unregister_sysctl_table(9)

💅 unregister_sysctl_table — a Kernel API Manual moment (section 9, bestie)

okay so real talk, this is unregister_sysctl_table(9) from the Kernel API Manual, and she's the cleanup crew 🧹✨ — the function you call when the sysctl table era is over.

---

🌸 NAME 🌸

unregister_sysctl_table — unregister a sysctl table hierarchy 🫶

like, the whole hierarchy. not just the vibe. the hierarchy. ✨

---

🎀 SYNOPSIS 🎀

void unregister_sysctl_table (struct ctl_table_header * header );

she takes one argument, she returns void, she does not do small talk. 💅

---

🦋 ARGUMENTS 🦋

• header — the header you got back from register_sysctl or __register_sysctl_table 👑 like, the exact one. the one they handed you. not a cousin, not a lookalike, that header. iykyk.

---

⭐ DESCRIPTION ⭐

so what she does is unregister the sysctl table and all its children. the whole family tree, gone, no cap. 🌈

but here's the tea ☕ and it's important, so listen: the proc entries may not actually be removed until they are no longer used by anyone. 😭 like, she's filed the paperwork, but the entries are still out there living their lives until every last user lets go. so don't go assuming they're instantly gone-gone. that's the whole caveat, periodt.

---

🔥 SEE ALSO 🔥

• Kernel file ./fs/proc/proc_sysctl.c 📁
• register_sysctl_mount_point(9)
• get_subdir(9)
• __register_sysctl_table(9)
• register_sysctl_sz(9)
• __register_sysctl_init(9)

the whole friend group, fr fr 🫶

---

⚠️ gentle reminder bestie: those proc entries hanging around after unregister is not a bug, it's literally stated up there. don't come for her. 💀

---

mwah 💋 that's the page! this little icon lives over in ./fs/proc 🍓, dated October 2026 ⭐, and her full government name is unregister_sysctl_table(9) 👑 — take care of her, she's doing her best 🧚💜