From 7996a3d79d55b7f879dfd62e202bbfe2963718d3 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sat, 27 Jul 2013 22:15:01 +0000 Subject: really properly move files --- libdde-linux26/contrib/include/linux/dcookies.h | 68 +++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 libdde-linux26/contrib/include/linux/dcookies.h (limited to 'libdde-linux26/contrib/include/linux/dcookies.h') diff --git a/libdde-linux26/contrib/include/linux/dcookies.h b/libdde-linux26/contrib/include/linux/dcookies.h new file mode 100644 index 00000000..24c806f1 --- /dev/null +++ b/libdde-linux26/contrib/include/linux/dcookies.h @@ -0,0 +1,68 @@ +/* + * dcookies.h + * + * Persistent cookie-path mappings + * + * Copyright 2002 John Levon + */ + +#ifndef DCOOKIES_H +#define DCOOKIES_H + + +#ifdef CONFIG_PROFILING + +#include +#include +#include + +struct dcookie_user; + +/** + * 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 + * a cookie value. + * + * Returns -EINVAL if no living task has registered as a + * dcookie user. + * + * Returns 0 on success, with *cookie filled in + */ +int get_dcookie(struct path *path, unsigned long *cookie); + +#else + +static inline struct dcookie_user * dcookie_register(void) +{ + return NULL; +} + +static inline void dcookie_unregister(struct dcookie_user * user) +{ + return; +} + +static inline int get_dcookie(struct path *path, unsigned long *cookie) +{ + return -ENOSYS; +} + +#endif /* CONFIG_PROFILING */ + +#endif /* DCOOKIES_H */ -- cgit v1.2.3