linux-kernel - Re: [patch 2/2] x86, fpu: lazy allocation of FPU area

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Message-ID: <20080304014306.GC28006@linux-os.sc.intel.com>
Date:	Mon, 3 Mar 2008 17:43:06 -0800
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>, mingo@...e.hu,
	hpa@...or.com, tglx@...utronix.de, andi@...stfloor.org,
	linux-kernel@...r.kernel.org,
	Arjan van de Ven <arjan@...ux.intel.com>
Subject: Re: [patch 2/2] x86, fpu: lazy allocation of FPU area - v3

On Mon, Mar 03, 2008 at 08:20:12PM -0500, Christoph Hellwig wrote:
> On Mon, Mar 03, 2008 at 03:02:46PM -0800, Suresh Siddha wrote:
> > +	/*
> > +	 * Memory allocation at the first usage of the FPU and other state.
> > +	 */
> > +	if (!tsk->thread.xstate)
> > +		tsk->thread.xstate = kmem_cache_alloc(task_xstate_cachep, GFP_KERNEL);
> 
> Please don't do over 80 char lines.

Ok.

>  Also don't we need some kind of error handling here?

Currently it uses SLAB_PANIC.

thanks,
suresh
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