kernfs_path(9)

💖 kernfs_path(9) 💖

okay so this is kernfs_path(9) from the Kernel API Manual, and it's literally here to build the full path of a given node. bestie, it's giving filesystem-tree main character energy 🌳✨

🌸 NAME 🌸

kernfs_path — build full path of a given node 🫶

✨ SYNOPSIS ✨

int kernfs_path (struct kernfs_node *kn , char *buf , size_t buflen );

🎀 ARGUMENTS 🎀

• kn — the kernfs_node of interest, aka the node we're obsessing over 💅
• buf — buffer to copy kn's name into, no cap 🫙
• buflen — size of buf, because boundaries are iconic 🔥

🦋 DESCRIPTION 🦋

If kn is NULL, the result will be "(null)". periodt 💀

It returns the length of the full path. And if the full length is equal to or greater than buflen, buf contains the truncated path with the trailing

okay bestie, the source sentence literally ends at trailing — that's not me skipping it, that's the actual page being dramatic and stopping mid-thought 😭

🌈 SEE ALSO 🌈

• Kernel file ./include/linux/kernfs.h
• kernfs_enable_ns(9)
• kernfs_ns_enabled(9)

cute sign-off: source ./include/linux, dated October 2026, for kernfs_path(9) 🫶💖 slay.