Re: [Qemu-devel] [PATCH v11 05/10] block: treat BDRV_REQ_ALLOCATE as serialising

[Alberto Garcia]

On Tue 18 Dec 2018 08:57:38 AM CET, Anton Nefedov wrote:
> The idea is that ALLOCATE requests may overlap with other requests.
> Reuse the existing block layer infrastructure for serialising requests.
> Use the following approach:
>   - mark ALLOCATE also SERIALISING, so subsequent requests to the area wait
>   - ALLOCATE request itself must never wait if another request is in flight
>     already. Return EAGAIN, let the caller reconsider.
>
> Signed-off-by: Anton Nefedov <address@hidden>

Reviewed-by: Alberto Garcia <address@hidden>

Berto