cpumask_and(9)

✨ cpumask_and(9) ✨

Hey bestie, welcome to the Kernel API Manual 💖 okay so this one is lowkey iconic — it's giving "bitwise AND but make it cpumask" energy, and honestly? Obsessed.

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🌸 NAME 🌸

cpumask_and — literally just *dstp = *src1p & *src2p, no cap.

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🦋 SYNOPSIS 🦋

bool cpumask_and (struct cpumask *dstp , const struct cpumask *src1p ,
const struct cpumask *src2p );

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🎀 ARGUMENTS 🎀

• dstp — the cpumask result, aka where the magic lands, bestie 💅
• src1p — the first input, the main character of this bitwise moment ✨
• src2p — the second input, showing up for the AND party 🫶

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🔥 RETURN 🔥

Returns false if *dstp is empty — like, literally empty, nothing there, a whole vibe void 😭 — else it returns true. Slay.

No cap: the return value is your vibe check on whether the destination mask actually has anything in it.

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🌈 SEE ALSO 🌈

Bestie, buckle up, this list is LONG and honestly iconic. Kernel file ./include/linux/cpumask.h brings you the whole cpumask cinematic universe 👑

• 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_and_wrap(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_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)

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Okay that's the whole page, bestie — go forth and AND those masks like the icon you are 💜✨

Source path: ./include/linux · Date: October 2026 · Manual: cpumask_and(9) — mwah, bye! 💋🎀