diff options
Diffstat (limited to 'drivers/md/dm.h')
| -rw-r--r-- | drivers/md/dm.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h index 1ab2028559ca..c4569f02f50f 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -16,6 +16,7 @@ #include <linux/blkdev.h> #include <linux/hdreg.h> #include <linux/completion.h> +#include <linux/kobject.h> #include "dm-stats.h" @@ -149,11 +150,25 @@ void dm_interface_exit(void); /* * sysfs interface */ +struct dm_kobject_holder { + struct kobject kobj; + struct completion completion; +}; + +static inline struct completion *dm_get_completion_from_kobject(struct kobject *kobj) +{ + return &container_of(kobj, struct dm_kobject_holder, kobj)->completion; +} + int dm_sysfs_init(struct mapped_device *md); void dm_sysfs_exit(struct mapped_device *md); struct kobject *dm_kobject(struct mapped_device *md); struct mapped_device *dm_get_from_kobject(struct kobject *kobj); -struct completion *dm_get_completion_from_kobject(struct kobject *kobj); + +/* + * The kobject helper + */ +void dm_kobject_release(struct kobject *kobj); /* * Targets for linear and striped mappings |