Re: [PATCH 01/14] dm-zoned: add 'status' and 'message' callbacks

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On Fri, May 08 2020 at  2:25pm -0400,
Hannes Reinecke <hare@xxxxxxx> wrote:

> On 5/8/20 6:29 PM, Mike Snitzer wrote:
> >On Fri, May 08 2020 at  5:03am -0400,
> >Hannes Reinecke <hare@xxxxxxx> wrote:
> >
> >>Add callbacks to supply information for 'dmsetup status'
> >>and 'dmsetup info', and implement the message 'reclaim'
> >>to start the reclaim worker.
> >
> >Same feedback from before:
> >https://www.redhat.com/archives/dm-devel/2020-March/msg00189.html
> >
> >Who/What will use the 'reclaim' message?  Shouldn't it be documented?
> >Think the dmz_status changes should be split out from this reclaim
> >message?
> >
> 'reclaim' means that dm-zoned should start moving zones from the
> random zones to the sequential zones to free up more random zones.
> There's a threshold after which it'll start automatically, but this
> allows you to start reclaim even if the threshold isn't reached.
> You might be right, it should be documented.
> (Where? In the code?)

Documentation/admin-guide/device-mapper/dm-zoned.rst

Anything else worthy of sharing with others about v2 metadata format
would also be wise to document as part of those changes,

> As for splitting things off; yeah, I could; maybe I should if the
> 'reclaim' message turns out to be controversial...

Not controversial per se, but its disjoint from the rest of this series.
So best to split it out I think.

Thanks,
Mike

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