Improved the interaction between job queue and manager. Partitions should now be mark busy correctly.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4223 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/disk_device_manager/KDiskDeviceManager.h

@@ -81,6 +81,7 @@ public:
 
 	// manager must be locked
 	status_t AddJobQueue(KDiskDeviceJobQueue *jobQueue);
+		// the device must be write locked
 	status_t RemoveJobQueue(KDiskDeviceJobQueue *jobQueue);
 	status_t DeleteJobQueue(KDiskDeviceJobQueue *jobQueue);
 		// called when the execution is done
@@ -89,6 +90,11 @@ public:
 
 	KDiskDeviceJobFactory *JobFactory() const;
 
+	// manager must *not* be locked
+	status_t UpdateBusyPartitions(KDiskDevice *device);
+	status_t UpdateJobStatus(KDiskDeviceJob *job, uint32 status,
+							 bool updateBusyPartitions);
+
 	// Disk Systems
 
 	// manager must be locked
@@ -118,8 +124,13 @@ private:
 
 	bool _RemoveJobQueue(KDiskDeviceJobQueue *jobQueue);
 
+	status_t _UpdateBusyPartitions(KDiskDevice *device);
+	status_t _UpdateJobStatus(KDiskDeviceJob *job, uint32 status,
+							  bool updateBusyPartitions);
+
 	status_t _Scan(const char *path);
 	status_t _ScanPartition(KPartition *partition);
+		// the manager must be locked and the device write locked
 
 	struct DeviceMap;
 	struct DiskSystemMap;