diff options
| author | NeilBrown <neil@brown.name> | 2025-09-22 14:29:51 +1000 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-23 12:37:35 +0200 |
| commit | 76a53de6f7ff0641570364234fb4489f4d4fc8e9 (patch) | |
| tree | 26f7c0c389ada340201ab498f35241077552328d /include/linux | |
| parent | d7fb2c410240348edee7867c29b60688175dcc11 (diff) | |
VFS/audit: introduce kern_path_parent() for audit
audit_alloc_mark() and audit_get_nd() both need to perform a path
lookup getting the parent dentry (which must exist) and the final
target (following a LAST_NORM name) which sometimes doesn't need to
exist.
They don't need the parent to be locked, but use kern_path_locked() or
kern_path_locked_negative() anyway. This is somewhat misleading to the
casual reader.
This patch introduces a more targeted function, kern_path_parent(),
which returns not holding locks. On success the "path" will
be set to the parent, which must be found, and the return value is the
dentry of the target, which might be negative.
This will clear the way to rename kern_path_locked() which is
otherwise only used to prepare for removing something.
It also allows us to remove kern_path_locked_negative(), which is
transformed into the new kern_path_parent().
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/namei.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/namei.h b/include/linux/namei.h index 551a1a01e5e7..1d5038c21c20 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -57,12 +57,12 @@ struct dentry *lookup_one_qstr_excl(const struct qstr *name, struct dentry *base, unsigned int flags); extern int kern_path(const char *, unsigned, struct path *); +struct dentry *kern_path_parent(const char *name, struct path *parent); extern struct dentry *kern_path_create(int, const char *, struct path *, unsigned int); extern struct dentry *user_path_create(int, const char __user *, struct path *, unsigned int); extern void done_path_create(struct path *, struct dentry *); extern struct dentry *kern_path_locked(const char *, struct path *); -extern struct dentry *kern_path_locked_negative(const char *, struct path *); extern struct dentry *user_path_locked_at(int , const char __user *, struct path *); int vfs_path_parent_lookup(struct filename *filename, unsigned int flags, struct path *parent, struct qstr *last, int *type, |