STRUCT MM_CID_PCPU(9)

💅 struct mm_cid_pcpu(9) — like, the whole vibe ✨

okay so bestie, welcome to the Kernel API Manual 🫶 this is one of those tiny little structs that's doing main character energy in the background and you're gonna understand it in like two minutes, no cap.

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🌸 NAME 🌸

struct mm_cid_pcpu — literally just the storage spot for per CPU MM_CID data 💖 that's it, that's the whole job.

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✨ SYNOPSIS ✨

struct mm_cid_pcpu {
    unsigned int    cid;
};

look at her. one field. iconic behavior honestly 🎀

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🦋 Members 🦋

• cid — the CID that's associated to the CPU, either permanently or while a task with a CID is running 👑 so like, it can be the forever-CID or the temporary-CID-while-someone's-doing-stuff CID, iykyk.

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🌈 SEE ALSO 🌈

the kernel file ./include/linux/rseq_types.h, plus these absolute legends:

• struct rseq_event(9)
• struct rseq_ids(9)
• union rseq_slice_state(9)
• struct rseq_slice(9)
• struct rseq_data(9)
• struct sched_mm_cid(9)
• struct mm_mm_cid(9)

go read them, they're all in the same friend group 💜

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and that's the tea, bestie ☕ this little page lives in ./include/linux, it's dated October 2026, and it's filed under struct mm_cid_pcpu(9) — mwah 💋✨