16:07 ` Eric Blake
2016-02-09 20:56 ` John Snow
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 05/16] block: Make bdrv_get_cluster_size public Fam Zheng
2016-01-27 16:08 ` Eric Blake
2016-02-09 21:06 ` John Snow
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 06/16] block: Introduce bdrv_dirty_bitmap_set_persistent Fam Zheng
2016-02-09 21:31 ` John Snow
2016-02-09 22:04 ` John Snow
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 07/16] block: Only swap non-persistent dirty bitmaps Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 08/16] qmp: Add optional parameter "persistent" in block-dirty-bitmap-add Fam Zheng
2016-02-09 22:05 ` John Snow
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 09/16] qmp: Add block-dirty-bitmap-set-persistent Fam Zheng
2016-02-09 22:49 ` John Snow [this message]
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 10/16] qbm: Implement format driver Fam Zheng
2016-02-17 13:30 ` Vladimir Sementsov-Ogievskiy
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 11/16] qapi: Add "qbm" as a generic cow " Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 12/16] iotests: Add qbm format to 041 Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 13/16] iotests: Add qbm to case 097 Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 14/16] iotests: Add qbm to applicable test cases Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 15/16] iotests: Add qbm specific test case 140 Fam Zheng
2016-01-26 10:38 ` [Qemu-devel] [RFC PATCH 16/16] iotests: Add persistent bitmap test case 141 Fam Zheng
2016-02-22 14:24 ` [Qemu-devel] [RFC PATCH 00/16] Qemu Bit Map (QBM) - an overlay format for persistent dirty bitmap Kevin Wolf
2016-02-23 3:40 ` Fam Zheng
2016-02-23 17:43 ` Kevin Wolf
2016-02-24 0:49 ` Fam Zheng
2016-02-23 9:14 ` Markus Armbruster
2016-02-23 11:28 ` Kevin Wolf
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