PERCPU_INPUT(9)

💅 PERCPU_INPUT(9) — Kernel API Manual 💅

💖 NAME 💖

PERCPU_INPUT(9) — the percpu input sections. Okay so this is the kernel API manual page for the percpu input section situation, and we're gonna keep every detail, no cap. ✨

✨ SYNOPSIS ✨

PERCPU_INPUT (cacheline );

🎀 ARGUMENTS 🎀

• cacheline — cacheline size. That's the whole arg, bestie. 💅

🦋 DESCRIPTION 🦋

PERCPU_INPUT is giving the core percpu section names and core symbols which do not rely directly upon load addresses. Ngl, that's the tea. ☕

cacheline is used to align subsections to avoid false cacheline sharing between subsections for different purposes. So yes, the alignment is the moment — it keeps different-purpose subsections from false-sharing a cacheline. 🫶

🌈 SEE ALSO 🌈

• Kernel file ./include/asm-generic/vmlinux.lds.h
• PERCPU_SECTION(9)

💌 source/version ./include/asm-generic, date October 2026 — that's the page, bestie, stay iconic 💅