kernel_tmpfile_open(9)

kernel_tmpfile_open(9) 💅

okay so like, welcome to this Kernel API Manual page, bestie! It's giving "I'm a kernel function and I'm iconic" energy. Let's get into it. 🫶

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🌸 NAME 🌸

kernel_tmpfile_open — open a tmpfile for kernel internal use, no cap 💅

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✨ SYNOPSIS ✨

struct file * kernel_tmpfile_open (struct mnt_idmap *idmap , const
       struct path *parentpath , umode_t mode , int open_flag , const struct
       cred *cred );

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🎀 ARGUMENTS 🎀

• idmap — the idmap of the mount where the inode was found, periodt.
• parentpath — the path of the base directory, like literally where u wanna be.
• mode — the mode of the new tmpfile, slay.
• open_flag — the flags, iykyk.
• cred — credentials for open, bestie. That's the vibe check.

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💖 DESCRIPTION 💖

Okay so here's the tea: this function creates and opens a temporary file. Easy enough, right?

But listen—the file is not accounted in nr_files. Not me being dramatic, but that means this is only for kernel internal use. And it must not be installed into file tables or such. Like, do not do it. That's the whole point, fr fr. 🙅‍♀️

⚠️ bestie please remember: kernel internal use ONLY. Do not put this in file tables. It's not that kind of party. 💀

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🔥 SEE ALSO 🔥

Kernel file ./fs/namei.c — and literally all of these iconic functions, 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(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), 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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Catch you later, bestie! This fab page is from ./fs, version October 2026, for kernel_tmpfile_open(9). Stay iconic. 💖✨🎀