diff options
Diffstat (limited to 'kernel/include/linux/namei.h')
-rw-r--r-- | kernel/include/linux/namei.h | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/kernel/include/linux/namei.h b/kernel/include/linux/namei.h index c8990779f..d8c6334cd 100644 --- a/kernel/include/linux/namei.h +++ b/kernel/include/linux/namei.h @@ -1,16 +1,15 @@ #ifndef _LINUX_NAMEI_H #define _LINUX_NAMEI_H -#include <linux/dcache.h> -#include <linux/errno.h> -#include <linux/linkage.h> +#include <linux/kernel.h> #include <linux/path.h> - -struct vfsmount; -struct nameidata; +#include <linux/fcntl.h> +#include <linux/errno.h> enum { MAX_NESTED_LINKS = 8 }; +#define MAXSYMLINKS 40 + /* * Type of the last component on LOOKUP_PARENT */ @@ -45,13 +44,29 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; #define LOOKUP_ROOT 0x2000 #define LOOKUP_EMPTY 0x4000 -extern int user_path_at(int, const char __user *, unsigned, struct path *); extern int user_path_at_empty(int, const char __user *, unsigned, struct path *, int *empty); -#define user_path(name, path) user_path_at(AT_FDCWD, name, LOOKUP_FOLLOW, path) -#define user_lpath(name, path) user_path_at(AT_FDCWD, name, 0, path) -#define user_path_dir(name, path) \ - user_path_at(AT_FDCWD, name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, path) +static inline int user_path_at(int dfd, const char __user *name, unsigned flags, + struct path *path) +{ + return user_path_at_empty(dfd, name, flags, path, NULL); +} + +static inline int user_path(const char __user *name, struct path *path) +{ + return user_path_at_empty(AT_FDCWD, name, LOOKUP_FOLLOW, path, NULL); +} + +static inline int user_lpath(const char __user *name, struct path *path) +{ + return user_path_at_empty(AT_FDCWD, name, 0, path, NULL); +} + +static inline int user_path_dir(const char __user *name, struct path *path) +{ + return user_path_at_empty(AT_FDCWD, name, + LOOKUP_FOLLOW | LOOKUP_DIRECTORY, path, NULL); +} extern int kern_path(const char *, unsigned, struct path *); @@ -70,9 +85,7 @@ extern int follow_up(struct path *); extern struct dentry *lock_rename(struct dentry *, struct dentry *); extern void unlock_rename(struct dentry *, struct dentry *); -extern void nd_jump_link(struct nameidata *nd, struct path *path); -extern void nd_set_link(struct nameidata *nd, char *path); -extern char *nd_get_link(struct nameidata *nd); +extern void nd_jump_link(struct path *path); static inline void nd_terminate_link(void *name, size_t len, size_t maxlen) { |