From: Nigel Cunningham <ncunningham@cyclades.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [QN/PATCH] Why do some archs allocate stack via kmalloc, others via get_free_pages?
Date: Sat, 23 Jul 2005 00:57:04 +1000 [thread overview]
Message-ID: <1122044224.3704.0.camel@localhost> (raw)
In-Reply-To: <20050722.005025.26277081.davem@davemloft.net>
Hi.
On Fri, 2005-07-22 at 17:50, David S. Miller wrote:
> From: Nigel Cunningham <ncunningham@cyclades.com>
> Date: Fri, 22 Jul 2005 14:11:17 +1000
>
> > In making some modifications to Suspend, we've discovered that some
> > arches use kmalloc and others use get_free_pages to allocate the stack.
> > Is there a reason for the variation? If not, could the following patch
> > be considered for inclusion (tested on x86 only).
>
> Some platforms really need it to be page aligned (sparc32 sun4c needs
> to virtually map the resulting pages into a specific place, for
> example).
>
> But, for the ones that don't have this requirement, they want the
> cache coloring.
Thanks David.
Nigel
--
Evolution.
Enumerate the requirements.
Consider the interdependencies.
Calculate the probabilities.
prev parent reply other threads:[~2005-07-23 3:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-22 4:11 [QN/PATCH] Why do some archs allocate stack via kmalloc, others via get_free_pages? Nigel Cunningham
2005-07-22 7:50 ` David S. Miller
2005-07-22 14:57 ` Nigel Cunningham [this message]
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