Re: [Qemu-block] [PATCH 2/4] nbd/server: add nbd_meta_single_query helper

[Eric Blake]

On 03/21/2018 07:19 AM, Vladimir Sementsov-Ogievskiy wrote:
> The helper will be reused for bitmaps namespace.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> ---
>   nbd/server.c | 41 ++++++++++++++++++++++++++++-------------
>   1 file changed, 28 insertions(+), 13 deletions(-)

> +/* Read len bytes and check matching to the pattern.
> + * @match is set to true on empty query for _LIST_ and for query matching the
> + * @pattern. @match is never set to false.

How about:

Read @len bytes, and set @match to true if they match @pattern, or if 
@len is 0 and the client is performing _LIST_.  @match is never set to 
false.

At any rate, the refactoring is sane; and comment touchups are trivial, so

Reviewed-by: Eric Blake <address@hidden>

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org