ipc_get_maxidx(9)

✨ NAME ✨

okay bestie, welcome to the Kernel API Manual page for ipc_get_maxidx(9) 💖 — this one is literally about ipc_get_maxidx — get the highest assigned index 👑

🌸 SYNOPSIS 🌸

int ipc_get_maxidx (struct ipc_ids *ids );

🎀 ARGUMENTS 🎀

• ids — the ipc identifier set 🫶

💅 DESCRIPTION 💅

So the function returns the highest assigned index for ids ✨. And no cap: it doesn't scan the idr tree — it uses a cached value ⚡. Very cached-value main character energy.

Called with ipc_ids.rwsem held for reading 🔒. That's the vibe check, bestie.

🦋 SEE ALSO 🦋

• Kernel file ./ipc/util.h 📁

mwah 💋 — from ./ipc, dated October 2026 🎀