* Added functions FindPartitionByVolume() and FindPartitionByMountPoint()

that conveniently bridge BVolumes/mount points with BPartitions.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28346 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/storage/DiskDeviceRoster.h

@@ -18,6 +18,7 @@ class BDiskDeviceVisitor;
 class BDiskScannerPartitionAddOn;
 class BDiskSystem;
 class BPartition;
+class BVolume;
 
 namespace BPrivate {
 	class AddOnImage;
@@ -115,6 +116,13 @@ public:
 								BDiskDevice* device = NULL,
 								BPartition** _partition = NULL);
 
+			status_t		FindPartitionByVolume(BVolume* volume,
+								BDiskDevice* device,
+								BPartition** _partition);
+			status_t		FindPartitionByMountPoint(const char* mountPoint,
+								BDiskDevice* device,
+								BPartition** _partition);
+
 			status_t		GetDeviceWithID(partition_id id,
 								BDiskDevice* device) const;
 			status_t		GetPartitionWithID(partition_id id,