From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Wed, 3 Sep 2014 19:23:13 +0000 (+0200)
Subject: KVM: s390/cmm: Fix prefix handling for diag 10 balloon
X-Git-Tag: fixes-for-v3.18-merge-window~23^2~39^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f7a960affc6e5a33e8c7fcef065affc4f0461041;p=pandora-kernel.git

KVM: s390/cmm: Fix prefix handling for diag 10 balloon

The old handling of prefix pages was broken in the diag10 ballooner.
We now rely on gmap_discard to check for start > end and do a
slow path if the prefix swap pages are affected:
1. discard the pages from start to prefix
2. discard the absolute 0 pages
3. discard the pages after prefix swap to end

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
---

Reading git-diff-tree failed