swap_cluster_lock(9)

💅 swap_cluster_lock(9) — Kernel API Manual ✨

Okay bestie, welcome to the swap_cluster_lock(9) page. It's giving kernel API realness.

💖 NAME 💖

swap_cluster_lock — locks the swap cluster of a given offset and returns it to you. Literally lock it and hand it back. Periodt.

🎀 SYNOPSIS 🎀

       struct swap_cluster_info * swap_cluster_lock (struct swap_info_struct
       *si , unsigned long offset );

🦋 ARGUMENTS 🦋

• si — the swap device the cluster belongs to. That's its home base, no cap.
• offset — the swap entry offset, pointing to a valid slot. Like the exact spot in the swap device, iykyk.

🌸 CONTEXT 🌸

Context check, bestie: the caller must make sure offset is in the valid range, and must protect the swap device with a reference count or locks. That's the vibe, and it is on you. 🫶

🔥 SEE ALSO 🔥

• Kernel file ./mm/swap.h
• folio_matches_swap_entry(9)

— sourced from ./mm, dated October 2026, swap_cluster_lock(9) signing off 💅