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From: "Denis V. Lunev" <den@openvz.org>
Message-ID: <578CF7AB.8090308@openvz.org>
Date: Mon, 18 Jul 2016 18:37:15 +0300
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Subject: Re: [Qemu-devel] [PATCH v3 0/8] drive-mirror improvements
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To: qemu-block@nongnu.org, qemu-devel@nongnu.org
Cc: Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <famz@redhat.com>, Kevin
	Wolf <kwolf@redhat.com>, Max Reitz <mreitz@redhat.com>, Jeff Cody <jcody@redhat.com>, Eric Blake <eblake@redhat.com>

On 07/14/2016 04:33 PM, Denis V. Lunev wrote:
> This patchset contains patches dealing with known-to-be-zero areas in drive
> mirror from [PATCH 0/9] major rework of drive-mirror patchset.
>
> Changes from v2:
> - added mirror_throttle helper (patch 3) to address Eric' comment about
>    last_time_ns
> - comment tweaks (thank you, Eric)
> - marked mirror_dirty_init as couroutine_fn
>
> Changes from v1:
> - only patches dealing with zeroes remains
> - ported to current HEAD
> - fixed issue with dirty-bitmap, int length is changed with int64
> - fixed sectors_in_flight usage
> - patch 6 is reworked taken into account bugs found in active mirror
> - fixed patch 7
> - direct checking of .bdrv_co_write_zeroes is replaced with
>    bdrv_can_write_zeroes_with_unmap
>    - added fixes for bdrv_can_write_zeroes_with_unmap
>
> Signed-off-by: Denis V. Lunev <den@openvz.org>
> CC: Stefan Hajnoczi <stefanha@redhat.com>
> CC: Fam Zheng <famz@redhat.com>
> CC: Kevin Wolf <kwolf@redhat.com>
> CC: Max Reitz <mreitz@redhat.com>
> CC: Jeff Cody <jcody@redhat.com>
> CC: Eric Blake <eblake@redhat.com>
>
> Denis V. Lunev (8):
>    dirty-bitmap: operate with int64_t amount
>    mirror: make sectors_in_flight int64_t
>    mirror: create mirror_throttle helper
>    mirror: create mirror_dirty_init helper for mirror_run
>    block: remove extra condition in bdrv_can_write_zeroes_with_unmap
>    mirror: optimize dirty bitmap filling in mirror_run a bit
>    mirror: efficiently zero out target
>    mirror: improve performance of mirroring of empty disk
>
>   block.c                      |   2 +-
>   block/dirty-bitmap.c         |   6 +-
>   block/mirror.c               | 145 +++++++++++++++++++++++++++++--------------
>   include/block/block_int.h    |   2 +-
>   include/block/dirty-bitmap.h |   4 +-
>   5 files changed, 106 insertions(+), 53 deletions(-)
>
ping