bpf_cpumask_full(9)

💖 NAME 💖

bpf_cpumask_full — Check if a cpumask has all bits set. Okay so this is the bpf_cpumask_full(9) page, and it’s coming to you from the Kernel API Manual, bestie. Tiny function, very “does exactly what it says on the label” energy. 💅

✨ SYNOPSIS ✨

__bpf_kfunc bool bpf_cpumask_full (const struct cpumask *cpumask );

🌸 ARGUMENTS 🌸

• cpumask — The cpumask being checked. That’s the one getting the full vibe check, no cap. 🫶

🎀 RETURN 🎀

• true — All of the bits in cpumask are set.
• false — At least one bit in cpumask is cleared.

So yeah, it’s a yes/no situation, and false means at least one bit said “not today.” 💀

🦋 DESCRIPTION 🦋

A struct bpf_cpumask pointer may be safely passed to cpumask. That’s the safe-passing note, and it’s giving “you can hand this over without chaos” energy, fr fr. 🫶

🔥 SEE ALSO 🔥

• Kernel file ./kernel/bpf/cpumask.c
• struct bpf_cpumask(9)
• bpf_cpumask_create(9)
• bpf_cpumask_acquire(9)
• bpf_cpumask_release(9)
• bpf_cpumask_first(9)
• bpf_cpumask_first_zero(9)
• bpf_cpumask_first_and(9)
• bpf_cpumask_set_cpu(9)
• bpf_cpumask_clear_cpu(9)
• bpf_cpumask_test_cpu(9)
• bpf_cpumask_test_and_set_cpu(9)
• bpf_cpumask_test_and_clear_cpu(9)
• bpf_cpumask_setall(9)
• bpf_cpumask_clear(9)
• bpf_cpumask_and(9)
• bpf_cpumask_or(9)
• bpf_cpumask_xor(9)
• bpf_cpumask_equal(9)
• bpf_cpumask_intersects(9)
• bpf_cpumask_subset(9)
• bpf_cpumask_empty(9)
• bpf_cpumask_copy(9)
• bpf_cpumask_any_distribute(9)
• bpf_cpumask_any_and_distribute(9)
• bpf_cpumask_weight(9)
• bpf_cpumask_populate(9)

That’s the whole page, bestie. Source/version: ./kernel/bpf; date: October 2026. Go check those bits and slay. 💖✨