A quick question, shouldn't there be dummy definitions for the EXPORT_SYMBOL-s? So that external modules can be modprobed and used.
Some of posix_acl exported symbols have dummy definitions, others don't. E.g. posix_acl_create() is exported symbol and it's defined for both FS_POSIX_ACL and !FS_POSIX_ACL. While exported set_posix_acl() is defined only for FS_POSIX_ACL config. --- diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 90797f1b421d..8a6c77a69761 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -59,19 +59,19 @@ posix_acl_release(struct posix_acl *acl) /* posix_acl.c */ +extern int posix_acl_permission(struct inode *, const struct posix_acl *, int); + +extern struct posix_acl *get_posix_acl(struct inode *, int); + +#ifdef CONFIG_FS_POSIX_ACL extern void posix_acl_init(struct posix_acl *, int); extern struct posix_acl *posix_acl_alloc(int, gfp_t); -extern int posix_acl_valid(struct user_namespace *, const struct posix_acl *); -extern int posix_acl_permission(struct inode *, const struct posix_acl *, int); -extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t); extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *); +extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t); extern int __posix_acl_create(struct posix_acl **, gfp_t, umode_t *); extern int __posix_acl_chmod(struct posix_acl **, gfp_t, umode_t); - -extern struct posix_acl *get_posix_acl(struct inode *, int); extern int set_posix_acl(struct inode *, int, struct posix_acl *); - -#ifdef CONFIG_FS_POSIX_ACL +extern int posix_acl_valid(struct user_namespace *, const struct posix_acl *); extern int posix_acl_chmod(struct inode *, umode_t); extern int posix_acl_create(struct inode *, umode_t *, struct posix_acl **, struct posix_acl **); @@ -91,18 +91,61 @@ static inline void cache_no_acl(struct inode *inode) inode->i_acl = NULL; inode->i_default_acl = NULL; } + +struct posix_acl *get_acl(struct inode *inode, int type); #else +static inline void posix_acl_init(struct posix_acl *, int) +{ +} + +static inline struct posix_acl *posix_acl_alloc(int, gfp_t) +{ + return NULL; +} + +static inline int posix_acl_valid(struct user_namespace *, + const struct posix_acl *) +{ + return 0; +} + +static inline int posix_acl_equiv_mode(const struct posix_acl *, umode_t *) +{ + return 0; +} + +static inline struct posix_acl *posix_acl_from_mode(umode_t, gfp_t) +{ + return NULL; +} + static inline int posix_acl_chmod(struct inode *inode, umode_t mode) { return 0; } +static inline int set_posix_acl(struct inode *, int, struct posix_acl *) +{ + return 0; +} + #define simple_set_acl NULL static inline int simple_acl_create(struct inode *dir, struct inode *inode) { return 0; } + +static inline int __posix_acl_create(struct posix_acl **, gfp_t, umode_t *) +{ + return 0; +} + +static inline int __posix_acl_chmod(struct posix_acl **, gfp_t, umode_t) +{ + return 0; +} + static inline void cache_no_acl(struct inode *inode) { } @@ -117,8 +160,38 @@ static inline int posix_acl_create(struct inode *inode, umode_t *mode, static inline void forget_all_cached_acls(struct inode *inode) { } + +static inline struct posix_acl *get_cached_acl(struct inode *inode, int type) +{ + return NULL; +} + +static inline struct posix_acl *get_cached_acl_rcu(struct inode *inode, + int type) +{ + return NULL; +} + +static inline void set_cached_acl(struct inode *inode, int type, + struct posix_acl *acl) +{ +} + +static inline void forget_cached_acl(struct inode *inode, int type) +{ +} + +static inline struct posix_acl *get_acl(struct inode *inode, int type) +{ + return NULL; +} + +static inline int posix_acl_update_mode(struct inode *, umode_t *, + struct posix_acl **) +{ + return 0; +} #endif /* CONFIG_FS_POSIX_ACL */ -struct posix_acl *get_acl(struct inode *inode, int type); #endif /* __LINUX_POSIX_ACL_H */