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Re: [Qemu-devel] [PATCH v2 08/13] block: Support meta dirty bitmap
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH v2 08/13] block: Support meta dirty bitmap |
Date: |
Tue, 26 Jan 2016 14:25:44 +0800 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, 01/22 15:05, Vladimir Sementsov-Ogievskiy wrote:
> >In my migration series I need iterators, get granularity, and
> >something like hbitmap_count for meta bitmaps. You can add them
> >here if you want, or I can add them in my series.
Okay, I can add that.
I have one more question on the interface: what dirty bitmaps are going to be
migrated? At this moment there are dirty bitmaps created by block jobs
(drive-mirror), and in-memory dirty bitmaps created for incremental backup;
later there will be persistent dirty bitmaps owned by block drivers (extended
version of qcow2, and in QBM driver I'm working on). Which of them are subject
of migration in your series?
I'm asking because I want to know whether we need to implement multiple meta
bitmaps on one block dirty bitmap.
Fam
- [Qemu-devel] [PATCH v2 05/13] block: Hide HBitmap in block dirty bitmap interface, (continued)
Re: [Qemu-devel] [PATCH v2 08/13] block: Support meta dirty bitmap, John Snow, 2016/01/25
[Qemu-devel] [PATCH v2 09/13] block: Add two dirty bitmap getters, Fam Zheng, 2016/01/20
[Qemu-devel] [PATCH v2 10/13] block: Assert that bdrv_release_dirty_bitmap succeeded, Fam Zheng, 2016/01/20
[Qemu-devel] [PATCH v2 11/13] hbitmap: serialization, Fam Zheng, 2016/01/20
[Qemu-devel] [PATCH v2 12/13] block: BdrvDirtyBitmap serialization interface, Fam Zheng, 2016/01/20