Re: [Qemu-devel] [Qemu-block] [PATCH v4 04/20] qmp: Add block-dirty-bitmap-add and block-dirty-bitmap-remove

[Stefan Hajnoczi]

On Fri, Mar 20, 2015 at 03:16:47PM -0400, John Snow wrote:
> The new command pair is added to manage a user created dirty bitmap. The
> dirty bitmap's name is mandatory and must be unique for the same device,
> but different devices can have bitmaps with the same names.
> 
> The granularity is an optional field. If it is not specified, we will
> choose a default granularity based on the cluster size if available,
> clamped to between 4K and 64K to mirror how the 'mirror' code was
> already choosing granularity. If we do not have cluster size info
> available, we choose 64K. This code has been factored out into a helper
> shared with block/mirror.
> 
> This patch also introduces the 'block_dirty_bitmap_lookup' helper,
> which takes a device name and a dirty bitmap name and validates the
> lookup, returning NULL and setting errp if there is a problem with
> either field. This helper will be re-used in future patches in this
> series.
> 
> The types added to block-core.json will be re-used in future patches
> in this series, see:
> 'qapi: Add transaction support to block-dirty-bitmap-{add, enable, disable}'
> 
> Signed-off-by: John Snow <address@hidden>
> ---
>  block.c               |  20 +++++++++
>  block/mirror.c        |  10 +----
>  blockdev.c            | 117 
> ++++++++++++++++++++++++++++++++++++++++++++++++++
>  include/block/block.h |   1 +
>  qapi/block-core.json  |  55 ++++++++++++++++++++++++
>  qmp-commands.hx       |  56 ++++++++++++++++++++++++
>  6 files changed, 250 insertions(+), 9 deletions(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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