__scx_cmask_init(9)

💖 NAME 💖

okay so bestie, welcome to the Kernel API Manual — today we're looking at __scx_cmask_init(9), and it's literally here to initialize @m with explicit storage capacity. That's the whole assignment. 🫶

✨ SYNOPSIS ✨

void __scx_cmask_init (struct scx_cmask *m , u32 base , u32 nr_cids , u32 alloc_cids );

🎀 ARGUMENTS 🎀

• m — the cmask to initialize, bestie. 💅
• base — first cid of the active range. 🦋
• nr_cids — number of cids in the active range. 🌸
• alloc_cids — storage capacity in cids, and it has to be at least nr_cids. 👑

🌈 DESCRIPTION 🌈

Use this when your storage is sized larger than the initial active range. All of bits[] is zeroed — yes, the whole thing, no cap. ✨

🔥 SEE ALSO 🔥

Peep the kernel file ./kernel/sched/ext/cid.h and these absolute icons: cid_valid(9), __scx_cid_to_cpu(9), __scx_cpu_to_cid(9), scx_cid_to_cpu(9), scx_cpu_to_cid(9), scx_is_cid_type(9), scx_cmask_init(9), scx_cmask_reframe(9), scx_cmask_test(9), scx_cmask_for_each_cid(9). iykyk 💜

mwah 💋 — this page comes from ./kernel/sched/ext, dated October 2026, and it's the __scx_cmask_init(9) entry in the Kernel API Manual. bye bestie, go zero some bits responsibly 🎀