4 * Persistent cookie-path mappings
6 * Copyright 2002 John Levon <levon@movementarian.org>
13 #ifdef CONFIG_PROFILING
15 #include <linux/dcache.h>
16 #include <linux/types.h>
22 * dcookie_register - register a user of dcookies
24 * Register as a dcookie user. Returns %NULL on failure.
26 struct dcookie_user
* dcookie_register(void);
29 * dcookie_unregister - unregister a user of dcookies
31 * Unregister as a dcookie user. This may invalidate
32 * any dcookie values returned from get_dcookie().
34 void dcookie_unregister(struct dcookie_user
* user
);
37 * get_dcookie - acquire a dcookie
39 * Convert the given dentry/vfsmount pair into
42 * Returns -EINVAL if no living task has registered as a
45 * Returns 0 on success, with *cookie filled in
47 int get_dcookie(struct path
*path
, unsigned long *cookie
);
51 static inline struct dcookie_user
* dcookie_register(void)
56 static inline void dcookie_unregister(struct dcookie_user
* user
)
61 static inline int get_dcookie(struct path
*path
, unsigned long *cookie
)
66 #endif /* CONFIG_PROFILING */
68 #endif /* DCOOKIES_H */
This page took 0.031038 seconds and 5 git commands to generate.