[PATCH 10/20] score: get rid of superfluous __GFP_REPEAT

From	Michal Hocko <mhocko@kernel.org>
Newsgroups	linux.kernel
Subject	[PATCH 10/20] score: get rid of superfluous __GFP_REPEAT
Date	2016-04-28 15:30 +0200
Message-ID	<rsUaZ-3LP-9@gated-at.bofh.it> (permalink)
References	<rsUaZ-3LP-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Michal Hocko <mhocko@suse.com>

__GFP_REPEAT has a rather weak semantic but since it has been introduced
around 2.6.12 it has been ignored for low order allocations.

pte_alloc_one{_kernel} allocate PTE_ORDER which is 0. This means that
this flag has never been actually useful here because it has always been
used only for PAGE_ALLOC_COSTLY requests.

Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
---
 arch/score/include/asm/pgalloc.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h
index 2e067657db98..49b012d78c1a 100644
--- a/arch/score/include/asm/pgalloc.h
+++ b/arch/score/include/asm/pgalloc.h
@@ -42,8 +42,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 {
 	pte_t *pte;
 
-	pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO,
-					PTE_ORDER);
+	pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_ZERO, PTE_ORDER);
 
 	return pte;
 }
@@ -53,7 +52,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 {
 	struct page *pte;
 
-	pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
+	pte = alloc_pages(GFP_KERNEL, PTE_ORDER);
 	if (!pte)
 		return NULL;
 	clear_highpage(pte);
-- 
2.8.0.rc3

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[PATCH 10/20] score: get rid of superfluous __GFP_REPEAT Michal Hocko <mhocko@kernel.org> - 2016-04-28 15:30 +0200

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