From: Joerg Roedel <joerg.roedel@amd.com>
Date: Tue, 17 Jul 2012 09:47:14 +0000 (+0200)
Subject: iommu/tegra: Don't call alloc_pdir with as->lock
X-Git-Tag: v3.6-rc1~111^2^5~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9a4f063a88297e361fd6676986cf3e39b22de72;p=pandora-kernel.git

iommu/tegra: Don't call alloc_pdir with as->lock

Instead of taking as->lock before calling alloc_pdir() and
releasing it in that function to allocate memory, just take
the lock only in the alloc_pdir function and run the loop
without any lock held. This simplifies the complicated
lock->unlock->alloc->lock->unlock sequence into
alloc->lock->unlock.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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