From: Michal Hocko <mhocko@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Michal Hocko <mhocko@suse.com>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
linux-arch@vger.kernel.org
Subject: [PATCH 14/17] sh: get rid of superfluous __GFP_REPEAT
Date: Mon, 30 May 2016 11:14:56 +0200 [thread overview]
Message-ID: <1464599699-30131-15-git-send-email-mhocko@kernel.org> (raw)
Message-ID: <20160530091456.R-LSp6WbshmqF3zt657nnfduqxSv_YOmrvtvlMVSKY0@z> (raw)
In-Reply-To: <1464599699-30131-1-git-send-email-mhocko@kernel.org>
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.
PGALLOC_GFP uses __GFP_REPEAT but {pgd,pmd}_alloc allocate from
{pgd,pmd}_cache but both caches are allocating up to PAGE_SIZE
objects. This means that this flag has never been actually useful here
because it has always been used only for PAGE_ALLOC_COSTLY requests.
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
---
arch/sh/mm/pgtable.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sh/mm/pgtable.c b/arch/sh/mm/pgtable.c
index 26e03a1f7ca4..a62bd8696779 100644
--- a/arch/sh/mm/pgtable.c
+++ b/arch/sh/mm/pgtable.c
@@ -1,7 +1,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
-#define PGALLOC_GFP GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO
+#define PGALLOC_GFP GFP_KERNEL | __GFP_ZERO
static struct kmem_cache *pgd_cachep;
#if PAGETABLE_LEVELS > 2
--
2.8.1
next prev parent reply other threads:[~2016-05-30 9:15 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1464599699-30131-1-git-send-email-mhocko@kernel.org>
2016-05-30 9:14 ` [PATCH 01/17] tree wide: get rid of __GFP_REPEAT for order-0 allocations part I Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 02/17] x86: get rid of superfluous __GFP_REPEAT Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 03/17] x86/efi: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 04/17] arm: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-06-01 16:24 ` Russell King - ARM Linux
2016-06-01 16:24 ` Russell King - ARM Linux
2016-06-02 6:32 ` Michal Hocko
2016-06-02 6:32 ` Michal Hocko
2016-07-20 20:59 ` Andrew Morton
2016-05-30 9:14 ` [PATCH 05/17] arm64: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 06/17] arc: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 07/17] mips: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 08/17] nios2: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 09/17] parisc: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 10/17] score: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 11/17] powerpc: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 12/17] sparc: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 18:23 ` David Miller
2016-05-30 18:23 ` David Miller
2016-05-30 9:14 ` [PATCH 13/17] s390: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` Michal Hocko [this message]
2016-05-30 9:14 ` [PATCH 14/17] sh: " Michal Hocko
2016-05-30 9:14 ` [PATCH 15/17] tile: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
2016-05-30 9:14 ` [PATCH 16/17] unicore32: " Michal Hocko
2016-05-30 9:14 ` Michal Hocko
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