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From: Max Reitz <mreitz@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
	qemu-block@nongnu.org, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, armbru@redhat.com, eblake@redhat.com,
	jsnow@redhat.com, famz@redhat.com, den@openvz.org,
	stefanha@redhat.com, pbonzini@redhat.com
Subject: Re: [Qemu-devel] [PATCH 08/22] block/dirty-bitmap: add autoload field to BdrvDirtyBitmap
Date: Fri, 7 Oct 2016 19:05:50 +0200	[thread overview]
Message-ID: <ca2d8b0a-61d2-cbf2-b0ba-64af56d64f47@redhat.com> (raw)
In-Reply-To: <1475232808-4852-9-git-send-email-vsementsov@virtuozzo.com>

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On 30.09.2016 12:53, Vladimir Sementsov-Ogievskiy wrote:
> Mirror AUTO flag from Qcow2 bitmap in BdrvDirtyBitmap. This will be
> needed in future, to save this flag back to Qcow2 for persistent
> bitmaps.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>  block/dirty-bitmap.c         | 15 +++++++++++++++
>  block/qcow2-bitmap.c         |  2 ++
>  include/block/dirty-bitmap.h |  2 ++
>  3 files changed, 19 insertions(+)
> 
> diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
> index 90af372..623e1d1 100644
> --- a/block/dirty-bitmap.c
> +++ b/block/dirty-bitmap.c
> @@ -44,6 +44,7 @@ struct BdrvDirtyBitmap {
>      int64_t size;               /* Size of the bitmap (Number of sectors) */
>      bool disabled;              /* Bitmap is read-only */
>      int active_iterators;       /* How many iterators are active */
> +    bool autoload;              /* bitmap must be autoloaded on image opening */

I think a note that this is for persistent dirty bitmaps would be
useful, e.g.:

"/* For persistent bitmaps: Bitmap must be autoloaded [...] */"

Up to you, though, so however you decide:

Reviewed-by: Max Reitz <mreitz@redhat.com>


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  reply	other threads:[~2016-10-07 17:06 UTC|newest]

Thread overview: 100+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-30 10:53 [Qemu-devel] [PATCH v7 00/22] qcow2: persistent dirty bitmaps Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 01/22] hbitmap: improve dirty iter Vladimir Sementsov-Ogievskiy
2016-10-01 13:52   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 02/22] tests: add hbitmap iter test Vladimir Sementsov-Ogievskiy
2016-10-01 14:02   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 03/22] block: fix bdrv_dirty_bitmap_granularity signature Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 04/22] block/dirty-bitmap: add deserialize_ones func Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 05/22] qcow2-bitmap: structs and consts Vladimir Sementsov-Ogievskiy
2016-10-01 14:34   ` Max Reitz
2016-10-01 14:56     ` Max Reitz
2016-10-07 13:11     ` Vladimir Sementsov-Ogievskiy
2016-10-11 11:50     ` Vladimir Sementsov-Ogievskiy
2016-10-12 18:20       ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 06/22] qcow2: add dirty bitmaps extension Vladimir Sementsov-Ogievskiy
2016-10-01 14:46   ` Max Reitz
2016-10-11 12:09     ` Vladimir Sementsov-Ogievskiy
2016-10-12 18:21       ` Max Reitz
2016-10-13 12:18         ` Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 07/22] qcow2-bitmap: introduce auto-loading bitmaps Vladimir Sementsov-Ogievskiy
2016-10-01 16:26   ` Max Reitz
2016-10-14 18:44     ` Vladimir Sementsov-Ogievskiy
2016-10-15 17:03       ` Max Reitz
2016-10-15 17:22         ` Vladimir Sementsov-Ogievskiy
2016-10-20 12:22     ` Vladimir Sementsov-Ogievskiy
2016-10-21 19:49       ` Max Reitz
2016-10-07 19:25   ` Max Reitz
2016-10-21 11:59     ` Vladimir Sementsov-Ogievskiy
2016-10-21 19:56       ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 08/22] block/dirty-bitmap: add autoload field to BdrvDirtyBitmap Vladimir Sementsov-Ogievskiy
2016-10-07 17:05   ` Max Reitz [this message]
2016-09-30 10:53 ` [Qemu-devel] [PATCH 09/22] block: introduce persistent dirty bitmaps Vladimir Sementsov-Ogievskiy
2016-10-07 17:54   ` Max Reitz
2016-10-11 13:11     ` Vladimir Sementsov-Ogievskiy
2016-10-12 18:24       ` Max Reitz
2016-10-07 19:28   ` Max Reitz
2016-10-12 11:38     ` Vladimir Sementsov-Ogievskiy
2016-10-12 12:30       ` Vladimir Sementsov-Ogievskiy
2016-10-12 18:25         ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 10/22] block/dirty-bitmap: add bdrv_dirty_bitmap_next() Vladimir Sementsov-Ogievskiy
2016-10-07 18:11   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 11/22] qcow2-bitmap: add qcow2_store_persistent_bitmaps() Vladimir Sementsov-Ogievskiy
2016-10-07 19:24   ` Max Reitz
2016-10-13 16:48     ` Vladimir Sementsov-Ogievskiy
2016-10-15 16:40       ` Max Reitz
2016-10-17 17:19     ` Vladimir Sementsov-Ogievskiy
2016-10-21 19:44       ` Max Reitz
2016-10-21 21:04         ` Eric Blake
2016-10-17 17:57   ` Vladimir Sementsov-Ogievskiy
2016-10-17 17:58     ` [Qemu-devel] DROP THIS " Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 12/22] qcow2-bitmap: add IN_USE flag Vladimir Sementsov-Ogievskiy
2016-10-07 19:44   ` Max Reitz
2016-10-21 15:34     ` Vladimir Sementsov-Ogievskiy
2016-10-21 19:58       ` Max Reitz
2016-10-24 10:32         ` Vladimir Sementsov-Ogievskiy
2016-10-24 11:35           ` Vladimir Sementsov-Ogievskiy
2016-10-24 17:08             ` Max Reitz
2016-10-24 17:18               ` Max Reitz
2016-10-25 10:53                 ` Vladimir Sementsov-Ogievskiy
2016-10-26  9:04                   ` Vladimir Sementsov-Ogievskiy
2016-10-26  9:21                     ` Vladimir Sementsov-Ogievskiy
2016-10-26 12:13                       ` Vladimir Sementsov-Ogievskiy
2016-10-26 13:02                         ` Vladimir Sementsov-Ogievskiy
2016-10-26 15:28                     ` Max Reitz
2016-11-07 16:12                   ` Vladimir Sementsov-Ogievskiy
2016-11-07 16:18                     ` Max Reitz
2016-10-24 16:54           ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 13/22] qcow2-bitmap: check constraints Vladimir Sementsov-Ogievskiy
2016-10-07 19:54   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 14/22] qcow2: delete bitmaps on truncate Vladimir Sementsov-Ogievskiy
2016-10-07 19:58   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 15/22] qcow2-bitmap: add autoclear bit Vladimir Sementsov-Ogievskiy
2016-10-07 20:11   ` Max Reitz
2016-10-24 14:25     ` Vladimir Sementsov-Ogievskiy
2016-10-24 17:21       ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 16/22] qmp: add persistent flag to block-dirty-bitmap-add Vladimir Sementsov-Ogievskiy
2016-10-07 19:52   ` Eric Blake
2016-10-24 14:44     ` Vladimir Sementsov-Ogievskiy
2016-10-10 16:08   ` Max Reitz
2016-10-24 15:12     ` Vladimir Sementsov-Ogievskiy
2016-10-24 17:30       ` Max Reitz
2016-10-25 11:05         ` Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 17/22] qmp: add autoload parameter " Vladimir Sementsov-Ogievskiy
2016-10-07 19:53   ` Eric Blake
2016-10-10 16:25   ` Max Reitz
2016-10-24 15:55     ` Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 18/22] qapi: add md5 checksum of last dirty bitmap level to query-block Vladimir Sementsov-Ogievskiy
2016-10-10 16:44   ` Max Reitz
2016-10-10 17:03     ` Max Reitz
2016-10-10 19:22       ` Eric Blake
2016-09-30 10:53 ` [Qemu-devel] [PATCH 19/22] iotests: test qcow2 persistent dirty bitmap Vladimir Sementsov-Ogievskiy
2016-10-10 17:04   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 20/22] qcow2-dirty-bitmap: refcounts Vladimir Sementsov-Ogievskiy
2016-10-10 17:59   ` Max Reitz
2016-09-30 10:53 ` [Qemu-devel] [PATCH 21/22] specs/qcow2: fix bitmap granularity qemu-specific note Vladimir Sementsov-Ogievskiy
2016-10-07 20:18   ` Eric Blake
2016-11-09 16:43     ` Vladimir Sementsov-Ogievskiy
2016-09-30 10:53 ` [Qemu-devel] [PATCH 22/22] specs/qcow2: do not use wording 'bitmap header' Vladimir Sementsov-Ogievskiy
2016-10-07 20:20   ` Eric Blake
2016-10-01 13:37 ` [Qemu-devel] [PATCH v7 00/22] qcow2: persistent dirty bitmaps Max Reitz
2016-10-13 18:11   ` John Snow

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