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Re: [PATCH 0/4] active-mirror: support unaligned guest operations
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
Re: [PATCH 0/4] active-mirror: support unaligned guest operations |
Date: |
Wed, 2 Oct 2019 09:53:16 +0000 |
ping
12.09.2019 18:13, Vladimir Sementsov-Ogievskiy wrote:
> Commit 9adc1cb49af8d fixed a bug about unaligned (to dirty bitmap
> granularity) guest writes (and discards) by simply requesting
> corresponding alignment on mirror-top filter. However forcing large
> alignment obviously decreases performance of unaligned requests.
>
> So it's time for a new solution which is in 03. And 04 reverts
> 9adc1cb49af8d.
>
> Vladimir Sementsov-Ogievskiy (4):
> block/mirror: simplify do_sync_target_write
> block/block-backend: add blk_co_pwritev_part
> block/mirror: support unaligned write in active mirror
> Revert "mirror: Only mirror granularity-aligned chunks"
>
> include/sysemu/block-backend.h | 4 +
> block/block-backend.c | 17 +++-
> block/mirror.c | 153 +++++++++++++--------------------
> 3 files changed, 78 insertions(+), 96 deletions(-)
>
--
Best regards,
Vladimir
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