The patch titled
bitmap: use for_each_set_bit()
has been added to the -mm tree. Its filename is
bitmap-use-for_each_set_bit.patch
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------------------------------------------------------
Subject: bitmap: use for_each_set_bit()
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Replace open-coded loop with for_each_set_bit().
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/bitmap.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff -puN lib/bitmap.c~bitmap-use-for_each_set_bit lib/bitmap.c
--- a/lib/bitmap.c~bitmap-use-for_each_set_bit
+++ a/lib/bitmap.c
@@ -733,10 +733,9 @@ void bitmap_remap(unsigned long *dst, co
bitmap_zero(dst, bits);
w = bitmap_weight(new, bits);
- for (oldbit = find_first_bit(src, bits);
- oldbit < bits;
- oldbit = find_next_bit(src, bits, oldbit + 1)) {
+ for_each_set_bit(oldbit, src, bits) {
int n = bitmap_pos_to_ord(old, oldbit, bits);
+
if (n < 0 || w == 0)
set_bit(oldbit, dst); /* identity map */
else
@@ -903,9 +902,7 @@ void bitmap_onto(unsigned long *dst, con
*/
m = 0;
- for (n = find_first_bit(relmap, bits);
- n < bits;
- n = find_next_bit(relmap, bits, n + 1)) {
+ for_each_set_bit(n, relmap, bits) {
/* m == bitmap_pos_to_ord(relmap, n, bits) */
if (test_bit(m, orig))
set_bit(n, dst);
@@ -934,9 +931,7 @@ void bitmap_fold(unsigned long *dst, con
return;
bitmap_zero(dst, bits);
- for (oldbit = find_first_bit(orig, bits);
- oldbit < bits;
- oldbit = find_next_bit(orig, bits, oldbit + 1))
+ for_each_set_bit(oldbit, orig, bits)
set_bit(oldbit % sz, dst);
}
EXPORT_SYMBOL(bitmap_fold);
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
linux-next.patch
fault-injection-correct-function-names-in-documentation.patch
bitops-rename-for_each_bit-to-for_each_set_bit.patch
hpet-use-for_each_set_bit.patch
intel-iommu-use-for_each_set_bit.patch
infiniband-use-for_each_set_bit.patch
ntfs-use-bitmap_weight.patch
phonet-use-for_each_set_bit.patch
atm-use-for_each_set_bit.patch
sched-use-for_each_set_bit.patch
bitmap-use-for_each_set_bit.patch
sgi-gru-use-for_each_set_bit.patch
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