Date: Thu, 6 Aug 2015 18:14:12 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>,
        Daniel Wagner <daniel.wagner@bmw-carit.de>,
        linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org,
        bigeasy@linutronix.de, tglx@linutronix.de, paulmck@linux.vnet.ibm.com
Subject: Re: [RFC v0 0/3] Simple wait queue support
Message-ID: <20150806181412.5b474213@gandalf.local.home>
In-Reply-To: <20150806213649.GB16853@twins.programming.kicks-ass.net>
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On Thu, 6 Aug 2015 23:36:49 +0200
Peter Zijlstra <peterz@infradead.org> wrote:

> On Thu, Aug 06, 2015 at 03:31:20PM -0400, Steven Rostedt wrote:
> > > 4) poll_wait: currently it and poll_table_entry are both hard coupled
> > >    to wait_queue_head_t -- so any users of poll_wait are not eligible
> > >    for conversion to simple wait. (I just happened to notice that
> > >    recently.)  A quick grep shows ~500 poll_wait users.
> > 
> > Looks like a good candidate to test the cwait on :-)
> 
> Poll uses custom wake functions, which disqualifies them on the spot.

For cwait? That's the complex wait queue (what the current wait queues
will be called in the future).

-- Steve
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