Added helper function get_default_partition_content_name() that can be

used by file systems to get a useful name, if the file system (or just
that specific volume) doesn't have one.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26403 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/drivers/disk_device_manager.h

@@ -114,6 +114,12 @@ status_t scan_partition(partition_id partitionID);
 	// Service method for disks systems: Synchronously scans the partition.
 	// Device must not be locked.
 
+// partition support functions
+// (no lock required)
+status_t get_default_partition_content_name(partition_id partitionID,
+		const char* fileSystemName, char* buffer, size_t bufferSize);
+	// The partition_data::content_size field must already be initialized.
+
 // disk systems
 disk_system_id find_disk_system(const char *name);