linux-kernel - Re: SCHED_DEADLINE cpudeadline.{h,c} fixup

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Date:	Wed, 18 May 2016 00:43:14 +0200
From:	Tommaso Cucinotta <tommaso.cucinotta@...up.it>
To:	luca abeni <luca.abeni@...tn.it>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...il.com>, mingo@...hat.com
Subject: Re: SCHED_DEADLINE cpudeadline.{h,c} fixup

On 17/05/2016 13:46, luca abeni wrote:
> Maybe the ... change can be split in a separate
> patch, which is a bugfix (and IMHO uncontroversial)?

Ok, the bugfix alone might look like the attached. Couldn't avoid
the little refactoring of the multiple occurrences of the same loop
up the heap into the heapify_up(), mirroring the heapify() that was
already there (renamed heapify_down() for clarity).

I'll rebase the speed-up patch on top of this, if it's a better approach.

Anyone with further comments?

Thanks again!

	T.
-- 
Tommaso Cucinotta, Computer Engineering PhD
Associate Professor at the Real-Time Systems Laboratory (ReTiS)
Scuola Superiore Sant'Anna, Pisa, Italy
http://retis.sssup.it/people/tommaso

View attachment "0001-Deadline-wrap-around-bugfix-for-the-SCHED_DEADLINE-c.patch" of type "text/x-patch" (2689 bytes)