The patch titled
iommu-helper: simplify find_next_zero_area
has been removed from the -mm tree. Its filename was
iommu-helper-simplify-find_next_zero_area.patch
This patch was dropped because an updated version will be merged
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: iommu-helper: simplify find_next_zero_area
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
DESC
iommu-helper: simplify find_next_zero_area
EDESC
Use find_next_bit instead of doing test_bit for each bit
Cc: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Cc: Joerg Roedel <joerg.roedel@xxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN lib/iommu-helper.c~revert-lib-iommu-helperc-fix-off-by-one-error-in-find_next_zero_area lib/iommu-helper.c
--- a/lib/iommu-helper.c~revert-lib-iommu-helperc-fix-off-by-one-error-in-find_next_zero_area
+++ a/lib/iommu-helper.c
@@ -19,13 +19,12 @@ again:
index = (index + align_mask) & ~align_mask;
end = index + nr;
- if (end > size)
+ if (end >= size)
return -1;
- for (i = index; i < end; i++) {
- if (test_bit(i, map)) {
- start = i+1;
- goto again;
- }
+ i = find_next_bit(map, end, index);
+ if (i < end) {
+ start = i + 1;
+ goto again;
}
return index;
}
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
linux-next.patch
iommu-helper-simplify-find_next_zero_area.patch
bitmap-introduce-bitmap_set-bitmap_clear-bitmap_find_next_zero_area.patch
isp1362-hcd-use-bitmap_find_next_zero_area.patch
mlx4-use-bitmap_find_next_zero_area.patch
sparc-use-bitmap_find_next_zero_area.patch
ia64-use-bitmap_find_next_zero_area.patch
genalloc-use-bitmap_find_next_zero_area.patch
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