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Re: [Qemu-block] [PATCH v5 00/21] blockjobs: add explicit job management

From: Kevin Wolf
Subject: Re: [Qemu-block] [PATCH v5 00/21] blockjobs: add explicit job management
Date: Mon, 12 Mar 2018 17:23:19 +0100
User-agent: Mutt/1.9.1 (2017-09-22)

Am 10.03.2018 um 09:27 hat John Snow geschrieben:
> This series seeks to address two distinct but closely related issues
> concerning the job management API.
> (1) For jobs that complete when a monitor is not attached and receiving
>     events or notifications, there's no way to discern the job's final
>     return code. Jobs must remain in the query list until dismissed
>     for reliable management.
> (2) Jobs that change the block graph structure at an indeterminate point
>     after the job starts compete with the management layer that relies
>     on that graph structure to issue meaningful commands.
>     This structure should change only at the behest of the management
>     API, and not asynchronously at unknown points in time. Before a job
>     issues such changes, it must rely on explicit and synchronous
>     confirmation from the management API.
> These changes are implemented by formalizing a State Transition Machine
> for the BlockJob subsystem.

Thanks, applied to the block branch.


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