hugetlb, rmap: always use anon_vma root pointer
This patch applies Andrea's fix given by the following patch into hugepage
rmapping code:
commit 288468c334e98aacbb7e2fb8bde6bc1adcd55e05
Author: Andrea Arcangeli <aarcange@redhat.com>
Date: Mon Aug 9 17:19:09 2010 -0700
This patch uses anon_vma->root and avoids unnecessary overwriting when
anon_vma is already set up.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 file changed