Re: [Qemu-devel] [PATCH 5/9] qmp: add qmp cmd block-dirty-bitmap-copy

[Eric Blake <eblake@redhat.com>]

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On 06/04/2015 06:20 PM, John Snow wrote:
> Add the ability to copy one bitmap to a new bitmap.
> 
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---
>  blockdev.c           | 22 ++++++++++++++++++++++
>  qapi/block-core.json | 16 ++++++++++++++++
>  qmp-commands.hx      | 30 ++++++++++++++++++++++++++++++
>  3 files changed, 68 insertions(+)

[could be merged with 4]


>  
> +void qmp_block_dirty_bitmap_copy(const char *node, const char *source,
> +                                 const char *dest, Error **errp)
> +{
> +    AioContext *aio_context;
> +    BlockDriverState *bs;
> +    BdrvDirtyBitmap *bitmap;
> +
> +    if (!dest || dest[0] == '\0') {

qapi doesn't allow NULL for a mandatory option, so !dest is currently
dead code.  Of course, someday I'd like to get rid of have_FOO arguments
for pointer types, with NULL possible on optional parameters, but that's
not happening any time soon.

But it's small enough, even if you leave it in, that I don't mind giving:

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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