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Date:   Mon, 28 Jan 2019 15:01:49 -0800
From:   Tejun Heo <tj@kernel.org>
To:     Johannes Weiner <hannes@cmpxchg.org>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Suren Baghdasaryan <surenb@google.com>,
        Lai Jiangshan <jiangshanlai@gmail.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] psi: fix aggregation idle shut-off
Message-ID: <20190128230149.GW50184@devbig004.ftw2.facebook.com>
References: <20190116193501.1910-1-hannes@cmpxchg.org>
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Hello,

On Wed, Jan 16, 2019 at 02:35:01PM -0500, Johannes Weiner wrote:
> +/**
> + * wq_worker_last_func - retrieve worker's last work function
> + *
> + * Determine the last function a worker executed. This is called from
> + * the scheduler to get a worker's last known identity.

Maybe it can describe better why this is safe in this use case and
not suitable as a generic interface but other than that,

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun