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Date: Thu, 18 Dec 2008 01:07:08 -0500 (EST)
From: Len Brown <lenb@kernel.org>
Subject: Re: acpi_os_allocate(GFP_KERNEL) (was Re: acpi_evaluate_integer broken
 by design)
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-- Len Brown, Intel Open Source Technology Center

> In fact, we should be using GFP_ATOMIC already while devices are being
> suspended, so we can switch from GFP_KERNEL to GFP_ATOMIC even before
> interrupts are enabled.

true.  it makes me wonder if tinkering with ACPI
is a bad idea -- for it will address only one user of kmalloc.