linux-kernel - Re: [PATCH] lib: remove prio

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Message-ID: <20140922113133.GB2832@worktop.localdomain>
Date:	Mon, 22 Sep 2014 13:31:33 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Ingo Molnar <mingo@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	Francesco Fusco <ffusco@...hat.com>,
	Greg Thelen <gthelen@...gle.com>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Randy Dunlap <rdunlap@...radead.org>,
	George Spelvin <linux@...izon.com>,
	Mark Salter <msalter@...hat.com>
Subject: Re: [PATCH] lib: remove prio_heap

On Mon, Sep 22, 2014 at 04:14:35PM +0800, Lai Jiangshan wrote:
> The prio_heap was unused since 889ed9ceaa97 ("cgroup: remove css_scan_tasks()"),
> it should be compiled-out for shrinking the binary kernel size which can be
> done via introducing CONFIG_PRIO_HEAD or via removing the code.
> 
> But we can simply recover the code from the git quickly when needed,
> so it would be better to remove it IMO.
> 

Sounds like a wonderful cleanup, that code always gave me head-aches :-)

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
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