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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>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	linux-arch@vger.kernel.org
Subject: [PATCH 13/17] s390: get rid of superfluous __GFP_REPEAT
Date: Mon, 30 May 2016 11:14:55 +0200
Message-ID: <1464599699-30131-14-git-send-email-mhocko@kernel.org> (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.

page_table_alloc then uses the flag for a single page allocation. This
means that this flag has never been actually useful here because it has
always been used only for PAGE_ALLOC_COSTLY requests.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-arch@vger.kernel.org
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
---
 arch/s390/mm/pgalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index e8b5962ac12a..e2565d2d0c32 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -169,7 +169,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 			return table;
 	}
 	/* Allocate a fresh page */
-	page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
+	page = alloc_page(GFP_KERNEL);
 	if (!page)
 		return NULL;
 	if (!pgtable_page_ctor(page)) {
-- 
2.8.1

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>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	linux-arch@vger.kernel.org
Subject: [PATCH 13/17] s390: get rid of superfluous __GFP_REPEAT
Date: Mon, 30 May 2016 11:14:55 +0200
Message-ID: <1464599699-30131-14-git-send-email-mhocko@kernel.org> (raw)
Message-ID: <20160530091455.FbATkmhvsA8FNWr3anwZ09tMdEVxPQzHPYvtt9fumJo@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.

page_table_alloc then uses the flag for a single page allocation. This
means that this flag has never been actually useful here because it has
always been used only for PAGE_ALLOC_COSTLY requests.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-arch@vger.kernel.org
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
---
 arch/s390/mm/pgalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index e8b5962ac12a..e2565d2d0c32 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -169,7 +169,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 			return table;
 	}
 	/* Allocate a fresh page */
-	page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
+	page = alloc_page(GFP_KERNEL);
 	if (!page)
 		return NULL;
 	if (!pgtable_page_ctor(page)) {
-- 
2.8.1


  parent reply index

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 ` Michal Hocko [this message]
2016-05-30  9:14   ` [PATCH 13/17] s390: " Michal Hocko
2016-05-30  9:14 ` [PATCH 14/17] sh: " Michal Hocko
2016-05-30  9:14   ` 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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