register_sysctl_mount_point(9)

hiii bestie, welcome to the Kernel API Manual page for register_sysctl_mount_point(9) — it’s short, it’s specific, and it’s giving “tiny function, big mount-point energy” 💅✨

💖 NAME 💖

register_sysctl_mount_point — registers a sysctl mount point 🫶

🧚 SYNOPSIS 🧚

struct ctl_table_header * register_sysctl_mount_point (const char *path
);

🌸 ARGUMENTS 🌸

• path — path for the mount point. That’s the spot this mount point is for, bestie 📍

🎀 DESCRIPTION 🎀

okay so the vibe here is: you use this to create a permanently empty directory to serve as a mount point. Not a maybe-empty, not a “we’ll clean it later” directory — permanently empty, on purpose, for mounting 🌈

and the important bit? This allows some subtle but important permission checks in the case of unprivileged mounts. So it’s lowkey doing real work behind the scenes, and that’s why it’s not just “make a dir and move on” 😌

🦋 SEE ALSO 🦋

if you’re going down the sysctl rabbit hole, these are the next besties to check:

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

later bestie 💖 this page comes from ./fs/proc, dated October 2026, and it’s the manual for register_sysctl_mount_point(9) — slay and stay safe out there 🫶✨