kernfs_walk_and_get_ns(9)

💅 kernfs_walk_and_get_ns(9) — the Kernel API Manual moment

okay so bestie, welcome to kernfs_walk_and_get_ns(9) from the Kernel API Manual. yes that's a whole mouthful, but she's iconic and we're gonna get through it together, i promise 🫶

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✨ NAME ✨

kernfs_walk_and_get_ns — find and get a kernfs_node with the given path. literally that's her whole job, and she ate 💅

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🌸 SYNOPSIS 🌸

struct kernfs_node * kernfs_walk_and_get_ns (struct kernfs_node *parent
, const char *path , const struct ns_common *ns );

like, that's the whole signature, no cap. she takes three things and gives you back a struct kernfs_node * ✨

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🎀 ARGUMENTS 🎀

• parent — the kernfs_node you're searching under. your starting point, your home base, your main character's origin story 🏠
• path — the path you're looking for. what you're hunting for down there 🔍
• ns — the namespace tag to use. the vibe check for which namespace we're in 🌈

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🦋 DESCRIPTION 🦋

so here's the tea: she looks for a kernfs_node with path path under parent, and if she finds it, she gets a reference to it. obsessed 💖

⚠️ important bestie: this function may sleep. do not call her from a context where sleeping is illegal, fr fr. she needs her beauty rest 😴

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👑 RETURN 👑

• pointer to the found kernfs_node on success — slay, you found her 💅
• NULL on failure — she's not there, it's giving nothing 😭

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🔥 SEE ALSO 🔥

Kernel file ./fs/kernfs/dir.c — and honestly the whole girl squad:

• kernfs_path_from_node_locked(9)
• kernfs_name(9)
• kernfs_path_from_node(9)
• pr_cont_kernfs_name(9)
• pr_cont_kernfs_path(9)
• kernfs_get_parent(9)
• kernfs_name_hash(9)
• kernfs_link_sibling(9)
• kernfs_unlink_sibling(9)
• kernfs_get_active(9)
• kernfs_put_active(9)
• kernfs_drain(9)
• kernfs_get(9)
• kernfs_put(9)
• kernfs_node_from_dentry(9)
• kernfs_add_one(9)
• kernfs_find_ns(9)
• kernfs_find_and_get_ns(9)
• kernfs_create_root(9)
• kernfs_destroy_root(9)
• kernfs_root_to_node(9)
• kernfs_create_dir_ns(9)
• kernfs_create_empty_dir(9)
• kernfs_next_descendant_post(9)
• kernfs_activate(9)
• kernfs_show(9)
• kernfs_remove(9)
• kernfs_break_active_protection(9)
• kernfs_unbreak_active_protection(9)
• kernfs_remove_self(9)
• kernfs_remove_by_name_ns(9)
• kernfs_rename_ns(9)

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okay that's the whole page bestie, you're officially a kernfs girlie now 💜

sign-off tea: this lil beauty lives in ./fs/kernfs, version vibes from October 2026, and she's filed under kernfs_walk_and_get_ns(9). periodt 🫶✨