861 static bool rbd_dev_ondisk_valid(struct rbd_image_header_ondisk *ondisk)  in rbd_dev_ondisk_valid()  argument
867 	if (memcmp(&ondisk->text, RBD_HEADER_TEXT, sizeof (RBD_HEADER_TEXT)))  in rbd_dev_ondisk_valid()
872 	if (ondisk->options.order < SECTOR_SHIFT)  in rbd_dev_ondisk_valid()
877 	if (ondisk->options.order > 8 * sizeof (int) - 1)  in rbd_dev_ondisk_valid()
884 	snap_count = le32_to_cpu(ondisk->snap_count);  in rbd_dev_ondisk_valid()
894 	if ((u64) size < le64_to_cpu(ondisk->snap_names_len))  in rbd_dev_ondisk_valid()
905 				 struct rbd_image_header_ondisk *ondisk)  in rbd_header_from_disk()  argument
923 		len = strnlen(ondisk->object_prefix,  in rbd_header_from_disk()
924 				sizeof (ondisk->object_prefix));  in rbd_header_from_disk()
928 		memcpy(object_prefix, ondisk->object_prefix, len);  in rbd_header_from_disk()
934 	snap_count = le32_to_cpu(ondisk->snap_count);  in rbd_header_from_disk()
938 	snapc->seq = le64_to_cpu(ondisk->snap_seq);  in rbd_header_from_disk()
941 		u64 snap_names_len = le64_to_cpu(ondisk->snap_names_len);  in rbd_header_from_disk()
967 		memcpy(snap_names, &ondisk->snaps[snap_count], snap_names_len);  in rbd_header_from_disk()
968 		snaps = ondisk->snaps;  in rbd_header_from_disk()
979 		header->obj_order = ondisk->options.order;  in rbd_header_from_disk()
980 		header->crypt_type = ondisk->options.crypt_type;  in rbd_header_from_disk()
981 		header->comp_type = ondisk->options.comp_type;  in rbd_header_from_disk()
994 	header->image_size = le64_to_cpu(ondisk->image_size);  in rbd_header_from_disk()
3563 	struct rbd_image_header_ondisk *ondisk = NULL;  in rbd_dev_v1_header_info()  local
3579 		kfree(ondisk);  in rbd_dev_v1_header_info()
3581 		size = sizeof (*ondisk);  in rbd_dev_v1_header_info()
3584 		ondisk = kmalloc(size, GFP_KERNEL);  in rbd_dev_v1_header_info()
3585 		if (!ondisk)  in rbd_dev_v1_header_info()
3589 				       0, size, ondisk);  in rbd_dev_v1_header_info()
3598 		if (!rbd_dev_ondisk_valid(ondisk)) {  in rbd_dev_v1_header_info()
3604 		names_size = le64_to_cpu(ondisk->snap_names_len);  in rbd_dev_v1_header_info()
3606 		snap_count = le32_to_cpu(ondisk->snap_count);  in rbd_dev_v1_header_info()
3609 	ret = rbd_header_from_disk(rbd_dev, ondisk);  in rbd_dev_v1_header_info()
3611 	kfree(ondisk);  in rbd_dev_v1_header_info()