linux-kernel - Re: [PATCH v2 09/12] sched, x86: Kill saved_preempt

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Message-ID: <20151001154046.GC23943@lerouge>
Date:	Thu, 1 Oct 2015 17:40:47 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	mingo@...nel.org, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org, oleg@...hat.com,
	umgwanakikbuti@...il.com, tglx@...utronix.de, rostedt@...dmis.org
Subject: Re: [PATCH v2 09/12] sched, x86: Kill saved_preempt_count

On Wed, Sep 30, 2015 at 09:10:44AM +0200, Peter Zijlstra wrote:
> With the introduction of the context switch preempt_count invariant,
> and the demise of PREEMPT_ACTIVE, its pointless to save/restore the
> per-cpu preemption count, it must always be the same.
> 
> Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>

Reviewed-by: Frederic Weisbecker <fweisbec@...il.com>

Good news as well.
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