diff options
Diffstat (limited to 'include/linux/kernfs.h')
| -rw-r--r-- | include/linux/kernfs.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 5d5b7e94729..4520c86f5cb 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -38,6 +38,7 @@ enum kernfs_node_type { #define KERNFS_FLAG_MASK ~KERNFS_TYPE_MASK enum kernfs_node_flag { + KERNFS_ACTIVATED = 0x0010, KERNFS_NS = 0x0020, KERNFS_HAS_SEQ_SHOW = 0x0040, KERNFS_HAS_MMAP = 0x0080, @@ -47,6 +48,11 @@ enum kernfs_node_flag { KERNFS_SUICIDED = 0x0800, }; +/* @flags for kernfs_create_root() */ +enum kernfs_root_flag { + KERNFS_ROOT_CREATE_DEACTIVATED = 0x0001, +}; + /* type-specific structures for kernfs_node union members */ struct kernfs_elem_dir { unsigned long subdirs; @@ -128,6 +134,7 @@ struct kernfs_syscall_ops { struct kernfs_root { /* published fields */ struct kernfs_node *kn; + unsigned int flags; /* KERNFS_ROOT_* flags */ /* private fields, do not use outside kernfs proper */ struct ida ino_ida; @@ -223,7 +230,7 @@ void kernfs_get(struct kernfs_node *kn); void kernfs_put(struct kernfs_node *kn); struct kernfs_root *kernfs_create_root(struct kernfs_syscall_ops *scops, - void *priv); + unsigned int flags, void *priv); void kernfs_destroy_root(struct kernfs_root *root); struct kernfs_node *kernfs_create_dir_ns(struct kernfs_node *parent, @@ -239,6 +246,7 @@ struct kernfs_node *__kernfs_create_file(struct kernfs_node *parent, struct kernfs_node *kernfs_create_link(struct kernfs_node *parent, const char *name, struct kernfs_node *target); +void kernfs_activate(struct kernfs_node *kn); void kernfs_remove(struct kernfs_node *kn); void kernfs_break_active_protection(struct kernfs_node *kn); void kernfs_unbreak_active_protection(struct kernfs_node *kn); @@ -276,7 +284,8 @@ static inline void kernfs_get(struct kernfs_node *kn) { } static inline void kernfs_put(struct kernfs_node *kn) { } static inline struct kernfs_root * -kernfs_create_root(struct kernfs_syscall_ops *scops, void *priv) +kernfs_create_root(struct kernfs_syscall_ops *scops, unsigned int flags, + void *priv) { return ERR_PTR(-ENOSYS); } static inline void kernfs_destroy_root(struct kernfs_root *root) { } @@ -298,6 +307,8 @@ kernfs_create_link(struct kernfs_node *parent, const char *name, struct kernfs_node *target) { return ERR_PTR(-ENOSYS); } +static inline void kernfs_activate(struct kernfs_node *kn) { } + static inline void kernfs_remove(struct kernfs_node *kn) { } static inline bool kernfs_remove_self(struct kernfs_node *kn) |