From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Wed, 5 Sep 2012 12:07:59 +0000 (+0200)
Subject: s390/hugetlb: use direct TLB flushing for hugetlbfs pages
X-Git-Tag: v3.6-rc7~22^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9016083b7bc4829c4f97f37a1a3102e0f5a37692;p=pandora-kernel.git

s390/hugetlb: use direct TLB flushing for hugetlbfs pages

huge_ptep_get_and_clear() is either missing a TLB invalidation or
an mm->context.attach_count check. Since the attach_count logic was
introduced with normal ptes in mind, let's just use direct TLB
flushing for hugetlbfs pages.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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