tree 6e15c363298dd01dd44d5c96afd9ef36078a1247
parent 4779cb31c0ee3b355116745edca3f3e5fe865553
author Hugh Dickins <hugh.dickins@tiscali.co.uk> 1255442531 +0100
committer Andi Kleen <ak@linux.intel.com> 1255930160 +0200

HWPOISON: fix oops on ksm pages

Memory failure on a KSM page currently oopses on its NULL anon_vma in
page_lock_anon_vma(): that may not be much worse than the consequence
of ignoring it, but it is better to be consistent with how ZERO_PAGE
and hugetlb pages and other awkward cases are treated.  Just skip it.

Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andi Kleen <ak@linux.intel.com>