linux-kernel - Re: [PATCH 2/3] sched/rt: __disable_runtime: Enqueue just unthrottled rt

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Message-ID: <20140623101213.GV19860@laptop.programming.kicks-ass.net>
Date:	Mon, 23 Jun 2014 12:12:13 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Kirill Tkhai <ktkhai@...allels.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	tkhai@...dex.ru, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Mike Galbraith <umgwanakikbuti@...il.com>,
	Konstantin Khorenko <khorenko@...allels.com>
Subject: Re: [PATCH 2/3] sched/rt: __disable_runtime: Enqueue just
 unthrottled rt_rq back on the stack

On Tue, Jun 17, 2014 at 05:24:16PM +0400, Kirill Tkhai wrote:
> 
> Make rt_rq available for pick_next_task(). Otherwise, their tasks
> stay prisoned long time till dead cpu becomes alive again.
> 
> Signed-off-by: Kirill Tkhai <ktkhai@...allels.com>
> CC: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
> CC: Mike Galbraith <umgwanakikbuti@...il.com>
> CC: Peter Zijlstra <peterz@...radead.org>
> CC: Ingo Molnar <mingo@...nel.org>
> ---
>  kernel/sched/rt.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
> index a490831..671a8b5 100644
> --- a/kernel/sched/rt.c
> +++ b/kernel/sched/rt.c
> @@ -740,6 +740,9 @@ balanced:

Depending on what you use to generate patches, can you:

QUILT_DIFF_OPTS="-F ^[[:alpha:]\$_].*[^:]\$"

or .gitconfig:

[diff "default"]
        xfuncname = "^[[:alpha:]$_].*[^:]$"

That avoids mistaking labels (like the above balanced:) for function
names.

The patch itself makes sense though.
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