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From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: qemu-devel@nongnu.org, ehabkost@redhat.com, berrange@redhat.com,
	pbonzini@redhat.com, armbru@redhat.com, eblake@redhat.com,
	mreitz@redhat.com, kwolf@redhat.com, den@openvz.org,
	nshirokovskiy@virtuozzo.com, yur@virtuozzo.com,
	dim@virtuozzo.com, igor@virtuozzo.com, pkrempa@redhat.com,
	libvir-list@redhat.com, stefanha@redhat.com
Subject: Re: [PATCH RFC 0/8] blockdev-replace
Date: Thu, 2 Sep 2021 12:28:47 +0300	[thread overview]
Message-ID: <96926fb9-0d5b-a7fb-87b1-764073d46521@virtuozzo.com> (raw)
In-Reply-To: <20210802185416.50877-1-vsementsov@virtuozzo.com>

ping

02.08.2021 21:54, Vladimir Sementsov-Ogievskiy wrote:
> Hi all!
> 
> As a continuation of "Qemu block filter insertion/removal API"
> discussion, here is my proposal of blockdev-replace.
> 
> The realization allows:
> 
> - replace children of different parents: BDS, block devices, block
>    exports
> 
> - automatically replace all parents of specific BDS, excluding creating
>    loops (like bdrv_replace_node())
> 
> - do several replacements in one transaction
> 
> It's an untested draft, so you may go to patch 8, to look at QAPI
> addition.
> 
> Vladimir Sementsov-Ogievskiy (8):
>    block-backend: blk_root(): drop const specifier on return type
>    block: add BlockParentClass class
>    block: realize BlockParentClass for BlockDriverState
>    block/export: realize BlockParentClass functionality
>    qdev: improve find_device_state() to distinguish simple not found case
>    qdev: realize BlockParentClass
>    block: improve bdrv_replace_node_noperm()
>    qapi: add blockdev-replace command
> 
>   qapi/block-core.json           |  78 ++++++++++++++++
>   include/block/block-parent.h   |  32 +++++++
>   include/sysemu/block-backend.h |   2 +-
>   block.c                        | 158 ++++++++++++++++++++++++++++++++-
>   block/block-backend.c          |   2 +-
>   block/block-parent.c           |  66 ++++++++++++++
>   block/export/export.c          |  44 +++++++++
>   softmmu/qdev-monitor.c         |  90 +++++++++++++++----
>   block/meson.build              |   1 +
>   9 files changed, 453 insertions(+), 20 deletions(-)
>   create mode 100644 include/block/block-parent.h
>   create mode 100644 block/block-parent.c
> 


-- 
Best regards,
Vladimir


      parent reply	other threads:[~2021-09-02  9:30 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02 18:54 [PATCH RFC 0/8] blockdev-replace Vladimir Sementsov-Ogievskiy
2021-08-02 18:54 ` [PATCH 1/8] block-backend: blk_root(): drop const specifier on return type Vladimir Sementsov-Ogievskiy
2021-08-02 18:54 ` [PATCH 2/8] block: add BlockParentClass class Vladimir Sementsov-Ogievskiy
2021-09-16  8:34   ` Markus Armbruster
2021-09-16 10:12     ` Vladimir Sementsov-Ogievskiy
2021-09-20  5:28   ` Markus Armbruster
2021-08-02 18:54 ` [PATCH 3/8] block: realize BlockParentClass for BlockDriverState Vladimir Sementsov-Ogievskiy
2021-08-02 18:54 ` [PATCH 4/8] block/export: realize BlockParentClass functionality Vladimir Sementsov-Ogievskiy
2021-08-02 18:54 ` [PATCH 5/8] qdev: improve find_device_state() to distinguish simple not found case Vladimir Sementsov-Ogievskiy
2021-09-16 10:48   ` Markus Armbruster
2021-09-16 12:54     ` Vladimir Sementsov-Ogievskiy
2021-08-02 18:54 ` [PATCH 6/8] qdev: realize BlockParentClass Vladimir Sementsov-Ogievskiy
2021-09-20  6:08   ` Markus Armbruster
2021-08-02 18:54 ` [PATCH 7/8] block: improve bdrv_replace_node_noperm() Vladimir Sementsov-Ogievskiy
2021-08-02 18:54 ` [PATCH 8/8] qapi: add blockdev-replace command Vladimir Sementsov-Ogievskiy
2021-09-20  6:44   ` Markus Armbruster
2021-09-20 10:02     ` Vladimir Sementsov-Ogievskiy
2021-09-23 10:09       ` Markus Armbruster
2021-09-23 11:54         ` Vladimir Sementsov-Ogievskiy
2021-09-20 11:25   ` Vladimir Sementsov-Ogievskiy
2021-09-02  9:28 ` Vladimir Sementsov-Ogievskiy [this message]

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