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* + arch-arm-plat-omap-iovmmc-fix-end-address-of-vm-area-comparation-in-alloc_iovm_area.patch added to -mm tree
@ 2010-08-19 23:23 akpm
  0 siblings, 0 replies; only message in thread
From: akpm @ 2010-08-19 23:23 UTC (permalink / raw)
  To: mm-commits; +Cc: x0095840, Hiroshi.DOYU, linux, tony


The patch titled
     arch/arm/plat-omap/iovmm.c: fix end address of vm area comparation in alloc_iovm_area
has been added to the -mm tree.  Its filename is
     arch-arm-plat-omap-iovmmc-fix-end-address-of-vm-area-comparation-in-alloc_iovm_area.patch

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------------------------------------------------------
Subject: arch/arm/plat-omap/iovmm.c: fix end address of vm area comparation in alloc_iovm_area
From: Fernando Guzman Lugo <x0095840@ti.com>

End address of the vm area is .start + bytes -1., not start + byte.  This
patch fixes that issue by doing an inclusive comparison with
tmp->da_start.  This issue was preventing allocate an area of size exactly
the same than the free area.  I did no change the value of da_end of each
vm area because it is used to get area size in several places.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm/plat-omap/iovmm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN arch/arm/plat-omap/iovmm.c~arch-arm-plat-omap-iovmmc-fix-end-address-of-vm-area-comparation-in-alloc_iovm_area arch/arm/plat-omap/iovmm.c
--- a/arch/arm/plat-omap/iovmm.c~arch-arm-plat-omap-iovmmc-fix-end-address-of-vm-area-comparation-in-alloc_iovm_area
+++ a/arch/arm/plat-omap/iovmm.c
@@ -292,7 +292,7 @@ static struct iovm_struct *alloc_iovm_ar
 		if (prev_end >= start)
 			break;
 
-		if (start + bytes < tmp->da_start)
+		if (start + bytes <= tmp->da_start)
 			goto found;
 
 		if (flags & IOVMF_DA_ANON)
_

Patches currently in -mm which might be from x0095840@ti.com are

arch-arm-plat-omap-iovmmc-fix-end-address-of-vm-area-comparation-in-alloc_iovm_area.patch


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2010-08-19 23:23 + arch-arm-plat-omap-iovmmc-fix-end-address-of-vm-area-comparation-in-alloc_iovm_area.patch added to -mm tree akpm

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