cmask_next_set(9)

🦋 NAME 🦋

okay so this is cmask_next_set(9), straight from the Kernel API Manual, and it's literally here to find the first set bit at or after @cid. bestie, that's the whole vibe ✨

🌸 SYNOPSIS 🌸

u32 cmask_next_set (const struct scx_cmask __arena *m , u32 cid );

🎀 ARGUMENTS 🎀

• m — the cmask to search, periodt 🔍
• cid — the starting cid, and yes it gets clamped to m->base if it's below 👑

💖 DESCRIPTION 💖

So it returns the smallest set cid in [cid, m->base + m->nr_cids), or m->base + m->nr_cids if there isn't one. that out-of-range sentinel matches the termination condition used by cmask_for_each, iykyk 🫶

🌈 SEE ALSO 🌈

Kernel file ./tools/sched_ext/include/scx/cid.bpf.h — __cmask_init(9), cmask_init(9), cmask_reframe(9), cmask_from_cpumask(9) 💅

source/version: ./tools/sched_ext/include/scx · date: October 2026 · page: cmask_next_set(9) — mwah, stay iconic bestie 💋✨