[PATCH 1/1] ppc64: iommu vmerge fix

[Benjamin Herrenschmidt]

On Wed, 2005-08-17 at 15:44 -0500, brking at us.ibm.com wrote:
> The patch below fixes a bug in the PPC64 iommu vmerge code
> which results in the potential for iommu_unmap_sg to go off
> unmapping more than it should. This was found on a test system
> which resulted in PCI bus errors due to PCI memory being
> unmapped while DMAs were still in progress.

Nice catch !!!

I sent it to Andrew/Linus.

Ben.