kernel/disk_device_manager/KDiskDeviceManager.cpp

71 	inline partition_id operator()(const KPartition* partition) const
73 		return partition->ID();
298 			TRACE("         partition: %" B_PRId32 "\n", it->Value()->ID());
306 			TRACE("         partition: %" B_PRId32 "\n", (*it)->ID());
417 	if (KPartition* partition = FindPartition(id)) {
418 		KDiskDevice* device = partition->Device();
436 		KPartition* partition = iterator->Value();
437 		if (partition->GetPath(&partitionPath) == B_OK
439 			return partition;
527 			if (KPartition* partition = FindPartition(path)) {
528 				partition->Register();
529 				return partition;
547 		if (KPartition* partition = FindPartition(id)) {
548 			partition->Register();
549 			return partition;
602 	// register partition
603 	KPartition* partition = RegisterPartition(id);
604 	if (!partition)
609 		device = partition->Device();
615 		// final check, if the partition still belongs to the device
616 		if (partition->Device() == device)
617 			return partition;
623 	partition->Unregister();
631 	// register partition
632 	KPartition* partition = RegisterPartition(id);
633 	if (!partition)
638 		device = partition->Device();
644 		// final check, if the partition still belongs to the device
645 		if (partition->Device() == device)
646 			return partition;
652 	partition->Unregister();
658 KDiskDeviceManager::ScanPartition(KPartition* partition)
660 // TODO: This won't do. Locking the DDM while scanning the partition is not a
661 // good idea. Even locking the device doesn't feel right. Marking the partition
664 	if (DeviceWriteLocker deviceLocker = partition->Device()) {
666 			return _ScanPartition(partition, false);
863 KDiskDeviceManager::PartitionAdded(KPartition* partition)
865 	return partition && fPartitions->Put(partition->ID(), partition) == B_OK;
870 KDiskDeviceManager::PartitionRemoved(KPartition* partition)
872 	if (partition && partition->PrepareForRemoval()
873 		&& fPartitions->Remove(partition->ID())) {
874 		// TODO: If adding the partition to the obsolete list fails (due to lack
876 		fObsoletePartitions->Insert(partition);
877 		partition->MarkObsolete();
885 KDiskDeviceManager::DeletePartition(KPartition* partition)
887 	if (partition && partition->IsObsolete()
888 		&& partition->CountReferences() == 0
889 		&& partition->PrepareForDeletion()
890 		&& fObsoletePartitions->Remove(partition)) {
891 		delete partition;
1012 				// Even if we could not scan this partition, we want to try
1013 				// and scan the rest. Just because one partition is invalid
1204 		virtual bool VisitPre(KPartition *partition)
1206 			partition->ClearFlags(B_PARTITION_BUSY
1224 			KPartition *partition = FindPartition(job->ScopeID());
1225 			if (!partition || partition->Device() != device)
1227 			partition->AddFlags(B_PARTITION_BUSY);
1233 		virtual bool VisitPre(KPartition *partition)
1236 			if (partition->Parent() && partition->Parent()->IsBusy())
1237 				partition->AddFlags(B_PARTITION_BUSY);
1241 		virtual bool VisitPost(KPartition *partition)
1244 			if ((partition->IsBusy() || partition->IsDescendantBusy())
1245 				&& partition->Parent()) {
1246 				partition->Parent()->AddFlags(B_PARTITION_DESCENDANT_BUSY);
1319 KDiskDeviceManager::_ScanPartition(KPartition* partition, bool async,
1323 	if (!partition)
1333 		jobQueue->SetDevice(partition->Device());
1336 		KDiskDeviceJob *job = fJobFactory->CreateScanPartitionJob(partition->ID());
1359 	return _ScanPartition(partition, restrictScan);
1364 KDiskDeviceManager::_ScanPartition(KPartition* partition,
1367 	// the partition's device must be write-locked
1368 	if (partition == NULL)
1370 	if (!partition->Device()->HasMedia() || partition->IsMounted())
1373 	if (partition->CountChildren() > 0) {
1374 		// Since this partition has already children, we don't scan it
1376 		for (int32 i = 0; KPartition* child = partition->ChildAt(i); i++) {
1383 	partition->GetPath(&partitionPath);
1386 	// Just ignore the partition...
1387 	if (partition->Offset() < 0 || partition->BlockSize() == 0
1388 		|| partition->Size() <= 0) {
1396 	// publish the partition
1398 	if (!partition->IsPublished()) {
1399 		error = partition->PublishDevice();
1408 	// find the disk system that returns the best priority for this partition
1409 	float bestPriority = partition->DiskSystemPriority();
1421 		float priority = diskSystem->Identify(partition, &cookie);
1428 				bestDiskSystem->FreeIdentifyCookie(partition, bestCookie);
1435 			// disk system doesn't identify the partition or worse than our
1438 				diskSystem->FreeIdentifyCookie(partition, cookie);
1443 	// now, if we have found a disk system, let it scan the partition
1446 		error = bestDiskSystem->Scan(partition, bestCookie);
1447 		bestDiskSystem->FreeIdentifyCookie(partition, bestCookie);
1449 			partition->SetDiskSystem(bestDiskSystem, bestPriority);
1450 			for (int32 i = 0; KPartition* child = partition->ChildAt(i); i++)
1458 		// the partition(s) and thus will not really be unloaded