linux-kernel - Re: [PATCH] jump-label: initialize jump-label subsystem somewhat later

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Message-ID: <1323881470.28489.51.camel@twins>
Date:	Wed, 14 Dec 2011 17:51:10 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	David Daney <ddaney.cavm@...il.com>
Cc:	ralf@...ux-mips.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mips@...ux-mips.org,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	linux-kernel@...r.kernel.org, Jason Baron <jbaron@...hat.com>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH] jump-label: initialize jump-label subsystem somewhat
 later

On Wed, 2011-12-14 at 08:48 -0800, David Daney wrote:
> From: David Daney <david.daney@...ium.com>
> 
> commit 97ce2c88f9ad42e3c60a9beb9fca87abf3639faa breaks MIPS.
> 
> The jump-lable initialization does I-Cache flushing after modifying
> code.  On MIPS this is done by calling through the function pointer
> flush_icache_range().  This function pointer is initialized mm_init().
> 
> As things stand, we cannot be calling jump_label_init() until after
> mm_init() completes, so we move the call down to satisfy this
> constraint.

I'm fine as long as it stays before sched_init(), which it does. Jeremy
is this still early enough for you?

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