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thp: use compaction for all allocation orders 

It makes no sense not to enable compaction for small order pages as we
don't want to end up with bad order 2 allocations and good and graceful
order 9 allocations.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrea Arcangeli 2011-01-13 15:47:11 -08:00 committed by Linus Torvalds
parent 5a03b051ed
commit c5a73c3d55
1 changed files with 1 additions and 1 deletions
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mm/compaction.c
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@ -578,7 +578,7 @@ unsigned long try_to_compact_pages(struct zonelist *zonelist,
* made because an assumption is made that the page allocator can satisfy
* the "cheaper" orders without taking special steps
*/
if (order <= PAGE_ALLOC_COSTLY_ORDER || !may_enter_fs || !may_perform_io)
if (!order || !may_enter_fs || !may_perform_io)
return rc;
count_vm_event(COMPACTSTALL);