percpu_ref_reinit(9)

✨ percpu_ref_reinit ✨

okay so this is the manual page for percpu_ref_reinit, from the Kernel API Manual besties 💅 like yes we're reading kernel docs for fun now, that's the energy

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🌸 NAME 🌸

percpu_ref_reinit — re-initialize a percpu refcount 🎀

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🦋 SYNOPSIS 🦋

void percpu_ref_reinit (struct percpu_ref *ref );

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💖 ARGUMENTS 💖

• ref — the perpcu_ref you wanna re-initialize 🫶 (yes that's exactly how it's spelled in the source, no I'm not fixing it, iykyk)

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⭐ DESCRIPTION ⭐

So the vibe here is: you take ref and you put it right back into the same state it was in when percpu_ref_init finished — except we're ignoring PERCPU_REF_INIT_DEAD for this one. like a little reset button, but make it fashion ✨

🚨 important bestie: ref must have already been initialized successfully and it must have reached 0 and it must not have exited. all three. no skipping. that's the vibe check and if it fails, we're not doing this 💀

Also, and this is lowkey the cool part: percpu_ref_tryget[_live]() are totally safe to run on ref while this function is still in progress. yes, mid-function. it's giving main character energy 🔥

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🌈 SEE ALSO 🌈

• Kernel file ./lib/percpu-refcount.c
• percpu_ref_init(9)
• percpu_ref_exit(9)
• percpu_ref_switch_to_atomic(9)
• percpu_ref_switch_to_atomic_sync(9)
• percpu_ref_switch_to_percpu(9)
• percpu_ref_kill_and_confirm(9)
• percpu_ref_is_zero(9)
• percpu_ref_resurrect(9)

like a whole little percpu refcount friend group honestly, go say hi 💜

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and that's the whole page babes ✨ this iconic little entry lives in ./lib, dated October 2026 — ok that date ate honestly 👑 go forth and reinit responsibly 🧚💖