try_to_unlazy(9)

💅 NAME 💅

okay so welcome to try_to_unlazy(9) from the Kernel API Manual — this one is literally about trying to switch to ref-walk mode, and honestly? it's giving very specific kernel-pathwalk main character energy. 🫶

try_to_unlazy — try to switch to ref-walk mode.

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✨ SYNOPSIS ✨

bool try_to_unlazy (struct nameidata *nd );

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🎀 ARGUMENTS 🎀

• nd — nameidata pathwalk data. that's the vibe, bestie: it's the nameidata struct carrying the pathwalk data.

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🌸 RETURN 🌸

• true on success
• false on failure

no in-between, no "maybe" — just true or false, periodt. 💖

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🦋 DESCRIPTION 🦋

try_to_unlazy attempts to legitimize the current nd->path and nd->root for ref-walk mode. like, it's trying to make those path bits official for ref-walk mode. ✨

🚨 important bestie: it must be called from rcu-walk context. not optional, not a suggestion — must.

😭 and listen: nothing should touch nameidata between try_to_unlazy failure and terminate_walk. nothing. don't even look at it. don't breathe on it. keep your hands off the nameidata, okay?

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👑 SEE ALSO 👑

straight from the kernel file ./fs/namei.c — here's the whole squad, no cap:

• check_acl(9)
• acl_permission_check(9)
• generic_permission(9)
• do_inode_permission(9)
• sb_permission(9)
• inode_permission(9)
• path_get(9)
• path_put(9)
• path_connected(9)
• try_to_unlazy_next(9)
• complete_walk(9)
• may_follow_link(9)
• safe_hardlink_source(9)
• may_linkat(9)
• may_create_in_sticky(9)
• lookup_fast(9)
• start_dirop(9)
• end_dirop(9)
• kern_path_parent(9)
• vfs_path_parent_lookup(9)
• vfs_path_lookup(9)
• try_lookup_noperm(9)
• lookup_noperm(9)
• lookup_one(9)
• lookup_one_unlocked(9)
• lookup_one_positive_killable(9)
• lookup_one_positive_unlocked(9)
• lookup_noperm_unlocked(9)
• start_creating(9)
• start_removing(9)
• start_creating_killable(9)
• start_removing_killable(9)
• start_creating_noperm(9)
• start_removing_noperm(9)
• start_creating_dentry(9)
• start_removing_dentry(9)
• __start_renaming(9)
• start_renaming(9)
• start_renaming_dentry(9)
• start_renaming_two_dentries(9)
• vfs_prepare_mode(9)
• vfs_create(9)
• atomic_open(9)
• vfs_lookup_open(9)
• vfs_tmpfile(9)
• kernel_tmpfile_open(9)
• end_creating_path(9)
• dentry_create(9)
• vfs_mknod(9)
• vfs_mkdir(9)
• vfs_rmdir(9)
• vfs_unlink(9)
• vfs_symlink(9)
• vfs_link(9)
• vfs_rename(9)
• vfs_readlink(9)
• vfs_get_link(9)
• page_get_link(9)
• page_put_link(9)

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mwah 💋 — sourced from ./fs, dated October 2026. stan a pathwalk manual page. 🎀