From: Andrew Morton <akpm@linux-foundation.org>
To: Michel Lespinasse <walken@google.com>
Cc: Rik van Riel <riel@redhat.com>, Hugh Dickins <hughd@google.com>,
linux-kernel@vger.kernel.org,
Russell King <linux@arm.linux.org.uk>,
Ralf Baechle <ralf@linux-mips.org>,
Paul Mundt <lethal@linux-sh.org>,
"David S. Miller" <davem@davemloft.net>,
Chris Metcalf <cmetcalf@tilera.com>,
x86@kernel.org, William Irwin <wli@holomorphy.com>,
linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org,
linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org
Subject: Re: [PATCH 11/16] mm: use vm_unmapped_area() on arm architecture
Date: Tue, 6 Nov 2012 14:38:35 -0800 [thread overview]
Message-ID: <20121106143835.3e321da4.akpm@linux-foundation.org> (raw)
In-Reply-To: <1352155633-8648-12-git-send-email-walken@google.com>
On Mon, 5 Nov 2012 14:47:08 -0800
Michel Lespinasse <walken@google.com> wrote:
> Update the arm arch_get_unmapped_area[_topdown] functions to make
> use of vm_unmapped_area() instead of implementing a brute force search.
Again,
--- a/arch/arm/mm/mmap.c~mm-use-vm_unmapped_area-on-arm-architecture-fix
+++ a/arch/arm/mm/mmap.c
@@ -11,18 +11,6 @@
#include <linux/random.h>
#include <asm/cachetype.h>
-static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr,
- unsigned long pgoff)
-{
- unsigned long base = addr & ~(SHMLBA-1);
- unsigned long off = (pgoff << PAGE_SHIFT) & (SHMLBA-1);
-
- if (base + off <= addr)
- return base + off;
-
- return base - off;
-}
-
#define COLOUR_ALIGN(addr,pgoff) \
((((addr)+SHMLBA-1)&~(SHMLBA-1)) + \
(((pgoff)<<PAGE_SHIFT) & (SHMLBA-1)))
_
--
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next prev parent reply other threads:[~2012-11-06 22:38 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-05 22:46 [PATCH 00/16] mm: use augmented rbtrees for finding unmapped areas Michel Lespinasse
2012-11-05 22:46 ` [PATCH 01/16] mm: add anon_vma_lock to validate_mm() Michel Lespinasse
2012-11-05 23:06 ` Rik van Riel
2012-11-06 8:00 ` Michel Lespinasse
2012-11-05 22:46 ` [PATCH 02/16] mm: augment vma rbtree with rb_subtree_gap Michel Lespinasse
2012-11-05 22:47 ` [PATCH 03/16] mm: check rb_subtree_gap correctness Michel Lespinasse
2012-11-06 22:38 ` Andrew Morton
2012-11-09 14:13 ` Sasha Levin
2012-11-09 20:06 ` Hugh Dickins
2012-11-12 11:55 ` Michel Lespinasse
2012-11-05 22:47 ` [PATCH 04/16] mm: rearrange vm_area_struct for fewer cache misses Michel Lespinasse
2012-11-05 22:47 ` [PATCH 05/16] mm: vm_unmapped_area() lookup function Michel Lespinasse
2012-11-05 22:47 ` [PATCH 06/16] mm: use vm_unmapped_area() on x86_64 architecture Michel Lespinasse
2012-11-05 22:47 ` [PATCH 07/16] mm: fix cache coloring " Michel Lespinasse
2012-11-06 22:38 ` Andrew Morton
2012-11-05 22:47 ` [PATCH 08/16] mm: use vm_unmapped_area() in hugetlbfs Michel Lespinasse
2012-11-05 23:33 ` Rik van Riel
2012-11-05 22:47 ` [PATCH 09/16] mm: use vm_unmapped_area() in hugetlbfs on i386 architecture Michel Lespinasse
2012-11-05 23:07 ` Rik van Riel
2012-11-06 22:38 ` Andrew Morton
2012-11-06 22:48 ` Rik van Riel
2012-11-05 22:47 ` [PATCH 10/16] mm: use vm_unmapped_area() on mips architecture Michel Lespinasse
2012-11-05 23:34 ` Rik van Riel
2012-11-06 22:38 ` Andrew Morton
2012-11-05 22:47 ` [PATCH 11/16] mm: use vm_unmapped_area() on arm architecture Michel Lespinasse
2012-11-05 23:35 ` Rik van Riel
2012-11-06 22:38 ` Andrew Morton [this message]
2012-11-05 22:47 ` [PATCH 12/16] mm: use vm_unmapped_area() on sh architecture Michel Lespinasse
2012-11-05 23:35 ` Rik van Riel
2012-11-05 22:47 ` [PATCH 13/16] mm: use vm_unmapped_area() on sparc64 architecture Michel Lespinasse
2012-11-05 23:36 ` Rik van Riel
2012-11-05 22:47 ` [PATCH 14/16] mm: use vm_unmapped_area() in hugetlbfs " Michel Lespinasse
2012-11-05 23:36 ` Rik van Riel
2012-11-05 22:47 ` [PATCH 15/16] mm: use vm_unmapped_area() on sparc32 architecture Michel Lespinasse
2012-11-05 23:37 ` Rik van Riel
2012-11-06 1:25 ` David Miller
2012-11-06 3:13 ` Michel Lespinasse
2012-11-06 7:30 ` Rik van Riel
2012-11-06 17:41 ` David Miller
2012-11-05 22:47 ` [PATCH 16/16] mm: use vm_unmapped_area() in hugetlbfs on tile architecture Michel Lespinasse
2012-11-05 23:37 ` Rik van Riel
2012-11-06 22:11 ` [PATCH 00/16] mm: use augmented rbtrees for finding unmapped areas Andrew Morton
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