open_ubd_file     756 arch/um/drivers/ubd_kern.c 	fd = open_ubd_file(cow_file, &flags, 0, NULL, NULL, NULL, NULL, NULL);
open_ubd_file     797 arch/um/drivers/ubd_kern.c 	fd = open_ubd_file(ubd_dev->file, &ubd_dev->openflags, ubd_dev->shared,
open_ubd_file     840 arch/um/drivers/ubd_kern.c 		err = open_ubd_file(ubd_dev->cow.file, &flags, ubd_dev->shared, NULL,