+ arc-get-rid-of-superfluous-__gfp_repeat.patch added to -mm tree

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The patch titled
     Subject: arc: get rid of superfluous __GFP_REPEAT
has been added to the -mm tree.  Its filename is
     arc-get-rid-of-superfluous-__gfp_repeat.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/arc-get-rid-of-superfluous-__gfp_repeat.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/arc-get-rid-of-superfluous-__gfp_repeat.patch

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------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxxx>
Subject: arc: get rid of superfluous __GFP_REPEAT

__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 uses __get_order_pte but this is obviously always
zero because BITS_FOR_PTE is not larger than 9 yet the page size is always
larger than 4K.  This means that this flag has never been actually useful
here because it has always been used only for PAGE_ALLOC_COSTLY requests.

Link: http://lkml.kernel.org/r/1464599699-30131-7-git-send-email-mhocko@xxxxxxxxxx
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Acked-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 arch/arc/include/asm/pgalloc.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN arch/arc/include/asm/pgalloc.h~arc-get-rid-of-superfluous-__gfp_repeat arch/arc/include/asm/pgalloc.h
--- a/arch/arc/include/asm/pgalloc.h~arc-get-rid-of-superfluous-__gfp_repeat
+++ a/arch/arc/include/asm/pgalloc.h
@@ -95,7 +95,7 @@ static inline pte_t *pte_alloc_one_kerne
 {
 	pte_t *pte;
 
-	pte = (pte_t *) __get_free_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO,
+	pte = (pte_t *) __get_free_pages(GFP_KERNEL | __GFP_ZERO,
 					 __get_order_pte());
 
 	return pte;
@@ -107,7 +107,7 @@ pte_alloc_one(struct mm_struct *mm, unsi
 	pgtable_t pte_pg;
 	struct page *page;
 
-	pte_pg = (pgtable_t)__get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte());
+	pte_pg = (pgtable_t)__get_free_pages(GFP_KERNEL, __get_order_pte());
 	if (!pte_pg)
 		return 0;
 	memzero((void *)pte_pg, PTRS_PER_PTE * sizeof(pte_t));
_

Patches currently in -mm which might be from mhocko@xxxxxxxx are

mm-oom_reaper-do-not-use-siglock-in-try_oom_reaper.patch
tree-wide-get-rid-of-__gfp_repeat-for-order-0-allocations-part-i.patch
x86-get-rid-of-superfluous-__gfp_repeat.patch
x86-efi-get-rid-of-superfluous-__gfp_repeat.patch
arm-get-rid-of-superfluous-__gfp_repeat.patch
arm64-get-rid-of-superfluous-__gfp_repeat.patch
arc-get-rid-of-superfluous-__gfp_repeat.patch
mips-get-rid-of-superfluous-__gfp_repeat.patch
nios2-get-rid-of-superfluous-__gfp_repeat.patch
parisc-get-rid-of-superfluous-__gfp_repeat.patch
score-get-rid-of-superfluous-__gfp_repeat.patch
powerpc-get-rid-of-superfluous-__gfp_repeat.patch
sparc-get-rid-of-superfluous-__gfp_repeat.patch
s390-get-rid-of-superfluous-__gfp_repeat.patch
sh-get-rid-of-superfluous-__gfp_repeat.patch
tile-get-rid-of-superfluous-__gfp_repeat.patch
unicore32-get-rid-of-superfluous-__gfp_repeat.patch
jbd2-get-rid-of-superfluous-__gfp_repeat.patch

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