tree 4dad891c302587fdc7b099b18e05d7dbc5526c64
parent 64cc6ae001d70bc59e5f854e6b5678f59110df16
author Andrea Arcangeli <aarcange@redhat.com> 1294962403 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1294968760 -0800

thp: pte alloc trans splitting

pte alloc routines must wait for split_huge_page if the pmd is not present
and not null (i.e.  pmd_trans_splitting).  The additional branches are
optimized away at compile time by pmd_trans_splitting if the config option
is off.  However we must pass the vma down in order to know the anon_vma
lock to wait for.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>