+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,11,0))
+
+#define LTTNG_PART_STRUCT_TYPE struct block_device
+
+static
+int lttng_get_part_name(struct gendisk *disk, struct block_device *part, char *name_buf)
+{
+ const char *p;
+
+ p = bdevname(part, name_buf);
+ if (!p)
+ return -ENOSYS;
+
+ return 0;
+}
+
+static
+dev_t lttng_get_part_devt(struct block_device *part)
+{
+ return part->bd_dev;
+}
+
+#else
+
+#define LTTNG_PART_STRUCT_TYPE struct hd_struct
+
+static
+int lttng_get_part_name(struct gendisk *disk, struct hd_struct *part, char *name_buf)
+{
+ const char *p;
+ struct block_device bdev;
+
+ /*
+ * Create a partial 'struct blockdevice' to use
+ * 'bdevname()' which is a simple wrapper over
+ * 'disk_name()' but has the honor to be EXPORT_SYMBOL.
+ */
+ bdev.bd_disk = disk;
+ bdev.bd_part = part;
+
+ p = bdevname(&bdev, name_buf);
+ if (!p)
+ return -ENOSYS;
+
+ return 0;
+}
+
+static
+dev_t lttng_get_part_devt(struct hd_struct *part)
+{
+ return part_devt(part);
+}
+#endif
+