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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-05-21 15:29:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-05-21 15:29:01 -0700 |
| commit | 4865a27c66fda6a32511ec5492f4bbec437f512d (patch) | |
| tree | dae4d82641bb45bc97735799dd7f0aac88b34778 /include/linux/cpumask.h | |
| parent | b6394d6f715919c053c1450ef0d7c5e517b53764 (diff) | |
| parent | 5671dca241b9a2f4ecf88d8e992041cfb580e0a5 (diff) | |
Merge tag 'bitmap-for-6.10v2' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
- topology_span_sane() optimization from Kyle Meyer
- fns() rework from Kuan-Wei Chiu (used in cpumask_local_spread() and
other places)
- headers cleanup from Andy
- add a MAINTAINERS record for bitops API
* tag 'bitmap-for-6.10v2' of https://github.com/norov/linux:
usercopy: Don't use "proxy" headers
bitops: Move aligned_byte_mask() to wordpart.h
MAINTAINERS: add BITOPS API record
bitmap: relax find_nth_bit() limitation on return value
lib: make test_bitops compilable into the kernel image
bitops: Optimize fns() for improved performance
lib/test_bitops: Add benchmark test for fns()
Compiler Attributes: Add __always_used macro
sched/topology: Optimize topology_span_sane()
cpumask: Add for_each_cpu_from()
Diffstat (limited to 'include/linux/cpumask.h')
| -rw-r--r-- | include/linux/cpumask.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 7600e877908f..4d3bef644add 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -386,6 +386,16 @@ unsigned int __pure cpumask_next_wrap(int n, const struct cpumask *mask, int sta for_each_or_bit(cpu, cpumask_bits(mask1), cpumask_bits(mask2), small_cpumask_bits) /** + * for_each_cpu_from - iterate over CPUs present in @mask, from @cpu to the end of @mask. + * @cpu: the (optionally unsigned) integer iterator + * @mask: the cpumask pointer + * + * After the loop, cpu is >= nr_cpu_ids. + */ +#define for_each_cpu_from(cpu, mask) \ + for_each_set_bit_from(cpu, cpumask_bits(mask), small_cpumask_bits) + +/** * cpumask_any_but - return a "random" in a cpumask, but not this one. * @mask: the cpumask to search * @cpu: the cpu to ignore. |