[SRU][Wily][PATCH 0/1] x86/mm: Fix slow_virt_to_phys() for X86_PAE again

[Joseph Salisbury]

BugLink: http://bugs.launchpad.net/bugs/1549601

== SRU Justification ==
This bug is preventing 32-PAE Hyper-V guests, with 5GB memory assigned, from
loading the netvsc driver successfully and hence the synthetic network
device does not work.  This bug was introduced by commit 34437e67a and this new
patch is the fix.

Commit bf70e55 is in mainline as of: v4.5-rc6.

Commit bf70e55 is also needed in Trusty and Xenial.  However, they require a slightly 
different backport, so I will send separate SRU reqeust for each.

== Fix ==
commit bf70e5513dfea29c3682e7eb3dbb45f0723bac09
Author: Dexuan Cui <decui at microsoft.com>
Date:   Thu Feb 25 01:58:12 2016 -0800

    x86/mm: Fix slow_virt_to_phys() for X86_PAE again


== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.



Dexuan Cui (1):
  x86/mm: Fix slow_virt_to_phys() for X86_PAE again

 arch/x86/include/asm/page_types.h |  6 ++++++
 arch/x86/mm/pageattr.c            | 25 +++++++++++++++++++++----
 2 files changed, 27 insertions(+), 4 deletions(-)

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1.9.1