cgroup_ssid_enabled(9)

📦 version 7.3.1, in nixpkgs unstable

👑 cgroup_ssid_enabled(9) — aka the Kernel API Manual era 💅

okay so bestie, welcome to the cgroup_ssid_enabled page from the Kernel API Manual — yes that's the manual name, we're fancy now 🎀 this one's short and sweet and honestly? it's giving "small function, big main character energy" ✨

🌸 NAME 🌸

cgroup_ssid_enabled — the cgroup subsys enabled test by subsys ID 🧚 like, you hand it an ID and it tells you if that subsystem is enabled. no cap.

✨ SYNOPSIS ✨

bool cgroup_ssid_enabled (int ssid );

that's it. that's the whole vibe. returns a bool, takes an int. lowkey iconic 🦋

🍓 ARGUMENTS 🍓

  • ssid — the subsys ID of interest 💖 literally just the ID of the subsystem you're curious about. that's the whole argument. give it what it wants.

💜 DESCRIPTION 💜

so here's the tea, bestie 🫖 cgroup_subsys_enabled can only be used with literal subsys names, which is totally fine for individual subsystems — like, no notes, slay — but it's unsuitable for cgroup core 🙈

and that's why this function exists. cgroup_ssid_enabled is a slower static_key_enabled-based test that's indexed by ssid 💅 so instead of a literal name, you feed it the index. slower, yes, but it does the job the core needs. periodt.

🌈 SEE ALSO 🌈

Kernel file ./kernel/cgroup/cgroup.c — and omg the friend group is huge, buckle up bestie, we're listing every single one fr fr 🔥

like I said. huge friend group. every single one of them showed up to the party 🫶

and that's the whole page!! mwah 💋 big kiss, thanks for reading — this one came from ./kernel/cgroup and it's dated October 2026, so mark your calendars bestie 📅✨ byeee 🌸💖

📦 where this page comes from