144 struct ubd {  struct
145 	struct list_head restart;
148 	char *file;
149 	int count;
150 	int fd;
151 	__u64 size;
152 	struct openflags boot_openflags;
153 	struct openflags openflags;
154 	unsigned shared:1;
155 	unsigned no_cow:1;
156 	struct cow cow;
157 	struct platform_device pdev;
158 	struct request_queue *queue;
159 	spinlock_t lock;
160 	struct scatterlist sg[MAX_SG];
184 	.lock =			__SPIN_LOCK_UNLOCKED(ubd_devs.lock), \  argument
501 	struct ubd *ubd;  in ubd_handler()  local