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
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
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
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
