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Date: Mon, 8 Aug 2016 14:20:14 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Dave Anderson <anderson@redhat.com>, Ingo Molnar <mingo@kernel.org>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Wang Shu <shuwang@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] introduce for_each_process_thread_{break,continue}()
 helpers
Message-ID: <20160808122014.GE6879@twins.programming.kicks-ass.net>
References: <20160725162332.GA23935@redhat.com>
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 <20160803202609.GA11419@redhat.com>
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On Wed, Aug 03, 2016 at 10:26:09PM +0200, Oleg Nesterov wrote:
> Not sure. I'd like to do something simple for the start. We need to make
> show_state_filter() "preemptible" in any case. And even killable, I think.
> Not only it can trivially trigger the soft-lockups (at least), it can simply
> never finish.

Yeah, no objection raelly. Just make sure to put a comment explaining
the limitation/issues with whatever you descide to go for.