linux-kernel - Re: [PATCH v6 5/7] psi: track changed states

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Message-ID: <20190320210115.GD19382@cmpxchg.org>
Date:   Wed, 20 Mar 2019 17:01:15 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Suren Baghdasaryan <surenb@...gle.com>
Cc:     gregkh@...uxfoundation.org, tj@...nel.org, lizefan@...wei.com,
        axboe@...nel.dk, dennis@...nel.org, dennisszhou@...il.com,
        mingo@...hat.com, peterz@...radead.org, akpm@...ux-foundation.org,
        corbet@....net, cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...roid.com
Subject: Re: [PATCH v6 5/7] psi: track changed states

On Tue, Mar 19, 2019 at 04:56:17PM -0700, Suren Baghdasaryan wrote:
> Introduce changed_states parameter into collect_percpu_times to track
> the states changed since the last update.
> 
> Signed-off-by: Suren Baghdasaryan <surenb@...gle.com>

Acked-by: Johannes Weiner <hannes@...xchg.org>

This will be needed to detect whether polled states activated in the
monitor patch.