[PATCH] omap iommu: Exit iteration if no possibility of available area
Hiroshi DOYU
Hiroshi.DOYU at nokia.com
Mon May 10 05:16:11 EDT 2010
Searching avaialable spaces should be stopped as soon as it turns out
that there's no possibility with the rest of it.
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU at nokia.com>
---
arch/arm/plat-omap/iovmm.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 5afe013..e43983b 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -287,7 +287,10 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da,
prev_end = 0;
list_for_each_entry(tmp, &obj->mmap, list) {
- if ((prev_end < start) && (start + bytes < tmp->da_start))
+ if (prev_end >= start)
+ break;
+
+ if (start + bytes < tmp->da_start)
goto found;
if (flags & IOVMF_DA_ANON)
--
1.7.1.rc1
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