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

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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?)

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

Cheers,

Hannes
--
Dr. Hannes Reinecke            Teamlead Storage & Networking
hare@xxxxxxx                               +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
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