From: Max Reitz <mreitz@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-block@nongnu.org
Cc: kwolf@redhat.com, andrey.shinkevich@virtuozzo.com,
jsnow@redhat.com, qemu-devel@nongnu.org
Subject: Re: [PATCH v3 4/9] block/block-copy: use block_status
Date: Tue, 10 Mar 2020 15:21:44 +0100 [thread overview]
Message-ID: <e6bcd66c-12d1-2bdc-e950-410ce44ac6bf@redhat.com> (raw)
In-Reply-To: <20200306073831.7737-5-vsementsov@virtuozzo.com>
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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 <vsementsov@virtuozzo.com>
> Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
> ---
> block/block-copy.c | 73 +++++++++++++++++++++++++++++++++++++---------
> block/trace-events | 1 +
> 2 files changed, 61 insertions(+), 13 deletions(-)
Reviewed-by: Max Reitz <mreitz@redhat.com>
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next prev parent reply other threads:[~2020-03-10 14:22 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 7:38 [PATCH v3 0/9] block-copy improvements: part I Vladimir Sementsov-Ogievskiy
2020-03-06 7:38 ` [PATCH v3 1/9] job: refactor progress to separate object Vladimir Sementsov-Ogievskiy
2020-03-10 12:22 ` Andrey Shinkevich
2020-03-10 12:40 ` Max Reitz
2020-03-06 7:38 ` [PATCH v3 2/9] block/block-copy: fix progress calculation Vladimir Sementsov-Ogievskiy
2020-03-10 13:32 ` Max Reitz
2020-03-06 7:38 ` [PATCH v3 3/9] block/block-copy: specialcase first copy_range request Vladimir Sementsov-Ogievskiy
2020-03-10 13:42 ` Max Reitz
2020-03-06 7:38 ` [PATCH v3 4/9] block/block-copy: use block_status Vladimir Sementsov-Ogievskiy
2020-03-10 14:21 ` Max Reitz [this message]
2020-03-06 7:38 ` [PATCH v3 5/9] block/block-copy: factor out find_conflicting_inflight_req Vladimir Sementsov-Ogievskiy
2020-03-10 14:27 ` Max Reitz
2020-03-06 7:38 ` [PATCH v3 6/9] block/block-copy: refactor interfaces to use bytes instead of end Vladimir Sementsov-Ogievskiy
2020-03-10 14:44 ` Max Reitz
2020-03-06 7:38 ` [PATCH v3 7/9] block/block-copy: rename start to offset in interfaces Vladimir Sementsov-Ogievskiy
2020-03-10 14:50 ` Max Reitz
2020-03-10 14:55 ` Andrey Shinkevich
2020-03-10 15:14 ` Max Reitz
2020-03-10 16:15 ` Andrey Shinkevich
2020-03-06 7:38 ` [PATCH v3 8/9] block/block-copy: reduce intersecting request lock Vladimir Sementsov-Ogievskiy
2020-03-10 15:32 ` Max Reitz
2020-03-11 9:39 ` Vladimir Sementsov-Ogievskiy
2020-03-06 7:38 ` [PATCH v3 9/9] block/block-copy: hide structure definitions Vladimir Sementsov-Ogievskiy
2020-03-10 14:55 ` Andrey Shinkevich
2020-03-10 15:38 ` Max Reitz
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