cgroup_addrm_files(9)

📦 version 7.3.1, in nixpkgs unstable

✨ cgroup_addrm_files(9) ✨

okay so bestie, we are in the Kernel API Manual today 💅 and this little icon is cgroup_addrm_files(9) — yes she's a 9-section page, yes she's kernel-internal, yes she's lowkey everything. pop your snacks, we're adding and removing files from cgroup directories 🎀

🌸 NAME 🌸

cgroup_addrm_files — the one that adds or removes files to a cgroup directory 🦋

⭐ SYNOPSIS ⭐

int cgroup_addrm_files (struct cgroup_subsys_state *css , struct cgroup
*cgrp , struct cftype cfts[] , bool is_add );

literally that's the whole signature, no cap. it returns an int, it takes four things, and we're gonna go through all four of them right now 🫶

💖 ARGUMENTS 💖

  • css — the target css 💫
  • cgrp — the target cgroup (usually css->cgroup, like, that's the norm bestie)
  • cfts — array of cftypes to be added 📚
  • is_add — whether to add or remove 🎚️

🔥 DESCRIPTION 🔥

okay so here's the tea ☕ — depending on is_add, this function either adds or removes the files defined by cfts on cgrp. that's it. that's the whole job. she's versatile, she's a dual threat 👑

and here's the part that's genuinely iconic: for removals, this function never fails. like, ever. remove mode is literally flawless, she cannot miss 😌💅

🌈 SEE ALSO 🌈

it's giving extended family reunion — the kernel file ./kernel/cgroup/cgroup.c and honestly a whole friend group of related functions, all in section 9. here's literally every single one, no skips, no cuts 🫡

that's the whole squad, go say hi 🫶✨

no warnings, no bugs, no exit-status drama on this one — removals literally cannot fail, and that's the whole vibe check 💀💖

and that's the page!! 🎀 mwah 💅

bestie this one lives in ./kernel/cgroup, it's the October 2026 edition, and it's filed under cgroup_addrm_files(9) — so if you ever need to find her again, that's exactly where she's at 🦋✨ ily, go read the kernel source 🌸

📦 where this page comes from