kernfs_unbre...e_protection(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, welcome to the Kernel API Manual page for kernfs_unbreak_active_protection(9) 💖 — it's the manual for undoing kernfs_break_active_protection(), and yes, the function name is a whole mouthful. We're gonna walk through it together, no cap. ✨

🌸 NAME 🌸

kernfs_unbreak_active_protection — undo kernfs_break_active_protection(). periodt. 💅

✨ SYNOPSIS ✨

okay so the signature is literally:

void kernfs_unbreak_active_protection (struct kernfs_node *kn );

🎀 ARGUMENTS 🎀

  • kn — the self kernfs_node. 🫶 that's the one you're working with, bestie.

🦋 DESCRIPTION 🦋

okay so here's the tea: if kernfs_break_active_protection was called, this function must be invoked before finishing the kernfs operation. Like, not optional, bestie. ⚠️

big caveat, bestie: while this function restores the active reference, it doesn't and can't actually restore the active protection — kn may already be drained and removed, or be in the process of being drained and removed. 💀 Once kernfs_break_active_protection is invoked, that protection is irreversibly gone for the kernfs operation instance. no cap.

and while this function may be called at any point after kernfs_break_active_protection is invoked, its most useful location would be right before the enclosing kernfs operation returns. 🎯 like, just before you dip out — that's the vibe.

🌈 SEE ALSO 🌈

Kernel file: ./fs/kernfs/dir.c — bestie, that's where this party lives. 🏠

and the whole see-also crew is here:

okay, that's the whole page, bestie — this manual page comes from ./fs/kernfs, dated October 2026, and it's the kernfs_unbreak_active_protection(9) one. byeee 👑💖

📦 where this page comes from