linux-kernel - Re: [PATCH] sched/rt: Fix rq->clock_update_flags < RQCF_ACT

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Message-ID: <20180405072105.egwq2pg26np3l7pb@gmail.com>
Date:   Thu, 5 Apr 2018 09:21:05 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Davidlohr Bueso <dave@...olabs.net>, efault@....de,
        rostedt@...dmis.org, matt@...eblueprint.co.uk,
        linux-kernel@...r.kernel.org, Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [PATCH] sched/rt: Fix rq->clock_update_flags < RQCF_ACT_SKIP
 warning


* Peter Zijlstra <peterz@...radead.org> wrote:

> On Wed, Apr 04, 2018 at 09:15:39AM -0700, Davidlohr Bueso wrote:
> > On Mon, 02 Apr 2018, Davidlohr Bueso wrote:
> > 
> > > The case for the rt task throttling (which this workload also hits) can be ignored in
> > > that the skip_update call is actually bogus and quite the contrary (the request bits
> > > are removed/reverted).
> > 
> > While at it, how about this trivial patch?
> > 
> > ----8<--------------------------------------------------------
> > [PATCH 2/1] sched: Simplify helpers for rq clock update skip requests
> > 
> > By renaming the functions we can get rid of the skip parameter
> > and have better code redability. It makes zero sense to have
> > things such as:
> > 
> > rq_clock_skip_update(rq, false)
> > 
> > When the skip request is in fact not going to happen. Ever. Rename
> > things such that we end up with:
> > 
> > rq_clock_skip_update(rq)
> > rq_clock_cancel_skipupdate(rq)
> > 
> > Signed-off-by: Davidlohr Bueso <dbueso@...e.de>
> 
> Works for me :-)
> 
> Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>

I have applied both patches, thanks guys!

	Ingo