linux-kernel - Re: [PATCH v4 0/2] Historical Service Time Path Selector

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Date:   Mon, 11 May 2020 14:46:21 -0400
From:   Gabriel Krisman Bertazi <krisman@...labora.com>
To:     Mike Snitzer <snitzer@...hat.com>
Cc:     agk@...hat.com, dm-devel@...hat.com, linux-kernel@...r.kernel.org,
        song@...nel.org, breeves@...hat.com, mpatocka@...hat.com,
        khazhy@...gle.com, kernel@...labora.com
Subject: Re: [PATCH v4 0/2] Historical Service Time Path Selector

Mike Snitzer <snitzer@...hat.com> writes:

> OK, that concall's issue had nothing to do with needing higher
> resolution time (was about IOPs realized with requested-based vs
> bio-based).
>
> Reality is, DM won't need anything higher resolution than jiffies until
> block core's interfaces require something other than jiffies
> (e.g. generic_end_io_acct).
>
> So feel free to proceed with the conditional time fetch solution you
> were going to run with (prior to my previous mail asking you to hold
> off).
>
> Sorry for the noise.  Thanks,
> Mike

No problem, thanks for the information.  I get started on it.


-- 
Gabriel Krisman Bertazi