cpumask_next_and_wrap(9)

💅 cpumask_next_and_wrap(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a little function with main character energy: cpumask_next_and_wrap 🎀

🌸 NAME 🌸

cpumask_next_and_wrap — grab the next cpu that's in src1p & src2p, starting from @n+1. And if there's nothing to find? it wraps around and starts from the beginning 🔁 literally the "no thoughts, head empty, loop back around" of cpu masks. periodt.

✨ SYNOPSIS ✨

unsigned int cpumask_next_and_wrap (int n , const struct cpumask *src1p
, const struct cpumask *src2p );

🦋 ARGUMENTS 🦋

• n — the cpu prior to the place we're searching, i.e. the search kicks off from n+1 👑 (so it's the "one before", not the one you actually get, iykyk)
• src1p — the first cpumask pointer 💖
• src2p — the second cpumask pointer 💖

🫶 RETURN 🫶

the next set bit, wrapped if needed, or >= nr_cpu_ids if src1p & src2p is empty 😭 (big "we searched everywhere and found nobody" energy ngl).

🌈 SEE ALSO 🌈

Kernel file ./include/linux/cpumask.h — and honestly the whole cpumask friend group showed up to the group chat:

• cpumask_pr_args(9), cpumask_first(9), cpumask_first_zero(9), cpumask_first_and(9), cpumask_first_andnot(9), cpumask_first_and_and(9), cpumask_last(9), cpumask_next(9), cpumask_next_zero(9), cpumask_next_and(9), cpumask_next_andnot(9), cpumask_next_wrap(9), cpumask_random(9), for_each_cpu(9), for_each_cpu_wrap(9), for_each_cpu_and(9), for_each_cpu_andnot(9), for_each_cpu_or(9), for_each_cpu_from(9)
• cpumask_any_but(9), cpumask_any_and_but(9), cpumask_any_andnot_but(9), cpumask_nth(9), cpumask_nth_and(9), cpumask_nth_and_andnot(9), cpumask_set_cpu(9), cpumask_clear_cpus(9), cpumask_clear_cpu(9), cpumask_test_cpu(9), cpumask_test_and_set_cpu(9), cpumask_test_and_clear_cpu(9), cpumask_setall(9), cpumask_clear(9)
• cpumask_and(9), cpumask_or(9), cpumask_weighted_or(9), cpumask_xor(9), cpumask_andnot(9), cpumask_equal(9), cpumask_or_equal(9), cpumask_intersects(9), cpumask_subset(9), cpumask_empty(9), cpumask_full(9)
• cpumask_weight(9), cpumask_weight_and(9), cpumask_weight_andnot(9), cpumask_shift_right(9), cpumask_shift_left(9), cpumask_copy(9), cpumask_any(9), cpumask_any_and(9), cpumask_of(9)
• cpumask_parse_user(9), cpumask_parselist_user(9), cpumask_parse(9), cpulist_parse(9), cpumask_size(9), alloc_cpumask_var(9), to_cpumask(9), num_online_cpus(9), cpumap_print_bitmask_to_buf(9), cpumap_print_list_to_buf(9)

and that's the whole page, bestie!! this one lives in ./include/linux and it's dated October 2026 — so yeah, it's from the future, we love that for it 💜🦋 slay, go read the whole cpumask family, they ate fr fr 🎀✨