| /* SPDX-License-Identifier: GPL-2.0 */ |
| * Persistent cookie-path mappings |
| * Copyright 2002 John Levon <levon@movementarian.org> |
| #include <linux/dcache.h> |
| * dcookie_register - register a user of dcookies |
| * Register as a dcookie user. Returns %NULL on failure. |
| struct dcookie_user * dcookie_register(void); |
| * dcookie_unregister - unregister a user of dcookies |
| * Unregister as a dcookie user. This may invalidate |
| * any dcookie values returned from get_dcookie(). |
| void dcookie_unregister(struct dcookie_user * user); |
| * get_dcookie - acquire a dcookie |
| * Convert the given dentry/vfsmount pair into |
| * Returns -EINVAL if no living task has registered as a |
| * Returns 0 on success, with *cookie filled in |
| int get_dcookie(const struct path *path, unsigned long *cookie); |
| static inline struct dcookie_user * dcookie_register(void) |
| static inline void dcookie_unregister(struct dcookie_user * user) |
| static inline int get_dcookie(const struct path *path, unsigned long *cookie) |
| #endif /* CONFIG_PROFILING */ |