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lib/bitmap: introduce for_each_set_bit_wrap() macro

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Add for_each_set_bit_wrap() macro and use it in for_each_cpu_wrap(). The
new macro is based on __for_each_wrap() iterator, which is simpler and
smaller than cpumask_next_wrap().

Signed-off-by: Yury Norov <yury.norov@gmail.com>
This commit is contained in:
Yury Norov
2022-09-19 14:05:57 -07:00
parent 6cc18331a9
commit 4fe49b3b97
2 changed files with 41 additions and 4 deletions
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6
include/linux/cpumask.h
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@@ -289,10 +289,8 @@ unsigned int __pure cpumask_next_wrap(int n, const struct cpumask *mask, int sta
*
* After the loop, cpu is >= nr_cpu_ids.
*/
#define for_each_cpu_wrap(cpu, mask, start) \
for ((cpu) = cpumask_next_wrap((start)-1, (mask), (start), false); \
(cpu) < nr_cpumask_bits; \
(cpu) = cpumask_next_wrap((cpu), (mask), (start), true))
#define for_each_cpu_wrap(cpu, mask, start) \
for_each_set_bit_wrap(cpu, cpumask_bits(mask), nr_cpumask_bits, start)
/**
* for_each_cpu_and - iterate over every cpu in both masks