The patch titled
mlx4: use bitmap_find_next_zero_area()
has been added to the -mm tree. Its filename is
mlx4-use-bitmap_find_next_zero_area.patch
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------------------------------------------------------
Subject: mlx4: use bitmap_find_next_zero_area()
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Roland Dreier <rolandd@xxxxxxxxx>
Cc: Yevgeny Petrilin <yevgenyp@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN drivers/net/mlx4/alloc.c~mlx4-use-bitmap_find_next_zero_area drivers/net/mlx4/alloc.c
--- a/drivers/net/mlx4/alloc.c~mlx4-use-bitmap_find_next_zero_area
+++ a/drivers/net/mlx4/alloc.c
@@ -72,35 +72,6 @@ void mlx4_bitmap_free(struct mlx4_bitmap
mlx4_bitmap_free_range(bitmap, obj, 1);
}
-static unsigned long find_aligned_range(unsigned long *bitmap,
- u32 start, u32 nbits,
- int len, int align)
-{
- unsigned long end, i;
-
-again:
- start = ALIGN(start, align);
-
- while ((start < nbits) && test_bit(start, bitmap))
- start += align;
-
- if (start >= nbits)
- return -1;
-
- end = start+len;
- if (end > nbits)
- return -1;
-
- for (i = start + 1; i < end; i++) {
- if (test_bit(i, bitmap)) {
- start = i + 1;
- goto again;
- }
- }
-
- return start;
-}
-
u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align)
{
u32 obj, i;
@@ -110,13 +81,13 @@ u32 mlx4_bitmap_alloc_range(struct mlx4_
spin_lock(&bitmap->lock);
- obj = find_aligned_range(bitmap->table, bitmap->last,
- bitmap->max, cnt, align);
+ obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max,
+ bitmap->last, cnt, align - 1);
if (obj >= bitmap->max) {
bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
& bitmap->mask;
- obj = find_aligned_range(bitmap->table, 0, bitmap->max,
- cnt, align);
+ obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max,
+ 0, cnt, align - 1);
}
if (obj < bitmap->max) {
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
iommu-helper-simplify-find_next_zero_area.patch
bitmap-introduce-bitmap_set-bitmap_clear-bitmap_find_next_zero_area.patch
iommu-helper-use-bitmap-library.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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