2 * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
3 * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
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7 * modification, are permitted provided that the following conditions
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36 // File: AFSWorker.cpp
39 #include "AFSCommon.h"
42 // Function: AFSInitializeWorkerPool
46 // This function initializes the worker thread pool
50 // A status is returned for the function
54 AFSInitializeWorkerPool()
57 NTSTATUS ntStatus = STATUS_SUCCESS;
58 AFSWorkQueueContext *pCurrentWorker = NULL, *pLastWorker = NULL;
59 AFSDeviceExt *pDevExt = NULL;
64 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
67 // Initialize the worker threads.
70 pDevExt->Specific.Library.WorkerCount = 0;
72 KeInitializeEvent( &pDevExt->Specific.Library.WorkerQueueHasItems,
77 // Initialize the queue resource
80 ExInitializeResourceLite( &pDevExt->Specific.Library.QueueLock);
82 while( pDevExt->Specific.Library.WorkerCount < AFS_WORKER_COUNT)
85 pCurrentWorker = (AFSWorkQueueContext *)AFSLibExAllocatePoolWithTag( NonPagedPool,
86 sizeof( AFSWorkQueueContext),
89 if( pCurrentWorker == NULL)
92 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
93 AFS_TRACE_LEVEL_ERROR,
94 "AFSInitializeWorkerPool Failed to allocate worker context\n");
96 ntStatus = STATUS_INSUFFICIENT_RESOURCES;
101 RtlZeroMemory( pCurrentWorker,
102 sizeof( AFSWorkQueueContext));
104 ntStatus = AFSInitWorkerThread( pCurrentWorker,
105 (PKSTART_ROUTINE)AFSWorkerThread);
107 if( !NT_SUCCESS( ntStatus))
110 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
111 AFS_TRACE_LEVEL_ERROR,
112 "AFSInitializeWorkerPool Failed to initialize worker thread Status %08lX\n", ntStatus);
114 ExFreePool( pCurrentWorker);
119 if( pDevExt->Specific.Library.PoolHead == NULL)
122 pDevExt->Specific.Library.PoolHead = pCurrentWorker;
127 pLastWorker->fLink = pCurrentWorker;
130 pLastWorker = pCurrentWorker;
132 pDevExt->Specific.Library.WorkerCount++;
136 // If there was a failure but there is at least one worker, then go with it.
139 if( !NT_SUCCESS( ntStatus) &&
140 pDevExt->Specific.Library.WorkerCount == 0)
143 try_return( ntStatus);
146 ntStatus = STATUS_SUCCESS;
149 // Now our IO Worker queue
152 pDevExt->Specific.Library.IOWorkerCount = 0;
154 KeInitializeEvent( &pDevExt->Specific.Library.IOWorkerQueueHasItems,
155 SynchronizationEvent,
159 // Initialize the queue resource
162 ExInitializeResourceLite( &pDevExt->Specific.Library.IOQueueLock);
164 while( pDevExt->Specific.Library.IOWorkerCount < AFS_IO_WORKER_COUNT)
167 pCurrentWorker = (AFSWorkQueueContext *)AFSLibExAllocatePoolWithTag( NonPagedPool,
168 sizeof( AFSWorkQueueContext),
171 if( pCurrentWorker == NULL)
174 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
175 AFS_TRACE_LEVEL_ERROR,
176 "AFSInitializeWorkerPool Failed to allocate IO worker context\n");
178 ntStatus = STATUS_INSUFFICIENT_RESOURCES;
183 RtlZeroMemory( pCurrentWorker,
184 sizeof( AFSWorkQueueContext));
186 ntStatus = AFSInitWorkerThread( pCurrentWorker,
187 (PKSTART_ROUTINE)AFSIOWorkerThread);
189 if( !NT_SUCCESS( ntStatus))
192 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
193 AFS_TRACE_LEVEL_ERROR,
194 "AFSInitializeWorkerPool Failed to initialize IO worker thread Status %08lX\n", ntStatus);
196 ExFreePool( pCurrentWorker);
201 if( pDevExt->Specific.Library.IOPoolHead == NULL)
204 pDevExt->Specific.Library.IOPoolHead = pCurrentWorker;
209 pLastWorker->fLink = pCurrentWorker;
212 pLastWorker = pCurrentWorker;
214 pDevExt->Specific.Library.IOWorkerCount++;
218 // If there was a failure but there is at least one worker, then go with it.
221 if( !NT_SUCCESS( ntStatus) &&
222 pDevExt->Specific.Library.IOWorkerCount == 0)
225 try_return( ntStatus);
230 if( !NT_SUCCESS( ntStatus))
234 // Failed to initialize the pool so tear it down
237 AFSRemoveWorkerPool();
245 // Function: AFSRemoveWorkerPool
249 // This function tears down the worker thread pool
253 // A status is returned for the function
257 AFSRemoveWorkerPool()
260 NTSTATUS ntStatus = STATUS_SUCCESS;
262 AFSWorkQueueContext *pCurrentWorker = NULL, *pNextWorker = NULL;
263 AFSDeviceExt *pDevExt = NULL;
265 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
268 // Loop through the workers shutting them down in two stages.
269 // First, clear AFS_WORKER_PROCESS_REQUESTS so that workers
270 // stop processing requests. Second, call AFSShutdownWorkerThread()
271 // to wake the workers and wait for them to exit.
274 pCurrentWorker = pDevExt->Specific.Library.PoolHead;
276 while( index < pDevExt->Specific.Library.WorkerCount)
279 ClearFlag( pCurrentWorker->State, AFS_WORKER_PROCESS_REQUESTS);
281 pCurrentWorker = pCurrentWorker->fLink;
283 if ( pCurrentWorker == NULL)
292 pCurrentWorker = pDevExt->Specific.Library.PoolHead;
296 while( index < pDevExt->Specific.Library.WorkerCount)
299 ntStatus = AFSShutdownWorkerThread( pCurrentWorker);
301 pNextWorker = pCurrentWorker->fLink;
303 ExFreePool( pCurrentWorker);
305 pCurrentWorker = pNextWorker;
307 if( pCurrentWorker == NULL)
316 pDevExt->Specific.Library.PoolHead = NULL;
318 ExDeleteResourceLite( &pDevExt->Specific.Library.QueueLock);
321 // Loop through the IO workers shutting them down in two stages.
322 // First, clear AFS_WORKER_PROCESS_REQUESTS so that workers
323 // stop processing requests. Second, call AFSShutdownWorkerThread()
324 // to wake the workers and wait for them to exit.
327 pCurrentWorker = pDevExt->Specific.Library.IOPoolHead;
331 while( index < pDevExt->Specific.Library.IOWorkerCount)
334 ClearFlag( pCurrentWorker->State, AFS_WORKER_PROCESS_REQUESTS);
336 pCurrentWorker = pCurrentWorker->fLink;
338 if ( pCurrentWorker == NULL)
347 pCurrentWorker = pDevExt->Specific.Library.IOPoolHead;
351 while( index < pDevExt->Specific.Library.IOWorkerCount)
354 ntStatus = AFSShutdownIOWorkerThread( pCurrentWorker);
356 pNextWorker = pCurrentWorker->fLink;
358 ExFreePool( pCurrentWorker);
360 pCurrentWorker = pNextWorker;
362 if( pCurrentWorker == NULL)
371 pDevExt->Specific.Library.IOPoolHead = NULL;
373 ExDeleteResourceLite( &pDevExt->Specific.Library.IOQueueLock);
379 AFSInitVolumeWorker( IN AFSVolumeCB *VolumeCB)
382 NTSTATUS ntStatus = STATUS_SUCCESS;
383 AFSWorkQueueContext *pWorker = &VolumeCB->VolumeWorkerContext;
385 AFSDeviceExt *pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
386 PKSTART_ROUTINE pStartRoutine = NULL;
392 if( VolumeCB == AFSGlobalRoot)
395 pStartRoutine = AFSPrimaryVolumeWorkerThread;
400 pStartRoutine = AFSVolumeWorkerThread;
404 // Initialize the worker thread
407 KeInitializeEvent( &pWorker->WorkerThreadReady,
412 // Set the worker to process requests
415 pWorker->State = AFS_WORKER_PROCESS_REQUESTS;
421 ntStatus = PsCreateSystemThread( &hThread,
429 if( NT_SUCCESS( ntStatus))
432 ObReferenceObjectByHandle( hThread,
433 GENERIC_READ | GENERIC_WRITE,
436 (PVOID *)&pWorker->WorkerThreadObject,
439 ntStatus = KeWaitForSingleObject( &pWorker->WorkerThreadReady,
445 lCount = InterlockedIncrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
450 KeClearEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent);
461 // Function: AFSInitWorkerThread
465 // This function initializes a worker thread in the pool
469 // A status is returned for the function
473 AFSInitWorkerThread( IN AFSWorkQueueContext *PoolContext,
474 IN PKSTART_ROUTINE WorkerRoutine)
477 NTSTATUS ntStatus = STATUS_SUCCESS;
481 // INitialize the worker signal thread
484 KeInitializeEvent( &PoolContext->WorkerThreadReady,
489 // Set the worker to process requests
492 PoolContext->State = AFS_WORKER_PROCESS_REQUESTS;
498 ntStatus = PsCreateSystemThread( &Handle,
504 (void *)PoolContext);
506 if( NT_SUCCESS( ntStatus))
509 ObReferenceObjectByHandle( Handle,
510 GENERIC_READ | GENERIC_WRITE,
513 (PVOID *)&PoolContext->WorkerThreadObject,
516 ntStatus = KeWaitForSingleObject( &PoolContext->WorkerThreadReady,
529 AFSShutdownVolumeWorker( IN AFSVolumeCB *VolumeCB)
532 NTSTATUS ntStatus = STATUS_SUCCESS;
533 AFSWorkQueueContext *pWorker = &VolumeCB->VolumeWorkerContext;
535 if( pWorker->WorkerThreadObject != NULL &&
536 BooleanFlagOn( pWorker->State, AFS_WORKER_INITIALIZED))
540 // Clear the 'keep processing' flag
543 ClearFlag( pWorker->State, AFS_WORKER_PROCESS_REQUESTS);
545 ntStatus = KeWaitForSingleObject( pWorker->WorkerThreadObject,
551 ObDereferenceObject( pWorker->WorkerThreadObject);
553 pWorker->WorkerThreadObject = NULL;
560 // Function: AFSShutdownWorkerThread
564 // This function shutsdown a worker thread in the pool
568 // A status is returned for the function
572 AFSShutdownWorkerThread( IN AFSWorkQueueContext *PoolContext)
575 NTSTATUS ntStatus = STATUS_SUCCESS;
576 AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
578 if( PoolContext->WorkerThreadObject != NULL &&
579 BooleanFlagOn( PoolContext->State, AFS_WORKER_INITIALIZED))
583 // Wake up the thread if it is a sleep
586 KeSetEvent( &pDeviceExt->Specific.Library.WorkerQueueHasItems,
590 ntStatus = KeWaitForSingleObject( PoolContext->WorkerThreadObject,
596 ObDereferenceObject( PoolContext->WorkerThreadObject);
598 PoolContext->WorkerThreadObject = NULL;
605 // Function: AFSShutdownIOWorkerThread
609 // This function shutsdown an IO worker thread in the pool
613 // A status is returned for the function
617 AFSShutdownIOWorkerThread( IN AFSWorkQueueContext *PoolContext)
620 NTSTATUS ntStatus = STATUS_SUCCESS;
621 AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
623 if( PoolContext->WorkerThreadObject != NULL &&
624 BooleanFlagOn( PoolContext->State, AFS_WORKER_INITIALIZED))
628 // Wake up the thread if it is a sleep
631 KeSetEvent( &pDeviceExt->Specific.Library.IOWorkerQueueHasItems,
635 ntStatus = KeWaitForSingleObject( PoolContext->WorkerThreadObject,
641 ObDereferenceObject( PoolContext->WorkerThreadObject);
643 PoolContext->WorkerThreadObject = NULL;
650 // Function: AFSWorkerThread
654 // This is the worker thread entry point.
658 // A status is returned for the function
662 AFSWorkerThread( IN PVOID Context)
665 NTSTATUS ntStatus = STATUS_SUCCESS;
666 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)Context;
667 AFSWorkItem *pWorkItem;
668 BOOLEAN freeWorkItem = TRUE;
669 AFSDeviceExt *pLibraryDevExt = NULL;
672 pLibraryDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
675 // Indicate that we are initialized and ready
678 KeSetEvent( &pPoolContext->WorkerThreadReady,
683 // Indicate we are initialized
686 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
688 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
694 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
697 if( !NT_SUCCESS( ntStatus))
700 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
701 AFS_TRACE_LEVEL_ERROR,
702 "AFSWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
704 ntStatus = STATUS_SUCCESS;
709 pWorkItem = AFSRemoveWorkItem();
711 if( pWorkItem == NULL)
714 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
726 // Switch on the type of work item to process
729 switch( pWorkItem->RequestType)
732 case AFS_WORK_FLUSH_FCB:
735 ntStatus = AFSFlushExtents( pWorkItem->Specific.Fcb.Fcb,
736 &pWorkItem->AuthGroup);
738 if( !NT_SUCCESS( ntStatus))
741 AFSReleaseExtentsWithFlush( pWorkItem->Specific.Fcb.Fcb,
742 &pWorkItem->AuthGroup,
746 ASSERT( pWorkItem->Specific.Fcb.Fcb->OpenReferenceCount != 0);
748 lCount = InterlockedDecrement( &pWorkItem->Specific.Fcb.Fcb->OpenReferenceCount);
753 case AFS_WORK_ENUMERATE_GLOBAL_ROOT:
756 AFSEnumerateGlobalRoot( NULL);
761 case AFS_WORK_INVALIDATE_OBJECT:
764 AFSPerformObjectInvalidate( pWorkItem->Specific.Invalidate.ObjectInfo,
765 pWorkItem->Specific.Invalidate.InvalidateReason);
772 case AFS_WORK_START_IOS:
782 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
783 AFS_TRACE_LEVEL_ERROR,
784 "AFSWorkerThread Unknown request type %d\n", pWorkItem->RequestType);
792 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
795 ntStatus = STATUS_SUCCESS;
798 } // worker thread loop
800 ClearFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
802 // Wake up another worker so they too can exit
804 KeSetEvent( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
808 PsTerminateSystemThread( 0);
814 AFSIOWorkerThread( IN PVOID Context)
817 NTSTATUS ntStatus = STATUS_SUCCESS;
818 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)Context;
819 AFSWorkItem *pWorkItem;
820 BOOLEAN freeWorkItem = TRUE;
821 AFSDeviceExt *pLibraryDevExt = NULL, *pRdrDevExt = NULL;
823 pLibraryDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
826 // Indicate that we are initialized and ready
829 KeSetEvent( &pPoolContext->WorkerThreadReady,
835 // Indicate we are initialized
838 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
840 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
846 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
849 if( !NT_SUCCESS( ntStatus))
852 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
853 AFS_TRACE_LEVEL_ERROR,
854 "AFSIOWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
856 ntStatus = STATUS_SUCCESS;
861 pWorkItem = AFSRemoveIOWorkItem();
863 if( pWorkItem == NULL)
866 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
878 // Switch on the type of work item to process
881 switch( pWorkItem->RequestType)
884 case AFS_WORK_START_IOS:
887 pRdrDevExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
890 // The final status is in the gather io
893 ntStatus = AFSStartIos( pWorkItem->Specific.CacheAccess.CacheFileObject,
894 pWorkItem->Specific.CacheAccess.FunctionCode,
895 pWorkItem->Specific.CacheAccess.RequestFlags,
896 pWorkItem->Specific.CacheAccess.IoRuns,
897 pWorkItem->Specific.CacheAccess.RunCount,
898 pWorkItem->Specific.CacheAccess.GatherIo);
901 // Regardless of the status we we do the complete - there may
903 // Decrement the count - setting the event if we were told
904 // to. This may trigger completion.
907 AFSCompleteIo( pWorkItem->Specific.CacheAccess.GatherIo, ntStatus );
916 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
917 AFS_TRACE_LEVEL_ERROR,
918 "AFSWorkerThread Unknown request type %d\n", pWorkItem->RequestType);
926 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
929 ntStatus = STATUS_SUCCESS;
932 } // worker thread loop
934 ClearFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
936 // Wake up another IOWorker so they too can exit
938 KeSetEvent( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
942 PsTerminateSystemThread( 0);
948 AFSPrimaryVolumeWorkerThread( IN PVOID Context)
951 NTSTATUS ntStatus = STATUS_SUCCESS;
952 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)&AFSGlobalRoot->VolumeWorkerContext;
953 AFSDeviceExt *pControlDeviceExt = NULL;
954 AFSDeviceExt *pRDRDeviceExt = NULL;
955 LARGE_INTEGER DueTime;
958 BOOLEAN bFoundOpenEntry = FALSE;
959 AFSObjectInfoCB *pCurrentObject = NULL, *pNextObject = NULL, *pCurrentChildObject = NULL;
960 AFSDirectoryCB *pCurrentDirEntry = NULL, *pNextDirEntry = NULL;
961 BOOLEAN bReleaseVolumeLock = FALSE;
962 AFSVolumeCB *pVolumeCB = NULL, *pNextVolume = NULL;
965 LARGE_INTEGER liCurrentTime;
966 BOOLEAN bVolumeObject = FALSE;
969 pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
971 pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
973 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
974 AFS_TRACE_LEVEL_VERBOSE,
975 "AFSPrimaryVolumeWorkerThread Initialized\n");
978 // Initialize the timer for the worker thread
981 DueTime.QuadPart = -(5000);
985 KeInitializeTimerEx( &Timer,
986 SynchronizationTimer);
988 KeSetTimerEx( &Timer,
994 // Indicate that we are initialized and ready
997 KeSetEvent( &pPoolContext->WorkerThreadReady,
1002 // Indicate we are initialized
1005 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
1007 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
1010 KeWaitForSingleObject( &Timer,
1017 // This is the primary volume worker so it will traverse the volume list
1018 // looking for cleanup or volumes requiring private workers
1021 AFSAcquireShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1024 pVolumeCB = pRDRDeviceExt->Specific.RDR.VolumeListHead;
1026 while( pVolumeCB != NULL)
1029 if( pVolumeCB == AFSGlobalRoot ||
1030 !AFSAcquireExcl( pVolumeCB->VolumeLock,
1034 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1039 if( pVolumeCB->ObjectInfoListHead == NULL)
1042 AFSReleaseResource( pVolumeCB->VolumeLock);
1044 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1046 AFSAcquireExcl( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock,
1049 AFSAcquireExcl( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1052 if( !AFSAcquireExcl( pVolumeCB->VolumeLock,
1056 AFSConvertToShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1058 AFSReleaseResource( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock);
1060 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1065 KeQueryTickCount( &liCurrentTime);
1067 pNextVolume = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1069 if( pVolumeCB->ObjectInfoListHead == NULL &&
1070 pVolumeCB->DirectoryCB->OpenReferenceCount == 0 &&
1071 pVolumeCB->VolumeReferenceCount == 1 &&
1072 ( pVolumeCB->RootFcb == NULL ||
1073 pVolumeCB->RootFcb->OpenReferenceCount == 0) &&
1074 pVolumeCB->ObjectInformation.ObjectReferenceCount <= 0)
1077 if( pVolumeCB->RootFcb != NULL)
1080 AFSRemoveRootFcb( pVolumeCB->RootFcb);
1083 AFSRemoveVolume( pVolumeCB);
1088 AFSReleaseResource( pVolumeCB->VolumeLock);
1091 AFSConvertToShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1093 AFSReleaseResource( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock);
1095 pVolumeCB = pNextVolume;
1101 // Don't need this lock anymore now that we have a volume cb to work with
1104 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1107 // For now we only need the volume lock shared
1110 AFSConvertToShared( pVolumeCB->VolumeLock);
1112 if( AFSAcquireShared( pVolumeCB->ObjectInfoTree.TreeLock,
1116 pCurrentObject = pVolumeCB->ObjectInfoListHead;
1120 bReleaseVolumeLock = TRUE;
1122 while( pCurrentObject != NULL)
1125 if( pCurrentObject != &pVolumeCB->ObjectInformation)
1128 pNextObject = (AFSObjectInfoCB *)pCurrentObject->ListEntry.fLink;
1130 if( pNextObject == NULL &&
1131 pVolumeCB != AFSGlobalRoot) // Don't free up the root of the global
1134 pNextObject = &pVolumeCB->ObjectInformation;
1137 bVolumeObject = FALSE;
1144 bVolumeObject = TRUE;
1147 if( pCurrentObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1148 !BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN)) // If we are in shutdown mode skip directories
1152 // If this object is deleted then remove it from the parent, if we can
1155 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1156 pCurrentObject->ObjectReferenceCount <= 0 &&
1157 ( pCurrentObject->Fcb == NULL ||
1158 pCurrentObject->Fcb->OpenReferenceCount == 0) &&
1159 pCurrentObject->Specific.Directory.DirectoryNodeListHead == NULL &&
1160 pCurrentObject->Specific.Directory.ChildOpenReferenceCount == 0)
1163 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1166 // Dropping the TreeLock permits the
1167 // pCurrentObject->ObjectReferenceCount to change
1170 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1174 if ( pCurrentObject->ObjectReferenceCount <= 0 &&
1175 ( pCurrentObject->Fcb == NULL ||
1176 pCurrentObject->Fcb->OpenReferenceCount == 0 &&
1177 pCurrentObject->Fcb->Specific.File.ExtentCount == 0))
1180 AFSRemoveFcb( &pCurrentObject->Fcb);
1182 if( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB != NULL)
1185 AFSRemoveFcb( &pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb);
1187 AFSDeleteObjectInfo( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation);
1189 ExDeleteResourceLite( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged->Lock);
1191 AFSExFreePoolWithTag( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged, AFS_DIR_ENTRY_NP_TAG);
1193 AFSExFreePoolWithTag( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB, AFS_DIR_ENTRY_TAG);
1196 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1197 AFS_TRACE_LEVEL_VERBOSE,
1198 "AFSPrimaryVolumeWorkerThread Deleting deleted object %08lX\n",
1201 AFSDeleteObjectInfo( pCurrentObject);
1204 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1206 pCurrentObject = pNextObject;
1213 bReleaseVolumeLock = FALSE;
1219 if( pCurrentObject->Specific.Directory.ChildOpenReferenceCount > 0 ||
1220 ( pCurrentObject->Fcb != NULL &&
1221 pCurrentObject->Fcb->OpenReferenceCount > 0) ||
1222 pCurrentObject->Specific.Directory.DirectoryNodeListHead == NULL)
1225 pCurrentObject = pNextObject;
1230 if( !AFSAcquireShared( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1234 pCurrentObject = pNextObject;
1239 KeQueryTickCount( &liCurrentTime);
1241 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1243 while( pCurrentDirEntry != NULL)
1246 if( pCurrentDirEntry->OpenReferenceCount > 0 ||
1247 ( pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1248 pCurrentDirEntry->ObjectInformation->Fcb->OpenReferenceCount > 0) ||
1249 liCurrentTime.QuadPart <= pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart ||
1250 liCurrentTime.QuadPart - pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart <
1251 pControlDeviceExt->Specific.Control.ObjectLifeTimeCount.QuadPart ||
1252 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1253 ( pCurrentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeListHead != NULL ||
1254 pCurrentDirEntry->ObjectInformation->Specific.Directory.ChildOpenReferenceCount > 0)) ||
1255 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
1256 pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1257 pCurrentDirEntry->ObjectInformation->Fcb->Specific.File.ExtentsDirtyCount > 0))
1263 pCurrentDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1266 if( pCurrentDirEntry != NULL)
1269 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1271 pCurrentObject = pNextObject;
1276 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1278 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1281 // Now acquire the locks excl
1284 if( AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1288 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1292 if( pCurrentObject->Specific.Directory.ChildOpenReferenceCount > 0)
1295 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1297 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1299 pCurrentObject = pNextObject;
1304 KeQueryTickCount( &liCurrentTime);
1306 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1308 while( pCurrentDirEntry != NULL)
1311 if( pCurrentDirEntry->OpenReferenceCount > 0 ||
1312 ( pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1313 pCurrentDirEntry->ObjectInformation->Fcb->OpenReferenceCount > 0) ||
1314 liCurrentTime.QuadPart <= pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart ||
1315 liCurrentTime.QuadPart - pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart <
1316 pControlDeviceExt->Specific.Control.ObjectLifeTimeCount.QuadPart ||
1317 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1318 ( pCurrentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeListHead != NULL ||
1319 pCurrentDirEntry->ObjectInformation->Specific.Directory.ChildOpenReferenceCount > 0)) ||
1320 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
1321 pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1322 pCurrentDirEntry->ObjectInformation->Fcb->Specific.File.ExtentsDirtyCount > 0))
1328 pCurrentDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1331 if( pCurrentDirEntry != NULL)
1334 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1336 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1338 pCurrentObject = pNextObject;
1343 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1345 while( pCurrentDirEntry != NULL)
1348 pNextDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1350 pCurrentChildObject = pCurrentDirEntry->ObjectInformation;
1354 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1355 AFS_TRACE_LEVEL_VERBOSE,
1356 "AFSPrimaryVolumeWorkerThread Deleting DE %wZ Object %08lX\n",
1357 &pCurrentDirEntry->NameInformation.FileName,
1358 pCurrentChildObject);
1360 AFSDeleteDirEntry( pCurrentObject,
1363 if( pCurrentChildObject->ObjectReferenceCount <= 0 &&
1364 pCurrentChildObject->Fcb != NULL &&
1365 pCurrentChildObject->FileType == AFS_FILE_TYPE_FILE)
1369 // We must not hold pVolumeCB->ObjectInfoTree.TreeLock exclusive
1370 // across an AFSCleanupFcb call since it can deadlock with an
1371 // invalidation call from the service.
1374 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1377 // Dropping the TreeLock permits the
1378 // pCurrentObject->ObjectReferenceCount to change
1381 AFSCleanupFcb( pCurrentChildObject->Fcb,
1384 AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1388 if( pCurrentChildObject->ObjectReferenceCount <= 0 &&
1389 ( pCurrentChildObject->Fcb == NULL ||
1390 pCurrentChildObject->Fcb->OpenReferenceCount == 0 &&
1391 pCurrentChildObject->Fcb->Specific.File.ExtentCount == 0))
1394 AFSRemoveFcb( &pCurrentChildObject->Fcb);
1396 if( pCurrentChildObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1397 pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB != NULL)
1400 AFSRemoveFcb( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb);
1402 AFSDeleteObjectInfo( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation);
1404 ExDeleteResourceLite( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged->Lock);
1406 AFSExFreePoolWithTag( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged, AFS_DIR_ENTRY_NP_TAG);
1408 AFSExFreePoolWithTag( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB, AFS_DIR_ENTRY_TAG);
1411 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1412 AFS_TRACE_LEVEL_VERBOSE,
1413 "AFSPrimaryVolumeWorkerThread Deleting object %08lX\n",
1414 pCurrentChildObject);
1416 AFSDeleteObjectInfo( pCurrentChildObject);
1419 pCurrentDirEntry = pNextDirEntry;
1423 pCurrentObject->Specific.Directory.DirectoryNodeListHead = NULL;
1425 pCurrentObject->Specific.Directory.DirectoryNodeListTail = NULL;
1427 pCurrentObject->Specific.Directory.ShortNameTree = NULL;
1429 pCurrentObject->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = NULL;
1431 pCurrentObject->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = NULL;
1433 pCurrentObject->Specific.Directory.DirectoryNodeCount = 0;
1435 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
1436 AFS_TRACE_LEVEL_VERBOSE,
1437 "AFSPrimaryVolumeWorkerThread Reset count to 0 on parent FID %08lX-%08lX-%08lX-%08lX\n",
1438 pCurrentObject->FileId.Cell,
1439 pCurrentObject->FileId.Volume,
1440 pCurrentObject->FileId.Vnode,
1441 pCurrentObject->FileId.Unique);
1444 // Clear our enumerated flag on this object so we retrieve info again on next access
1447 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1449 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1451 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1456 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1458 bReleaseVolumeLock = FALSE;
1467 // Try to grab the volume lock again ... no problem if we don't
1470 if( !AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1474 bReleaseVolumeLock = FALSE;
1480 if( pCurrentObject != &pVolumeCB->ObjectInformation)
1483 pCurrentObject = (AFSObjectInfoCB *)pCurrentObject->ListEntry.fLink;
1485 if( pCurrentObject == NULL &&
1486 pVolumeCB != AFSGlobalRoot)
1489 pCurrentObject = &pVolumeCB->ObjectInformation;
1495 pCurrentObject = NULL;
1500 else if( pCurrentObject->FileType == AFS_FILE_TYPE_FILE)
1503 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1505 if( pCurrentObject->Fcb != NULL)
1509 // Dropping the TreeLock permits the
1510 // pCurrentObject->ObjectReferenceCount to change
1513 AFSCleanupFcb( pCurrentObject->Fcb,
1517 if( !AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1521 bReleaseVolumeLock = FALSE;
1526 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1527 pCurrentObject->ObjectReferenceCount <= 0 &&
1528 ( pCurrentObject->Fcb == NULL ||
1529 pCurrentObject->Fcb->OpenReferenceCount == 0 &&
1530 pCurrentObject->Fcb->Specific.File.ExtentCount == 0))
1533 AFSRemoveFcb( &pCurrentObject->Fcb);
1535 AFSDeleteObjectInfo( pCurrentObject);
1538 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1540 pCurrentObject = pNextObject;
1545 pCurrentObject = pNextObject;
1548 if( bReleaseVolumeLock)
1551 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1559 AFSReleaseResource( pVolumeCB->VolumeLock);
1561 AFSAcquireShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1564 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1567 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1569 } // worker thread loop
1571 KeCancelTimer( &Timer);
1573 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1574 AFS_TRACE_LEVEL_VERBOSE,
1575 "AFSPrimaryVolumeWorkerThread Exiting\n");
1577 lCount = InterlockedDecrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
1582 KeSetEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent,
1587 PsTerminateSystemThread( 0);
1593 AFSVolumeWorkerThread( IN PVOID Context)
1596 NTSTATUS ntStatus = STATUS_SUCCESS;
1597 AFSVolumeCB *pVolumeCB = (AFSVolumeCB * )Context;
1598 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)&pVolumeCB->VolumeWorkerContext;
1599 AFSDeviceExt *pControlDeviceExt = NULL;
1600 AFSDeviceExt *pRDRDeviceExt = NULL;
1601 BOOLEAN exitThread = FALSE;
1602 LARGE_INTEGER DueTime;
1607 pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
1609 pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1612 // Initialize the timer for the worker thread
1615 DueTime.QuadPart = -(5000);
1619 KeInitializeTimerEx( &Timer,
1620 SynchronizationTimer);
1622 KeSetTimerEx( &Timer,
1628 // Indicate that we are initialized and ready
1631 KeSetEvent( &pPoolContext->WorkerThreadReady,
1636 // Indicate we are initialized
1639 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
1641 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
1644 ntStatus = KeWaitForSingleObject( &Timer,
1650 if( !NT_SUCCESS( ntStatus))
1653 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1654 AFS_TRACE_LEVEL_ERROR,
1655 "AFSVolumeWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
1661 // If we are in shutdown mode and the dirty flag is clear then get out now
1664 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
1670 } // worker thread loop
1672 KeCancelTimer( &Timer);
1674 lCount = InterlockedDecrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
1679 KeSetEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent,
1684 PsTerminateSystemThread( 0);
1690 AFSInsertWorkitem( IN AFSWorkItem *WorkItem)
1693 NTSTATUS ntStatus = STATUS_SUCCESS;
1694 AFSDeviceExt *pDevExt = NULL;
1697 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1699 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1700 AFS_TRACE_LEVEL_VERBOSE,
1701 "AFSInsertWorkitem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1702 &pDevExt->Specific.Library.QueueLock,
1703 PsGetCurrentThread());
1705 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1708 lCount = InterlockedIncrement( &pDevExt->Specific.Library.QueueItemCount);
1710 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1711 AFS_TRACE_LEVEL_VERBOSE,
1712 "AFSInsertWorkitem Inserting work item %08lX Count %08lX\n",
1716 if( pDevExt->Specific.Library.QueueTail != NULL) // queue already has nodes
1719 pDevExt->Specific.Library.QueueTail->next = WorkItem;
1724 pDevExt->Specific.Library.QueueHead = WorkItem;
1727 WorkItem->next = NULL;
1728 pDevExt->Specific.Library.QueueTail = WorkItem;
1730 // indicate that the queue has nodes
1731 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1735 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1741 AFSInsertIOWorkitem( IN AFSWorkItem *WorkItem)
1744 NTSTATUS ntStatus = STATUS_SUCCESS;
1745 AFSDeviceExt *pDevExt = NULL;
1748 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1750 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1751 AFS_TRACE_LEVEL_VERBOSE,
1752 "AFSInsertIOWorkitem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1753 &pDevExt->Specific.Library.IOQueueLock,
1754 PsGetCurrentThread());
1756 AFSAcquireExcl( &pDevExt->Specific.Library.IOQueueLock,
1759 lCount = InterlockedIncrement( &pDevExt->Specific.Library.IOQueueItemCount);
1761 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1762 AFS_TRACE_LEVEL_VERBOSE,
1763 "AFSInsertWorkitem Inserting IO work item %08lX Count %08lX\n",
1767 if( pDevExt->Specific.Library.IOQueueTail != NULL) // queue already has nodes
1770 pDevExt->Specific.Library.IOQueueTail->next = WorkItem;
1775 pDevExt->Specific.Library.IOQueueHead = WorkItem;
1778 WorkItem->next = NULL;
1779 pDevExt->Specific.Library.IOQueueTail = WorkItem;
1781 // indicate that the queue has nodes
1782 KeSetEvent( &(pDevExt->Specific.Library.IOWorkerQueueHasItems),
1786 AFSReleaseResource( &pDevExt->Specific.Library.IOQueueLock);
1792 AFSInsertWorkitemAtHead( IN AFSWorkItem *WorkItem)
1795 NTSTATUS ntStatus = STATUS_SUCCESS;
1796 AFSDeviceExt *pDevExt = NULL;
1799 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1801 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1802 AFS_TRACE_LEVEL_VERBOSE,
1803 "AFSInsertWorkitemAtHead Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1804 &pDevExt->Specific.Library.QueueLock,
1805 PsGetCurrentThread());
1807 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1810 WorkItem->next = pDevExt->Specific.Library.QueueHead;
1812 pDevExt->Specific.Library.QueueHead = WorkItem;
1814 lCount = InterlockedIncrement( &pDevExt->Specific.Library.QueueItemCount);
1816 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1817 AFS_TRACE_LEVEL_VERBOSE,
1818 "AFSInsertWorkitemAtHead Inserting work item %08lX Count %08lX\n",
1823 // indicate that the queue has nodes
1826 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1830 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1839 NTSTATUS ntStatus = STATUS_SUCCESS;
1840 AFSWorkItem *pWorkItem = NULL;
1841 AFSDeviceExt *pDevExt = NULL;
1844 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1846 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1847 AFS_TRACE_LEVEL_VERBOSE,
1848 "AFSRemoveWorkItem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1849 &pDevExt->Specific.Library.QueueLock,
1850 PsGetCurrentThread());
1852 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1855 if( pDevExt->Specific.Library.QueueHead != NULL) // queue has nodes
1858 pWorkItem = pDevExt->Specific.Library.QueueHead;
1860 lCount = InterlockedDecrement( &pDevExt->Specific.Library.QueueItemCount);
1862 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1863 AFS_TRACE_LEVEL_VERBOSE,
1864 "AFSRemoveWorkItem Removing work item %08lX Count %08lX Thread %08lX\n",
1867 PsGetCurrentThreadId());
1869 pDevExt->Specific.Library.QueueHead = pDevExt->Specific.Library.QueueHead->next;
1871 if( pDevExt->Specific.Library.QueueHead == NULL) // if queue just became empty
1874 pDevExt->Specific.Library.QueueTail = NULL;
1880 // Wake up another worker
1883 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1889 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1895 AFSRemoveIOWorkItem()
1898 NTSTATUS ntStatus = STATUS_SUCCESS;
1899 AFSWorkItem *pWorkItem = NULL;
1900 AFSDeviceExt *pDevExt = NULL;
1903 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1905 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1906 AFS_TRACE_LEVEL_VERBOSE,
1907 "AFSRemoveIOWorkItem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1908 &pDevExt->Specific.Library.IOQueueLock,
1909 PsGetCurrentThread());
1911 AFSAcquireExcl( &pDevExt->Specific.Library.IOQueueLock,
1914 if( pDevExt->Specific.Library.IOQueueHead != NULL) // queue has nodes
1917 pWorkItem = pDevExt->Specific.Library.IOQueueHead;
1919 lCount = InterlockedDecrement( &pDevExt->Specific.Library.IOQueueItemCount);
1921 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1922 AFS_TRACE_LEVEL_VERBOSE,
1923 "AFSRemoveWorkItem Removing work item %08lX Count %08lX Thread %08lX\n",
1926 PsGetCurrentThreadId());
1928 pDevExt->Specific.Library.IOQueueHead = pDevExt->Specific.Library.IOQueueHead->next;
1930 if( pDevExt->Specific.Library.IOQueueHead == NULL) // if queue just became empty
1933 pDevExt->Specific.Library.IOQueueTail = NULL;
1939 // Wake up another worker
1942 KeSetEvent( &(pDevExt->Specific.Library.IOWorkerQueueHasItems),
1948 AFSReleaseResource( &pDevExt->Specific.Library.IOQueueLock);
1954 AFSQueueWorkerRequest( IN AFSWorkItem *WorkItem)
1957 NTSTATUS ntStatus = STATUS_SUCCESS;
1958 AFSDeviceExt *pDevExt = NULL;
1959 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
1962 // Submit the work item to the worker
1965 ntStatus = AFSInsertWorkitem( WorkItem);
1971 // Sync request so block on the work item event
1974 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
1985 AFSQueueIOWorkerRequest( IN AFSWorkItem *WorkItem)
1988 NTSTATUS ntStatus = STATUS_SUCCESS;
1989 AFSDeviceExt *pDevExt = NULL;
1990 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
1993 // Submit the work item to the worker
1996 ntStatus = AFSInsertIOWorkitem( WorkItem);
2002 // Sync request so block on the work item event
2005 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2016 AFSQueueWorkerRequestAtHead( IN AFSWorkItem *WorkItem)
2019 NTSTATUS ntStatus = STATUS_SUCCESS;
2020 AFSDeviceExt *pDevExt = NULL;
2021 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
2024 // Submit the work item to the worker
2027 ntStatus = AFSInsertWorkitemAtHead( WorkItem);
2033 // Sync request so block on the work item event
2036 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2047 AFSQueueFlushExtents( IN AFSFcb *Fcb,
2051 NTSTATUS ntStatus = STATUS_SUCCESS;
2052 AFSDeviceExt *pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2053 AFSWorkItem *pWorkItem = NULL;
2059 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2060 AFS_TRACE_LEVEL_VERBOSE,
2061 "AFSQueueFlushExtents Queuing request for FID %08lX-%08lX-%08lX-%08lX\n",
2062 Fcb->ObjectInformation->FileId.Cell,
2063 Fcb->ObjectInformation->FileId.Volume,
2064 Fcb->ObjectInformation->FileId.Vnode,
2065 Fcb->ObjectInformation->FileId.Unique);
2068 // Increment our flush count here just to keep the number of items in the
2069 // queue down. We'll decrement it just below.
2072 lCount = InterlockedIncrement( &Fcb->Specific.File.QueuedFlushCount);
2077 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2078 AFS_TRACE_LEVEL_VERBOSE,
2079 "AFSQueueFlushExtents Max queued items for FID %08lX-%08lX-%08lX-%08lX\n",
2080 Fcb->ObjectInformation->FileId.Cell,
2081 Fcb->ObjectInformation->FileId.Volume,
2082 Fcb->ObjectInformation->FileId.Vnode,
2083 Fcb->ObjectInformation->FileId.Unique);
2085 try_return( ntStatus);
2088 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
2091 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2092 AFS_TRACE_LEVEL_ERROR,
2093 "AFSQueueFlushExtents Failing request, in shutdown\n");
2095 try_return( ntStatus = STATUS_TOO_LATE);
2099 // Allocate our request structure and send it to the worker
2102 pWorkItem = (AFSWorkItem *)AFSLibExAllocatePoolWithTag( NonPagedPool,
2103 sizeof( AFSWorkItem),
2106 if( pWorkItem == NULL)
2109 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2110 AFS_TRACE_LEVEL_ERROR,
2111 "AFSQueueFlushExtents Failed to allocate work item\n");
2113 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2116 RtlZeroMemory( pWorkItem,
2117 sizeof( AFSWorkItem));
2119 pWorkItem->Size = sizeof( AFSWorkItem);
2121 pWorkItem->ProcessID = (ULONGLONG)PsGetCurrentProcessId();
2123 pWorkItem->RequestType = AFS_WORK_FLUSH_FCB;
2125 if ( AuthGroup == NULL)
2128 RtlZeroMemory( &pWorkItem->AuthGroup,
2131 ntStatus = AFSRetrieveValidAuthGroup( Fcb,
2134 &pWorkItem->AuthGroup);
2138 RtlCopyMemory( &pWorkItem->AuthGroup,
2143 pWorkItem->Specific.Fcb.Fcb = Fcb;
2145 lCount = InterlockedIncrement( &Fcb->OpenReferenceCount);
2147 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2148 AFS_TRACE_LEVEL_VERBOSE,
2149 "AFSQueueFlushExtents Increment count on Fcb %08lX Cnt %d\n",
2153 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2154 AFS_TRACE_LEVEL_VERBOSE,
2155 "AFSQueueFlushExtents Workitem %08lX for FID %08lX-%08lX-%08lX-%08lX\n",
2157 Fcb->ObjectInformation->FileId.Cell,
2158 Fcb->ObjectInformation->FileId.Volume,
2159 Fcb->ObjectInformation->FileId.Vnode,
2160 Fcb->ObjectInformation->FileId.Unique);
2162 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2166 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2167 AFS_TRACE_LEVEL_VERBOSE,
2168 "AFSQueueFlushExtents Request complete Status %08lX FID %08lX-%08lX-%08lX-%08lX\n",
2169 Fcb->ObjectInformation->FileId.Cell,
2170 Fcb->ObjectInformation->FileId.Volume,
2171 Fcb->ObjectInformation->FileId.Vnode,
2172 Fcb->ObjectInformation->FileId.Unique,
2176 // Remove the count we added above
2179 lCount = InterlockedDecrement( &Fcb->Specific.File.QueuedFlushCount);
2184 KeSetEvent( &Fcb->NPFcb->Specific.File.QueuedFlushEvent,
2189 if( !NT_SUCCESS( ntStatus))
2192 if( pWorkItem != NULL)
2195 lCount = InterlockedDecrement( &Fcb->OpenReferenceCount);
2197 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2200 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2201 AFS_TRACE_LEVEL_ERROR,
2202 "AFSQueueFlushExtents Failed to queue request Status %08lX\n", ntStatus);
2205 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2210 "EXCEPTION - AFSQueueFlushExtents\n");
2212 AFSDumpTraceFilesFnc();
2219 AFSQueueGlobalRootEnumeration()
2222 NTSTATUS ntStatus = STATUS_SUCCESS;
2223 AFSWorkItem *pWorkItem = NULL;
2228 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2229 sizeof(AFSWorkItem),
2231 if (NULL == pWorkItem)
2234 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2235 AFS_TRACE_LEVEL_ERROR,
2236 "AFSQueueGlobalRootEnumeration Failed to allocate work item\n");
2238 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2241 RtlZeroMemory( pWorkItem,
2242 sizeof(AFSWorkItem));
2244 pWorkItem->Size = sizeof( AFSWorkItem);
2246 pWorkItem->RequestType = AFS_WORK_ENUMERATE_GLOBAL_ROOT;
2248 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2249 AFS_TRACE_LEVEL_VERBOSE,
2250 "AFSQueueGlobalRootEnumeration Workitem %08lX\n",
2253 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2257 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2258 AFS_TRACE_LEVEL_VERBOSE,
2259 "AFSQueueGlobalRootEnumeration Request complete Status %08lX\n",
2262 if( !NT_SUCCESS( ntStatus))
2265 if( pWorkItem != NULL)
2268 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2271 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2272 AFS_TRACE_LEVEL_ERROR,
2273 "AFSQueueGlobalRootEnumeration Failed to queue request Status %08lX\n",
2277 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2282 "EXCEPTION - AFSQueueGlobalRootEnumeration\n");
2284 AFSDumpTraceFilesFnc();
2291 AFSQueueStartIos( IN PFILE_OBJECT CacheFileObject,
2292 IN UCHAR FunctionCode,
2293 IN ULONG RequestFlags,
2294 IN AFSIoRun *IoRuns,
2296 IN AFSGatherIo *GatherIo)
2299 NTSTATUS ntStatus = STATUS_SUCCESS;
2300 AFSDeviceExt *pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2301 AFSWorkItem *pWorkItem = NULL;
2306 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
2309 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2310 AFS_TRACE_LEVEL_ERROR,
2311 "AFSQueueStartIos Failing request, in shutdown\n");
2313 try_return( ntStatus = STATUS_TOO_LATE);
2317 // Allocate our request structure and send it to the worker
2320 pWorkItem = (AFSWorkItem *)AFSLibExAllocatePoolWithTag( NonPagedPool,
2321 sizeof( AFSWorkItem),
2324 if( pWorkItem == NULL)
2327 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2328 AFS_TRACE_LEVEL_ERROR,
2329 "AFSQueueStartIos Failed to allocate work item\n");
2331 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2334 RtlZeroMemory( pWorkItem,
2335 sizeof( AFSWorkItem));
2337 KeInitializeEvent( &pWorkItem->Event,
2341 pWorkItem->Size = sizeof( AFSWorkItem);
2343 pWorkItem->ProcessID = (ULONGLONG)PsGetCurrentProcessId();
2345 pWorkItem->RequestType = AFS_WORK_START_IOS;
2347 pWorkItem->Specific.CacheAccess.CacheFileObject = CacheFileObject;
2349 pWorkItem->Specific.CacheAccess.FunctionCode = FunctionCode;
2351 pWorkItem->Specific.CacheAccess.RequestFlags = RequestFlags;
2353 pWorkItem->Specific.CacheAccess.IoRuns = IoRuns;
2355 pWorkItem->Specific.CacheAccess.RunCount = RunCount;
2357 pWorkItem->Specific.CacheAccess.GatherIo = GatherIo;
2359 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2360 AFS_TRACE_LEVEL_VERBOSE,
2361 "AFSQueueStartIos Queuing IO Workitem %08lX\n",
2364 ntStatus = AFSQueueIOWorkerRequest( pWorkItem);
2368 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2369 AFS_TRACE_LEVEL_VERBOSE,
2370 "AFSQueueStartIos Request complete Status %08lX\n",
2373 if( !NT_SUCCESS( ntStatus))
2376 if( pWorkItem != NULL)
2379 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2383 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2388 "EXCEPTION - AFSQueueStartIos\n");
2390 AFSDumpTraceFilesFnc();
2397 AFSQueueInvalidateObject( IN AFSObjectInfoCB *ObjectInfo,
2398 IN ULONG InvalidateReason)
2401 NTSTATUS ntStatus = STATUS_SUCCESS;
2402 AFSWorkItem *pWorkItem = NULL;
2407 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2408 sizeof(AFSWorkItem),
2410 if (NULL == pWorkItem)
2413 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2414 AFS_TRACE_LEVEL_ERROR,
2415 "AFSQueueInvalidateObject Failed to allocate work item\n");
2417 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2420 RtlZeroMemory( pWorkItem,
2421 sizeof(AFSWorkItem));
2423 pWorkItem->Size = sizeof( AFSWorkItem);
2425 pWorkItem->RequestType = AFS_WORK_INVALIDATE_OBJECT;
2427 pWorkItem->Specific.Invalidate.ObjectInfo = ObjectInfo;
2429 pWorkItem->Specific.Invalidate.InvalidateReason = InvalidateReason;
2431 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2432 AFS_TRACE_LEVEL_VERBOSE,
2433 "AFSQueueInvalidateObject Workitem %08lX\n",
2436 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2440 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2441 AFS_TRACE_LEVEL_VERBOSE,
2442 "AFSQueueInvalidateObject Request complete Status %08lX\n",
2445 if( !NT_SUCCESS( ntStatus))
2448 if( pWorkItem != NULL)
2450 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2453 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2454 AFS_TRACE_LEVEL_ERROR,
2455 "AFSQueueInvalidateObject Failed to queue request Status %08lX\n",
2459 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2464 "EXCEPTION - AFSQueueInvalidateObject\n");
2466 AFSDumpTraceFilesFnc();