From: Brian King <brking@us.ibm.com>
Date: Wed, 17 Aug 2005 21:32:18 +0000 (+1000)
Subject: [PATCH] ppc64: iommu vmerge fix
X-Git-Tag: v2.6.13-rc7~60^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac9af7cba9e642961bfdee1a1fac6060405597e5;p=pandora-kernel.git

[PATCH] ppc64: iommu vmerge fix

This 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.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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