path.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _LINUX_PATH_H
 3#define _LINUX_PATH_H
 4
 5struct dentry;
 6struct vfsmount;
 7
 8struct path {
 9	struct vfsmount *mnt;
10	struct dentry *dentry;
11} __randomize_layout;
12
13extern void path_get(const struct path *);
14extern void path_put(const struct path *);
15
16static inline int path_equal(const struct path *path1, const struct path *path2)
17{
18	return path1->mnt == path2->mnt && path1->dentry == path2->dentry;
19}
20
21/*
22 * Cleanup macro for use with __free(path_put). Avoids dereference and
23 * copying @path unlike DEFINE_FREE(). path_put() will handle the empty
24 * path correctly just ensure @path is initialized:
25 *
26 * struct path path __free(path_put) = {};
27 */
28#define __free_path_put path_put
29
30#endif  /* _LINUX_PATH_H */