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Re: [PATCH v3 4/9] block/block-copy: use block_status

From: Max Reitz
Subject: Re: [PATCH v3 4/9] block/block-copy: use block_status
Date: Tue, 10 Mar 2020 15:21:44 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

On 06.03.20 08:38, Vladimir Sementsov-Ogievskiy wrote:
> Use bdrv_block_status_above to chose effective chunk size and to handle
> zeroes effectively.
> This substitutes checking for just being allocated or not, and drops
> old code path for it. Assistance by backup job is dropped too, as
> caching block-status information is more difficult than just caching
> is-allocated information in our dirty bitmap, and backup job is not
> good place for this caching anyway.
> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> Reviewed-by: Andrey Shinkevich <address@hidden>
> ---
>  block/block-copy.c | 73 +++++++++++++++++++++++++++++++++++++---------
>  block/trace-events |  1 +
>  2 files changed, 61 insertions(+), 13 deletions(-)

Reviewed-by: Max Reitz <address@hidden>

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