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[PATCH v2] mm/page_alloc: remove unnecessary order check in __alloc_pages_direct_compact

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In the callee try_to_compact_pages(), the (order == 0) is checked,
so remove check in __alloc_pages_direct_compact.

Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
---
v2:
  remove the check in __alloc_pages_direct_compact - Anshuman Khandual
---
 mm/page_alloc.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b9ea618..2f5a82a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3173,9 +3173,6 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
 	struct page *page;
 	int contended_compaction;
 
-	if (!order)
-		return NULL;
-
 	current->flags |= PF_MEMALLOC;
 	*compact_result = try_to_compact_pages(gfp_mask, order, alloc_flags, ac,
 						mode, &contended_compaction);
-- 
1.9.1

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[PATCH v2] mm/page_alloc: remove unnecessary order check in __alloc_pages_direct_compact Ganesh Mahendran <opensource.ganesh@gmail.com> - 2016-06-15 11:40 +0200
  Re: [PATCH v2] mm/page_alloc: remove unnecessary order check in __alloc_pages_direct_compact Balbir Singh <bsingharora@gmail.com> - 2016-06-15 11:50 +0200
    Re: [PATCH v2] mm/page_alloc: remove unnecessary order check in  __alloc_pages_direct_compact Vlastimil Babka <vbabka@suse.cz> - 2016-06-15 12:00 +0200
    Re: [PATCH v2] mm/page_alloc: remove unnecessary order check in __alloc_pages_direct_compact Michal Nazarewicz <mina86@mina86.com> - 2016-06-15 18:50 +0200

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