diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 12 | ||||
| -rw-r--r-- | include/linux/firmware.h | 1 | ||||
| -rw-r--r-- | include/linux/kobject.h | 38 | ||||
| -rw-r--r-- | include/linux/kref.h | 1 | ||||
| -rw-r--r-- | include/linux/lockdep.h | 8 | ||||
| -rw-r--r-- | include/linux/netlink.h | 4 | ||||
| -rw-r--r-- | include/linux/ramfs.h | 2 | ||||
| -rw-r--r-- | include/linux/sysfs.h | 26 |
8 files changed, 83 insertions, 9 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 241b96bcd7a..7bb9f426f3e 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -22,7 +22,6 @@ #include <linux/types.h> #include <linux/module.h> #include <linux/pm.h> -#include <linux/semaphore.h> #include <asm/atomic.h> #include <asm/device.h> @@ -203,6 +202,9 @@ struct class { int (*suspend)(struct device *dev, pm_message_t state); int (*resume)(struct device *dev); + const struct kobj_ns_type_operations *ns_type; + const void *(*namespace)(struct device *dev); + const struct dev_pm_ops *pm; struct class_private *p; @@ -404,7 +406,7 @@ struct device { const char *init_name; /* initial name of the device */ struct device_type *type; - struct semaphore sem; /* semaphore to synchronize calls to + struct mutex mutex; /* mutex to synchronize calls to * its driver. */ @@ -514,17 +516,17 @@ static inline bool device_async_suspend_enabled(struct device *dev) static inline void device_lock(struct device *dev) { - down(&dev->sem); + mutex_lock(&dev->mutex); } static inline int device_trylock(struct device *dev) { - return down_trylock(&dev->sem); + return mutex_trylock(&dev->mutex); } static inline void device_unlock(struct device *dev) { - up(&dev->sem); + mutex_unlock(&dev->mutex); } void driver_init(void); diff --git a/include/linux/firmware.h b/include/linux/firmware.h index 043811f0d27..53d1e6c4f84 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -12,6 +12,7 @@ struct firmware { size_t size; const u8 *data; + struct page **pages; }; struct device; diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 3950d3c2850..cf343a85253 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -108,6 +108,8 @@ struct kobj_type { void (*release)(struct kobject *kobj); const struct sysfs_ops *sysfs_ops; struct attribute **default_attrs; + const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj); + const void *(*namespace)(struct kobject *kobj); }; struct kobj_uevent_env { @@ -134,6 +136,42 @@ struct kobj_attribute { extern const struct sysfs_ops kobj_sysfs_ops; +/* + * Namespace types which are used to tag kobjects and sysfs entries. + * Network namespace will likely be the first. + */ +enum kobj_ns_type { + KOBJ_NS_TYPE_NONE = 0, + KOBJ_NS_TYPE_NET, + KOBJ_NS_TYPES +}; + +struct sock; + +/* + * Callbacks so sysfs can determine namespaces + * @current_ns: return calling task's namespace + * @netlink_ns: return namespace to which a sock belongs (right?) + * @initial_ns: return the initial namespace (i.e. init_net_ns) + */ +struct kobj_ns_type_operations { + enum kobj_ns_type type; + const void *(*current_ns)(void); + const void *(*netlink_ns)(struct sock *sk); + const void *(*initial_ns)(void); +}; + +int kobj_ns_type_register(const struct kobj_ns_type_operations *ops); +int kobj_ns_type_registered(enum kobj_ns_type type); +const struct kobj_ns_type_operations *kobj_child_ns_ops(struct kobject *parent); +const struct kobj_ns_type_operations *kobj_ns_ops(struct kobject *kobj); + +const void *kobj_ns_current(enum kobj_ns_type type); +const void *kobj_ns_netlink(enum kobj_ns_type type, struct sock *sk); +const void *kobj_ns_initial(enum kobj_ns_type type); +void kobj_ns_exit(enum kobj_ns_type type, const void *ns); + + /** * struct kset - a set of kobjects of a specific type, belonging to a specific subsystem. * diff --git a/include/linux/kref.h b/include/linux/kref.h index baf4b9e4b19..6cc38fc07ab 100644 --- a/include/linux/kref.h +++ b/include/linux/kref.h @@ -21,7 +21,6 @@ struct kref { atomic_t refcount; }; -void kref_set(struct kref *kref, int num); void kref_init(struct kref *kref); void kref_get(struct kref *kref); int kref_put(struct kref *kref, void (*release) (struct kref *kref)); diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index a03977a96d7..06aed8305bf 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -44,6 +44,8 @@ struct lock_class_key { struct lockdep_subclass_key subkeys[MAX_LOCKDEP_SUBCLASSES]; }; +extern struct lock_class_key __lockdep_no_validate__; + #define LOCKSTAT_POINTS 4 /* @@ -270,6 +272,9 @@ extern void lockdep_init_map(struct lockdep_map *lock, const char *name, #define lockdep_set_subclass(lock, sub) \ lockdep_init_map(&(lock)->dep_map, #lock, \ (lock)->dep_map.key, sub) + +#define lockdep_set_novalidate_class(lock) \ + lockdep_set_class(lock, &__lockdep_no_validate__) /* * Compare locking classes */ @@ -354,6 +359,9 @@ static inline void lockdep_on(void) #define lockdep_set_class_and_subclass(lock, key, sub) \ do { (void)(key); } while (0) #define lockdep_set_subclass(lock, sub) do { } while (0) + +#define lockdep_set_novalidate_class(lock) do { } while (0) + /* * We don't define lockdep_match_class() and lockdep_match_key() for !LOCKDEP * case since the result is not well defined and the caller should rather diff --git a/include/linux/netlink.h b/include/linux/netlink.h index 6eaca5e1e8c..59d066936ab 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -188,6 +188,10 @@ extern int netlink_has_listeners(struct sock *sk, unsigned int group); extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock); extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 pid, __u32 group, gfp_t allocation); +extern int netlink_broadcast_filtered(struct sock *ssk, struct sk_buff *skb, + __u32 pid, __u32 group, gfp_t allocation, + int (*filter)(struct sock *dsk, struct sk_buff *skb, void *data), + void *filter_data); extern int netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code); extern int netlink_register_notifier(struct notifier_block *nb); extern int netlink_unregister_notifier(struct notifier_block *nb); diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h index 4e768dda87b..8600508c77a 100644 --- a/include/linux/ramfs.h +++ b/include/linux/ramfs.h @@ -20,4 +20,6 @@ extern const struct file_operations ramfs_file_operations; extern const struct vm_operations_struct generic_file_vm_ops; extern int __init init_rootfs(void); +int ramfs_fill_super(struct super_block *sb, void *data, int silent); + #endif diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index f0496b3d181..f2694eb4dd3 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -20,6 +20,7 @@ struct kobject; struct module; +enum kobj_ns_type; /* FIXME * The *owner field is no longer used. @@ -86,17 +87,18 @@ struct attribute_group { #define attr_name(_attr) (_attr).attr.name +struct file; struct vm_area_struct; struct bin_attribute { struct attribute attr; size_t size; void *private; - ssize_t (*read)(struct kobject *, struct bin_attribute *, + ssize_t (*read)(struct file *, struct kobject *, struct bin_attribute *, char *, loff_t, size_t); - ssize_t (*write)(struct kobject *, struct bin_attribute *, + ssize_t (*write)(struct file *,struct kobject *, struct bin_attribute *, char *, loff_t, size_t); - int (*mmap)(struct kobject *, struct bin_attribute *attr, + int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr, struct vm_area_struct *vma); }; @@ -154,6 +156,9 @@ void sysfs_remove_link(struct kobject *kobj, const char *name); int sysfs_rename_link(struct kobject *kobj, struct kobject *target, const char *old_name, const char *new_name); +void sysfs_delete_link(struct kobject *dir, struct kobject *targ, + const char *name); + int __must_check sysfs_create_group(struct kobject *kobj, const struct attribute_group *grp); int sysfs_update_group(struct kobject *kobj, @@ -168,10 +173,15 @@ void sysfs_remove_file_from_group(struct kobject *kobj, void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr); void sysfs_notify_dirent(struct sysfs_dirent *sd); struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, + const void *ns, const unsigned char *name); struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd); void sysfs_put(struct sysfs_dirent *sd); void sysfs_printk_last_file(void); + +/* Called to clear a ns tag when it is no longer valid */ +void sysfs_exit_ns(enum kobj_ns_type type, const void *tag); + int __must_check sysfs_init(void); #else /* CONFIG_SYSFS */ @@ -264,6 +274,11 @@ static inline int sysfs_rename_link(struct kobject *k, struct kobject *t, return 0; } +static inline void sysfs_delete_link(struct kobject *k, struct kobject *t, + const char *name) +{ +} + static inline int sysfs_create_group(struct kobject *kobj, const struct attribute_group *grp) { @@ -301,6 +316,7 @@ static inline void sysfs_notify_dirent(struct sysfs_dirent *sd) } static inline struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, + const void *ns, const unsigned char *name) { return NULL; @@ -313,6 +329,10 @@ static inline void sysfs_put(struct sysfs_dirent *sd) { } +static inline void sysfs_exit_ns(int type, const void *tag) +{ +} + static inline int __must_check sysfs_init(void) { return 0; |