Re: [Intel-IOMMU 02/10] Library routine for pre-allocat pool handling

From: Christoph Lameter
Date: Mon Jun 11 2007 - 21:30:54 EST

On Mon, 11 Jun 2007, Arjan van de Ven wrote:

> the problem with that is that if anything downstream from the iommu layer ALSO
> needs memory, we've now eaten up the last free page and things go splat.

Hmmm... We need something like a reservation system right? Higher levels
in a atomic context could register their future needs. Then we can avoid
overallocating in the iommu layer.

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