From: Joerg Roedel <jroedel@suse.de>
Date: Tue, 8 Jul 2014 13:15:07 +0000 (+0200)
Subject: iommu/amd: Don't hold a reference to mm_struct
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~158^2^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0aac63b873b354c1a16bef03563cbc3941ce7ad;p=pandora-kernel.git

iommu/amd: Don't hold a reference to mm_struct

With mmu_notifiers we don't need to hold a reference to the
mm_struct during the time the pasid is bound to a device. We
can rely on the .mn_release call back to inform us when the
mm_struct goes away.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Oded Gabbay <Oded.Gabbay@amd.com>
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