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Re: [Qemu-block] [PATCH v6 06/21] hbitmap: cache array lengths
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-block] [PATCH v6 06/21] hbitmap: cache array lengths |
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Date: |
Thu, 23 Apr 2015 14:39:56 +0100 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Fri, Apr 17, 2015 at 07:49:54PM -0400, John Snow wrote:
> As a convenience: between incremental backups, bitmap migrations
> and bitmap persistence we seem to need to recalculate these a lot.
>
> Because the lengths are a little bit-twiddly, let's just solidly
> cache them and be done with it.
>
> Reviewed-by: Max Reitz <address@hidden>
> Reviewed-by: Eric Blake <address@hidden>
> Signed-off-by: John Snow <address@hidden>
> ---
> util/hbitmap.c | 4 ++++
> 1 file changed, 4 insertions(+)
Reviewed-by: Stefan Hajnoczi <address@hidden>
pgpGaneaJuKNe.pgp
Description: PGP signature
- [Qemu-block] [PATCH v6 00/21] block: transactionless incremental backup series, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 01/21] docs: incremental backup documentation, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 03/21] qmp: Ensure consistent granularity type, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 02/21] qapi: Add optional field "name" to block dirty bitmap, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 05/21] block: Introduce bdrv_dirty_bitmap_granularity(), John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 06/21] hbitmap: cache array lengths, John Snow, 2015/04/17
- Re: [Qemu-block] [PATCH v6 06/21] hbitmap: cache array lengths,
Stefan Hajnoczi <=
- [Qemu-block] [PATCH v6 04/21] qmp: Add block-dirty-bitmap-add and block-dirty-bitmap-remove, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 07/21] hbitmap: add hbitmap_merge, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 08/21] block: Add bitmap disabled status, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 09/21] block: Add bitmap successors, John Snow, 2015/04/17
- [Qemu-block] [PATCH v6 12/21] qmp: Add dirty bitmap status field in query-block, John Snow, 2015/04/17