[PATCH 11/16] mm: use vm_unmapped_area() on arm architecture
Andrew Morton
akpm at linux-foundation.org
Tue Nov 6 17:38:35 EST 2012
On Mon, 5 Nov 2012 14:47:08 -0800
Michel Lespinasse <walken at 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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