Re: [PATCH] Improve pci_alloc_consistent wrapper on preemptive kernels
From: Andi Kleen (ak_at_suse.de)
Date: 07/30/04
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Date: Fri, 30 Jul 2004 19:43:04 +0200 To: Jeff Garzik <jgarzik@pobox.com>
On Fri, 30 Jul 2004 13:16:28 -0400
Jeff Garzik <jgarzik@pobox.com> wrote:
>
> 1) Changing from GFP_ATOMIC to <something else> may break code
x86-64 did it for a long time and I am not aware of problems with it
(however I don't know how widespread CONFIG_PREEMPT use on x86-64 is)
> 2) Conversely from #1, I also worry why GFP_ATOMIC would be needed at
> all. I code all my drivers to require that pci_alloc_consistent() be
> called from somewhere that is allowed to sleep.
Maybe you do, but others don't.
-Andi
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- Previous message: Dimitri Sivanich: "[PATCH] Isolated sched domains for 2.6.8-rc2-mm1"
- In reply to: Jeff Garzik: "Re: [PATCH] Improve pci_alloc_consistent wrapper on preemptive kernels"
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