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