percpu_ref_get(9)

💅 percpu_ref_get

okay so bestie, welcome to the Kernel API Manual — we're talking about percpu_ref_get, and she's iconic for exactly one job: bumping a percpu refcount. no cap. 🫶

✨ NAME ✨

percpu_ref_get — increment a percpu refcount 💖

🌸 SYNOPSIS 🌸

void percpu_ref_get (struct percpu_ref *ref );

🎀 ARGUMENTS 🎀

• ref — the percpu_ref to get, aka the cutie you're handing to this function. 🎀

🦋 DESCRIPTION 🦋

So basically this is analogous to atomic_long_inc — same energy, different refcount situation. ✨

Safety vibe check: it's safe to call this function as long as ref is between init and exit. That's the whole rule, bestie. Don't come for me if it's outside that window. 💀

🔥 SEE ALSO 🔥

Kernel file ./include/linux/percpu-refcount.h, plus these other icons:

• percpu_ref_kill(9)
• percpu_ref_get_many(9)
• percpu_ref_tryget_many(9)
• percpu_ref_tryget(9)
• percpu_ref_tryget_live_rcu(9)
• percpu_ref_tryget_live(9)
• percpu_ref_put_many(9)
• percpu_ref_put(9)
• percpu_ref_is_dying(9)

that's the whole page, periodt. this one lives in ./include/linux and is dated October 2026 — mwah 💋