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);
745 ASSERT( pWorkItem->Specific.Fcb.Fcb->OpenReferenceCount != 0);
747 lCount = InterlockedDecrement( &pWorkItem->Specific.Fcb.Fcb->OpenReferenceCount);
752 case AFS_WORK_ASYNCH_READ:
755 ASSERT( pWorkItem->Specific.AsynchIo.CallingProcess != NULL);
757 (VOID) AFSCommonRead( pWorkItem->Specific.AsynchIo.Device,
758 pWorkItem->Specific.AsynchIo.Irp,
759 pWorkItem->Specific.AsynchIo.CallingProcess);
764 case AFS_WORK_ASYNCH_WRITE:
767 ASSERT( pWorkItem->Specific.AsynchIo.CallingProcess != NULL);
769 (VOID) AFSCommonWrite( pWorkItem->Specific.AsynchIo.Device,
770 pWorkItem->Specific.AsynchIo.Irp,
771 pWorkItem->Specific.AsynchIo.CallingProcess);
775 case AFS_WORK_ENUMERATE_GLOBAL_ROOT:
778 AFSEnumerateGlobalRoot( NULL);
783 case AFS_WORK_INVALIDATE_OBJECT:
786 AFSPerformObjectInvalidate( pWorkItem->Specific.Invalidate.ObjectInfo,
787 pWorkItem->Specific.Invalidate.InvalidateReason);
794 case AFS_WORK_START_IOS:
804 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
805 AFS_TRACE_LEVEL_ERROR,
806 "AFSWorkerThread Unknown request type %d\n", pWorkItem->RequestType);
814 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
817 ntStatus = STATUS_SUCCESS;
820 } // worker thread loop
822 ClearFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
824 // Wake up another worker so they too can exit
826 KeSetEvent( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
830 PsTerminateSystemThread( 0);
836 AFSIOWorkerThread( IN PVOID Context)
839 NTSTATUS ntStatus = STATUS_SUCCESS;
840 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)Context;
841 AFSWorkItem *pWorkItem;
842 BOOLEAN freeWorkItem = TRUE;
843 AFSDeviceExt *pLibraryDevExt = NULL, *pRdrDevExt = NULL;
845 pLibraryDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
848 // Indicate that we are initialized and ready
851 KeSetEvent( &pPoolContext->WorkerThreadReady,
857 // Indicate we are initialized
860 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
862 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
868 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
871 if( !NT_SUCCESS( ntStatus))
874 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
875 AFS_TRACE_LEVEL_ERROR,
876 "AFSIOWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
878 ntStatus = STATUS_SUCCESS;
883 pWorkItem = AFSRemoveIOWorkItem();
885 if( pWorkItem == NULL)
888 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
900 // Switch on the type of work item to process
903 switch( pWorkItem->RequestType)
906 case AFS_WORK_START_IOS:
909 pRdrDevExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
912 // The final status is in the gather io
915 ntStatus = AFSStartIos( pWorkItem->Specific.CacheAccess.CacheFileObject,
916 pWorkItem->Specific.CacheAccess.FunctionCode,
917 pWorkItem->Specific.CacheAccess.RequestFlags,
918 pWorkItem->Specific.CacheAccess.IoRuns,
919 pWorkItem->Specific.CacheAccess.RunCount,
920 pWorkItem->Specific.CacheAccess.GatherIo);
923 // Regardless of the status we we do the complete - there may
925 // Decrement the count - setting the event if we were told
926 // to. This may trigger completion.
929 AFSCompleteIo( pWorkItem->Specific.CacheAccess.GatherIo, ntStatus );
938 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
939 AFS_TRACE_LEVEL_ERROR,
940 "AFSWorkerThread Unknown request type %d\n", pWorkItem->RequestType);
948 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
951 ntStatus = STATUS_SUCCESS;
954 } // worker thread loop
956 ClearFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
958 // Wake up another IOWorker so they too can exit
960 KeSetEvent( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
964 PsTerminateSystemThread( 0);
970 AFSPrimaryVolumeWorkerThread( IN PVOID Context)
973 NTSTATUS ntStatus = STATUS_SUCCESS;
974 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)&AFSGlobalRoot->VolumeWorkerContext;
975 AFSDeviceExt *pControlDeviceExt = NULL;
976 AFSDeviceExt *pRDRDeviceExt = NULL;
977 LARGE_INTEGER DueTime;
980 BOOLEAN bFoundOpenEntry = FALSE;
981 AFSObjectInfoCB *pCurrentObject = NULL, *pNextObject = NULL, *pCurrentChildObject = NULL;
982 AFSDirectoryCB *pCurrentDirEntry = NULL, *pNextDirEntry = NULL;
983 BOOLEAN bReleaseVolumeLock = FALSE;
984 AFSVolumeCB *pVolumeCB = NULL, *pNextVolume = NULL;
987 LARGE_INTEGER liCurrentTime;
988 BOOLEAN bVolumeObject = FALSE;
991 pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
993 pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
995 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
996 AFS_TRACE_LEVEL_VERBOSE,
997 "AFSPrimaryVolumeWorkerThread Initialized\n");
1000 // Initialize the timer for the worker thread
1003 DueTime.QuadPart = -(5000);
1007 KeInitializeTimerEx( &Timer,
1008 SynchronizationTimer);
1010 KeSetTimerEx( &Timer,
1016 // Indicate that we are initialized and ready
1019 KeSetEvent( &pPoolContext->WorkerThreadReady,
1024 // Indicate we are initialized
1027 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
1029 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
1032 KeWaitForSingleObject( &Timer,
1039 // This is the primary volume worker so it will traverse the volume list
1040 // looking for cleanup or volumes requiring private workers
1043 AFSAcquireShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1046 pVolumeCB = pRDRDeviceExt->Specific.RDR.VolumeListHead;
1048 while( pVolumeCB != NULL)
1051 if( pVolumeCB == AFSGlobalRoot ||
1052 !AFSAcquireExcl( pVolumeCB->VolumeLock,
1056 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1061 if( pVolumeCB->ObjectInfoListHead == NULL)
1064 AFSReleaseResource( pVolumeCB->VolumeLock);
1066 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1068 AFSAcquireExcl( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock,
1071 AFSAcquireExcl( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1074 if( !AFSAcquireExcl( pVolumeCB->VolumeLock,
1078 AFSConvertToShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1080 AFSReleaseResource( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock);
1082 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1087 KeQueryTickCount( &liCurrentTime);
1089 pNextVolume = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1091 if( pVolumeCB->ObjectInfoListHead == NULL &&
1092 pVolumeCB->DirectoryCB->OpenReferenceCount == 0 &&
1093 pVolumeCB->VolumeReferenceCount == 1 &&
1094 ( pVolumeCB->RootFcb == NULL ||
1095 pVolumeCB->RootFcb->OpenReferenceCount == 0) &&
1096 pVolumeCB->ObjectInformation.ObjectReferenceCount <= 0)
1099 if( pVolumeCB->RootFcb != NULL)
1102 AFSRemoveRootFcb( pVolumeCB->RootFcb);
1105 AFSRemoveVolume( pVolumeCB);
1110 AFSReleaseResource( pVolumeCB->VolumeLock);
1113 AFSConvertToShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1115 AFSReleaseResource( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock);
1117 pVolumeCB = pNextVolume;
1123 // Don't need this lock anymore now that we have a volume cb to work with
1126 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1129 // For now we only need the volume lock shared
1132 AFSConvertToShared( pVolumeCB->VolumeLock);
1134 if( AFSAcquireShared( pVolumeCB->ObjectInfoTree.TreeLock,
1138 pCurrentObject = pVolumeCB->ObjectInfoListHead;
1142 bReleaseVolumeLock = TRUE;
1144 while( pCurrentObject != NULL)
1147 if( pCurrentObject != &pVolumeCB->ObjectInformation)
1150 pNextObject = (AFSObjectInfoCB *)pCurrentObject->ListEntry.fLink;
1152 if( pNextObject == NULL &&
1153 pVolumeCB != AFSGlobalRoot) // Don't free up the root of the global
1156 pNextObject = &pVolumeCB->ObjectInformation;
1159 bVolumeObject = FALSE;
1166 bVolumeObject = TRUE;
1169 if( pCurrentObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1170 !BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN)) // If we are in shutdown mode skip directories
1174 // If this object is deleted then remove it from the parent, if we can
1177 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1178 pCurrentObject->ObjectReferenceCount <= 0 &&
1179 ( pCurrentObject->Fcb == NULL ||
1180 pCurrentObject->Fcb->OpenReferenceCount == 0) &&
1181 pCurrentObject->Specific.Directory.DirectoryNodeListHead == NULL &&
1182 pCurrentObject->Specific.Directory.ChildOpenReferenceCount == 0)
1185 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1188 // Dropping the TreeLock permits the
1189 // pCurrentObject->ObjectReferenceCount to change
1192 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1196 if ( pCurrentObject->ObjectReferenceCount <= 0)
1199 if( pCurrentObject->Fcb != NULL)
1202 AFSRemoveFcb( &pCurrentObject->Fcb);
1205 if( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB != NULL)
1208 if( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb != NULL)
1211 AFSRemoveFcb( &pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb);
1214 AFSDeleteObjectInfo( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation);
1216 ExDeleteResourceLite( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged->Lock);
1218 AFSExFreePool( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged);
1220 AFSExFreePool( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB);
1223 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1224 AFS_TRACE_LEVEL_VERBOSE,
1225 "AFSPrimaryVolumeWorkerThread Deleting deleted object %08lX\n",
1228 AFSDeleteObjectInfo( pCurrentObject);
1231 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1233 pCurrentObject = pNextObject;
1240 bReleaseVolumeLock = FALSE;
1246 if( pCurrentObject->Specific.Directory.ChildOpenReferenceCount > 0 ||
1247 ( pCurrentObject->Fcb != NULL &&
1248 pCurrentObject->Fcb->OpenReferenceCount > 0) ||
1249 pCurrentObject->Specific.Directory.DirectoryNodeListHead == NULL)
1252 pCurrentObject = pNextObject;
1257 if( !AFSAcquireShared( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1261 pCurrentObject = pNextObject;
1266 KeQueryTickCount( &liCurrentTime);
1268 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1270 while( pCurrentDirEntry != NULL)
1273 if( pCurrentDirEntry->OpenReferenceCount > 0 ||
1274 ( pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1275 pCurrentDirEntry->ObjectInformation->Fcb->OpenReferenceCount > 0) ||
1276 liCurrentTime.QuadPart <= pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart ||
1277 liCurrentTime.QuadPart - pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart <
1278 pControlDeviceExt->Specific.Control.ObjectLifeTimeCount.QuadPart ||
1279 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1280 ( pCurrentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeListHead != NULL ||
1281 pCurrentDirEntry->ObjectInformation->Specific.Directory.ChildOpenReferenceCount > 0)) ||
1282 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
1283 pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1284 pCurrentDirEntry->ObjectInformation->Fcb->Specific.File.ExtentsDirtyCount > 0))
1290 pCurrentDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1293 if( pCurrentDirEntry != NULL)
1296 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1298 pCurrentObject = pNextObject;
1303 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1305 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1308 // Now acquire the locks excl
1311 if( AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1315 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1319 if( pCurrentObject->Specific.Directory.ChildOpenReferenceCount > 0)
1322 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1324 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1326 pCurrentObject = pNextObject;
1331 KeQueryTickCount( &liCurrentTime);
1333 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1335 while( pCurrentDirEntry != NULL)
1338 if( pCurrentDirEntry->OpenReferenceCount > 0 ||
1339 ( pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1340 pCurrentDirEntry->ObjectInformation->Fcb->OpenReferenceCount > 0) ||
1341 liCurrentTime.QuadPart <= pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart ||
1342 liCurrentTime.QuadPart - pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart <
1343 pControlDeviceExt->Specific.Control.ObjectLifeTimeCount.QuadPart ||
1344 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1345 ( pCurrentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeListHead != NULL ||
1346 pCurrentDirEntry->ObjectInformation->Specific.Directory.ChildOpenReferenceCount > 0)) ||
1347 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
1348 pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1349 pCurrentDirEntry->ObjectInformation->Fcb->Specific.File.ExtentsDirtyCount > 0))
1355 pCurrentDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1358 if( pCurrentDirEntry != NULL)
1361 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1363 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1365 pCurrentObject = pNextObject;
1370 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1372 while( pCurrentDirEntry != NULL)
1375 pNextDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1377 pCurrentChildObject = pCurrentDirEntry->ObjectInformation;
1381 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1382 AFS_TRACE_LEVEL_VERBOSE,
1383 "AFSPrimaryVolumeWorkerThread Deleting DE %wZ Object %08lX\n",
1384 &pCurrentDirEntry->NameInformation.FileName,
1385 pCurrentChildObject);
1387 AFSDeleteDirEntry( pCurrentObject,
1390 if( pCurrentChildObject->ObjectReferenceCount <= 0 &&
1391 pCurrentChildObject->Fcb != NULL &&
1392 pCurrentChildObject->FileType == AFS_FILE_TYPE_FILE)
1396 // We must not hold pVolumeCB->ObjectInfoTree.TreeLock exclusive
1397 // across an AFSCleanupFcb call since it can deadlock with an
1398 // invalidation call from the service.
1401 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1404 // Dropping the TreeLock permits the
1405 // pCurrentObject->ObjectReferenceCount to change
1408 AFSCleanupFcb( pCurrentChildObject->Fcb,
1411 AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1415 if( pCurrentChildObject->ObjectReferenceCount <= 0)
1418 if( pCurrentChildObject->Fcb != NULL)
1421 AFSRemoveFcb( &pCurrentChildObject->Fcb);
1424 if( pCurrentChildObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1425 pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB != NULL)
1428 if( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb != NULL)
1431 AFSRemoveFcb( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb);
1434 AFSDeleteObjectInfo( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation);
1436 ExDeleteResourceLite( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged->Lock);
1438 AFSExFreePool( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged);
1440 AFSExFreePool( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB);
1443 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1444 AFS_TRACE_LEVEL_VERBOSE,
1445 "AFSPrimaryVolumeWorkerThread Deleting object %08lX\n",
1446 pCurrentChildObject);
1448 AFSDeleteObjectInfo( pCurrentChildObject);
1451 pCurrentDirEntry = pNextDirEntry;
1455 pCurrentObject->Specific.Directory.DirectoryNodeListHead = NULL;
1457 pCurrentObject->Specific.Directory.DirectoryNodeListTail = NULL;
1459 pCurrentObject->Specific.Directory.ShortNameTree = NULL;
1461 pCurrentObject->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = NULL;
1463 pCurrentObject->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = NULL;
1465 pCurrentObject->Specific.Directory.DirectoryNodeCount = 0;
1467 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
1468 AFS_TRACE_LEVEL_VERBOSE,
1469 "AFSPrimaryVolumeWorkerThread Reset count to 0 on parent FID %08lX-%08lX-%08lX-%08lX\n",
1470 pCurrentObject->FileId.Cell,
1471 pCurrentObject->FileId.Volume,
1472 pCurrentObject->FileId.Vnode,
1473 pCurrentObject->FileId.Unique);
1476 // Clear our enumerated flag on this object so we retrieve info again on next access
1479 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1481 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1483 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1488 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1490 bReleaseVolumeLock = FALSE;
1499 // Try to grab the volume lock again ... no problem if we don't
1502 if( !AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1506 bReleaseVolumeLock = FALSE;
1512 if( pCurrentObject != &pVolumeCB->ObjectInformation)
1515 pCurrentObject = (AFSObjectInfoCB *)pCurrentObject->ListEntry.fLink;
1517 if( pCurrentObject == NULL &&
1518 pVolumeCB != AFSGlobalRoot)
1521 pCurrentObject = &pVolumeCB->ObjectInformation;
1527 pCurrentObject = NULL;
1532 else if( pCurrentObject->FileType == AFS_FILE_TYPE_FILE)
1535 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1537 if( pCurrentObject->Fcb != NULL)
1541 // Dropping the TreeLock permits the
1542 // pCurrentObject->ObjectReferenceCount to change
1545 AFSCleanupFcb( pCurrentObject->Fcb,
1549 if( !AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1553 bReleaseVolumeLock = FALSE;
1558 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1559 pCurrentObject->ObjectReferenceCount <= 0 &&
1560 ( pCurrentObject->Fcb == NULL ||
1561 pCurrentObject->Fcb->OpenReferenceCount == 0))
1564 if( pCurrentObject->Fcb != NULL)
1567 AFSRemoveFcb( &pCurrentObject->Fcb);
1570 AFSDeleteObjectInfo( pCurrentObject);
1573 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1575 pCurrentObject = pNextObject;
1580 pCurrentObject = pNextObject;
1583 if( bReleaseVolumeLock)
1586 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1594 AFSReleaseResource( pVolumeCB->VolumeLock);
1596 AFSAcquireShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1599 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1602 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1604 } // worker thread loop
1606 KeCancelTimer( &Timer);
1608 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1609 AFS_TRACE_LEVEL_VERBOSE,
1610 "AFSPrimaryVolumeWorkerThread Exiting\n");
1612 lCount = InterlockedDecrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
1617 KeSetEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent,
1622 PsTerminateSystemThread( 0);
1628 AFSVolumeWorkerThread( IN PVOID Context)
1631 NTSTATUS ntStatus = STATUS_SUCCESS;
1632 AFSVolumeCB *pVolumeCB = (AFSVolumeCB * )Context;
1633 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)&pVolumeCB->VolumeWorkerContext;
1634 AFSDeviceExt *pControlDeviceExt = NULL;
1635 AFSDeviceExt *pRDRDeviceExt = NULL;
1636 BOOLEAN exitThread = FALSE;
1637 LARGE_INTEGER DueTime;
1642 pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
1644 pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1647 // Initialize the timer for the worker thread
1650 DueTime.QuadPart = -(5000);
1654 KeInitializeTimerEx( &Timer,
1655 SynchronizationTimer);
1657 KeSetTimerEx( &Timer,
1663 // Indicate that we are initialized and ready
1666 KeSetEvent( &pPoolContext->WorkerThreadReady,
1671 // Indicate we are initialized
1674 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
1676 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
1679 ntStatus = KeWaitForSingleObject( &Timer,
1685 if( !NT_SUCCESS( ntStatus))
1688 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1689 AFS_TRACE_LEVEL_ERROR,
1690 "AFSVolumeWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
1696 // If we are in shutdown mode and the dirty flag is clear then get out now
1699 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
1705 } // worker thread loop
1707 KeCancelTimer( &Timer);
1709 lCount = InterlockedDecrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
1714 KeSetEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent,
1719 PsTerminateSystemThread( 0);
1725 AFSInsertWorkitem( IN AFSWorkItem *WorkItem)
1728 NTSTATUS ntStatus = STATUS_SUCCESS;
1729 AFSDeviceExt *pDevExt = NULL;
1732 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1734 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1735 AFS_TRACE_LEVEL_VERBOSE,
1736 "AFSInsertWorkitem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1737 &pDevExt->Specific.Library.QueueLock,
1738 PsGetCurrentThread());
1740 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1743 lCount = InterlockedIncrement( &pDevExt->Specific.Library.QueueItemCount);
1745 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1746 AFS_TRACE_LEVEL_VERBOSE,
1747 "AFSInsertWorkitem Inserting work item %08lX Count %08lX\n",
1751 if( pDevExt->Specific.Library.QueueTail != NULL) // queue already has nodes
1754 pDevExt->Specific.Library.QueueTail->next = WorkItem;
1759 pDevExt->Specific.Library.QueueHead = WorkItem;
1762 WorkItem->next = NULL;
1763 pDevExt->Specific.Library.QueueTail = WorkItem;
1765 // indicate that the queue has nodes
1766 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1770 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1776 AFSInsertIOWorkitem( IN AFSWorkItem *WorkItem)
1779 NTSTATUS ntStatus = STATUS_SUCCESS;
1780 AFSDeviceExt *pDevExt = NULL;
1783 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1785 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1786 AFS_TRACE_LEVEL_VERBOSE,
1787 "AFSInsertIOWorkitem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1788 &pDevExt->Specific.Library.IOQueueLock,
1789 PsGetCurrentThread());
1791 AFSAcquireExcl( &pDevExt->Specific.Library.IOQueueLock,
1794 lCount = InterlockedIncrement( &pDevExt->Specific.Library.IOQueueItemCount);
1796 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1797 AFS_TRACE_LEVEL_VERBOSE,
1798 "AFSInsertWorkitem Inserting IO work item %08lX Count %08lX\n",
1802 if( pDevExt->Specific.Library.IOQueueTail != NULL) // queue already has nodes
1805 pDevExt->Specific.Library.IOQueueTail->next = WorkItem;
1810 pDevExt->Specific.Library.IOQueueHead = WorkItem;
1813 WorkItem->next = NULL;
1814 pDevExt->Specific.Library.IOQueueTail = WorkItem;
1816 // indicate that the queue has nodes
1817 KeSetEvent( &(pDevExt->Specific.Library.IOWorkerQueueHasItems),
1821 AFSReleaseResource( &pDevExt->Specific.Library.IOQueueLock);
1827 AFSInsertWorkitemAtHead( IN AFSWorkItem *WorkItem)
1830 NTSTATUS ntStatus = STATUS_SUCCESS;
1831 AFSDeviceExt *pDevExt = NULL;
1834 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1836 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1837 AFS_TRACE_LEVEL_VERBOSE,
1838 "AFSInsertWorkitemAtHead Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1839 &pDevExt->Specific.Library.QueueLock,
1840 PsGetCurrentThread());
1842 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1845 WorkItem->next = pDevExt->Specific.Library.QueueHead;
1847 pDevExt->Specific.Library.QueueHead = WorkItem;
1849 lCount = InterlockedIncrement( &pDevExt->Specific.Library.QueueItemCount);
1851 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1852 AFS_TRACE_LEVEL_VERBOSE,
1853 "AFSInsertWorkitemAtHead Inserting work item %08lX Count %08lX\n",
1858 // indicate that the queue has nodes
1861 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1865 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1874 NTSTATUS ntStatus = STATUS_SUCCESS;
1875 AFSWorkItem *pWorkItem = NULL;
1876 AFSDeviceExt *pDevExt = NULL;
1879 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1881 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1882 AFS_TRACE_LEVEL_VERBOSE,
1883 "AFSRemoveWorkItem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1884 &pDevExt->Specific.Library.QueueLock,
1885 PsGetCurrentThread());
1887 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1890 if( pDevExt->Specific.Library.QueueHead != NULL) // queue has nodes
1893 pWorkItem = pDevExt->Specific.Library.QueueHead;
1895 lCount = InterlockedDecrement( &pDevExt->Specific.Library.QueueItemCount);
1897 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1898 AFS_TRACE_LEVEL_VERBOSE,
1899 "AFSRemoveWorkItem Removing work item %08lX Count %08lX Thread %08lX\n",
1902 PsGetCurrentThreadId());
1904 pDevExt->Specific.Library.QueueHead = pDevExt->Specific.Library.QueueHead->next;
1906 if( pDevExt->Specific.Library.QueueHead == NULL) // if queue just became empty
1909 pDevExt->Specific.Library.QueueTail = NULL;
1915 // Wake up another worker
1918 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1924 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1930 AFSRemoveIOWorkItem()
1933 NTSTATUS ntStatus = STATUS_SUCCESS;
1934 AFSWorkItem *pWorkItem = NULL;
1935 AFSDeviceExt *pDevExt = NULL;
1938 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1940 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1941 AFS_TRACE_LEVEL_VERBOSE,
1942 "AFSRemoveIOWorkItem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1943 &pDevExt->Specific.Library.IOQueueLock,
1944 PsGetCurrentThread());
1946 AFSAcquireExcl( &pDevExt->Specific.Library.IOQueueLock,
1949 if( pDevExt->Specific.Library.IOQueueHead != NULL) // queue has nodes
1952 pWorkItem = pDevExt->Specific.Library.IOQueueHead;
1954 lCount = InterlockedDecrement( &pDevExt->Specific.Library.IOQueueItemCount);
1956 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1957 AFS_TRACE_LEVEL_VERBOSE,
1958 "AFSRemoveWorkItem Removing work item %08lX Count %08lX Thread %08lX\n",
1961 PsGetCurrentThreadId());
1963 pDevExt->Specific.Library.IOQueueHead = pDevExt->Specific.Library.IOQueueHead->next;
1965 if( pDevExt->Specific.Library.IOQueueHead == NULL) // if queue just became empty
1968 pDevExt->Specific.Library.IOQueueTail = NULL;
1974 // Wake up another worker
1977 KeSetEvent( &(pDevExt->Specific.Library.IOWorkerQueueHasItems),
1983 AFSReleaseResource( &pDevExt->Specific.Library.IOQueueLock);
1989 AFSQueueWorkerRequest( IN AFSWorkItem *WorkItem)
1992 NTSTATUS ntStatus = STATUS_SUCCESS;
1993 AFSDeviceExt *pDevExt = NULL;
1994 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
1997 // Submit the work item to the worker
2000 ntStatus = AFSInsertWorkitem( WorkItem);
2006 // Sync request so block on the work item event
2009 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2020 AFSQueueIOWorkerRequest( IN AFSWorkItem *WorkItem)
2023 NTSTATUS ntStatus = STATUS_SUCCESS;
2024 AFSDeviceExt *pDevExt = NULL;
2025 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
2028 // Submit the work item to the worker
2031 ntStatus = AFSInsertIOWorkitem( WorkItem);
2037 // Sync request so block on the work item event
2040 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2051 AFSQueueWorkerRequestAtHead( IN AFSWorkItem *WorkItem)
2054 NTSTATUS ntStatus = STATUS_SUCCESS;
2055 AFSDeviceExt *pDevExt = NULL;
2056 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
2059 // Submit the work item to the worker
2062 ntStatus = AFSInsertWorkitemAtHead( WorkItem);
2068 // Sync request so block on the work item event
2071 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2082 AFSQueueFlushExtents( IN AFSFcb *Fcb,
2086 NTSTATUS ntStatus = STATUS_SUCCESS;
2087 AFSDeviceExt *pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2088 AFSWorkItem *pWorkItem = NULL;
2094 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2095 AFS_TRACE_LEVEL_VERBOSE,
2096 "AFSQueueFlushExtents Queuing request for FID %08lX-%08lX-%08lX-%08lX\n",
2097 Fcb->ObjectInformation->FileId.Cell,
2098 Fcb->ObjectInformation->FileId.Volume,
2099 Fcb->ObjectInformation->FileId.Vnode,
2100 Fcb->ObjectInformation->FileId.Unique);
2103 // Increment our flush count here just to keep the number of items in the
2104 // queue down. We'll decrement it just below.
2107 lCount = InterlockedIncrement( &Fcb->Specific.File.QueuedFlushCount);
2112 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2113 AFS_TRACE_LEVEL_VERBOSE,
2114 "AFSQueueFlushExtents Max queued items for FID %08lX-%08lX-%08lX-%08lX\n",
2115 Fcb->ObjectInformation->FileId.Cell,
2116 Fcb->ObjectInformation->FileId.Volume,
2117 Fcb->ObjectInformation->FileId.Vnode,
2118 Fcb->ObjectInformation->FileId.Unique);
2120 try_return( ntStatus);
2123 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
2126 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2127 AFS_TRACE_LEVEL_ERROR,
2128 "AFSQueueFlushExtents Failing request, in shutdown\n");
2130 try_return( ntStatus = STATUS_TOO_LATE);
2134 // Allocate our request structure and send it to the worker
2137 pWorkItem = (AFSWorkItem *)AFSLibExAllocatePoolWithTag( NonPagedPool,
2138 sizeof( AFSWorkItem),
2141 if( pWorkItem == NULL)
2144 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2145 AFS_TRACE_LEVEL_ERROR,
2146 "AFSQueueFlushExtents Failed to allocate work item\n");
2148 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2151 RtlZeroMemory( pWorkItem,
2152 sizeof( AFSWorkItem));
2154 pWorkItem->Size = sizeof( AFSWorkItem);
2156 pWorkItem->ProcessID = (ULONGLONG)PsGetCurrentProcessId();
2158 pWorkItem->RequestType = AFS_WORK_FLUSH_FCB;
2160 if ( AuthGroup == NULL)
2163 RtlZeroMemory( &pWorkItem->AuthGroup,
2166 ntStatus = AFSRetrieveValidAuthGroup( Fcb,
2169 &pWorkItem->AuthGroup);
2173 RtlCopyMemory( &pWorkItem->AuthGroup,
2178 pWorkItem->Specific.Fcb.Fcb = Fcb;
2180 lCount = InterlockedIncrement( &Fcb->OpenReferenceCount);
2182 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2183 AFS_TRACE_LEVEL_VERBOSE,
2184 "AFSQueueFlushExtents Increment count on Fcb %08lX Cnt %d\n",
2188 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2189 AFS_TRACE_LEVEL_VERBOSE,
2190 "AFSQueueFlushExtents Workitem %08lX for FID %08lX-%08lX-%08lX-%08lX\n",
2192 Fcb->ObjectInformation->FileId.Cell,
2193 Fcb->ObjectInformation->FileId.Volume,
2194 Fcb->ObjectInformation->FileId.Vnode,
2195 Fcb->ObjectInformation->FileId.Unique);
2197 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2201 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2202 AFS_TRACE_LEVEL_VERBOSE,
2203 "AFSQueueFlushExtents Request complete Status %08lX FID %08lX-%08lX-%08lX-%08lX\n",
2204 Fcb->ObjectInformation->FileId.Cell,
2205 Fcb->ObjectInformation->FileId.Volume,
2206 Fcb->ObjectInformation->FileId.Vnode,
2207 Fcb->ObjectInformation->FileId.Unique,
2211 // Remove the count we added above
2214 lCount = InterlockedDecrement( &Fcb->Specific.File.QueuedFlushCount);
2219 KeSetEvent( &Fcb->NPFcb->Specific.File.QueuedFlushEvent,
2224 if( !NT_SUCCESS( ntStatus))
2227 if( pWorkItem != NULL)
2230 lCount = InterlockedDecrement( &Fcb->OpenReferenceCount);
2232 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2235 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2236 AFS_TRACE_LEVEL_ERROR,
2237 "AFSQueueFlushExtents Failed to queue request Status %08lX\n", ntStatus);
2240 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2245 "EXCEPTION - AFSQueueFlushExtents\n");
2247 AFSDumpTraceFilesFnc();
2254 AFSQueueAsyncRead( IN PDEVICE_OBJECT DeviceObject,
2256 IN HANDLE CallerProcess)
2259 NTSTATUS ntStatus = STATUS_SUCCESS;
2260 AFSWorkItem *pWorkItem = NULL;
2265 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2266 AFS_TRACE_LEVEL_VERBOSE,
2267 "AFSQueueAsyncRead Queuing request for Irp %08lX\n",
2270 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2271 sizeof(AFSWorkItem),
2273 if (NULL == pWorkItem)
2276 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2277 AFS_TRACE_LEVEL_ERROR,
2278 "AFSQueueAsyncRead Failed to allocate work item\n");
2280 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2283 RtlZeroMemory( pWorkItem,
2284 sizeof(AFSWorkItem));
2286 pWorkItem->Size = sizeof( AFSWorkItem);
2288 pWorkItem->RequestType = AFS_WORK_ASYNCH_READ;
2290 pWorkItem->Specific.AsynchIo.Device = DeviceObject;
2292 pWorkItem->Specific.AsynchIo.Irp = Irp;
2294 pWorkItem->Specific.AsynchIo.CallingProcess = CallerProcess;
2296 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2297 AFS_TRACE_LEVEL_VERBOSE,
2298 "AFSQueueAsyncRead Workitem %08lX for Irp %08lX\n",
2302 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2306 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2307 AFS_TRACE_LEVEL_VERBOSE,
2308 "AFSQueueAsyncRead Request for Irp %08lX complete Status %08lX\n",
2312 if( !NT_SUCCESS( ntStatus))
2315 if( pWorkItem != NULL)
2318 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2321 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2322 AFS_TRACE_LEVEL_ERROR,
2323 "AFSQueueAsyncRead Failed to queue request Status %08lX\n", ntStatus);
2326 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2331 "EXCEPTION - AFSQueueAsyncRead\n");
2333 AFSDumpTraceFilesFnc();
2340 AFSQueueAsyncWrite( IN PDEVICE_OBJECT DeviceObject,
2342 IN HANDLE CallerProcess)
2345 NTSTATUS ntStatus = STATUS_SUCCESS;
2346 AFSWorkItem *pWorkItem = NULL;
2351 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2352 AFS_TRACE_LEVEL_VERBOSE,
2353 "AFSQueueAsyncWrite Queuing request for Irp %08lX\n",
2356 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2357 sizeof(AFSWorkItem),
2359 if (NULL == pWorkItem)
2362 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2363 AFS_TRACE_LEVEL_ERROR,
2364 "AFSQueueAsyncWrite Failed to allocate work item\n");
2366 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2369 RtlZeroMemory( pWorkItem,
2370 sizeof(AFSWorkItem));
2372 pWorkItem->Size = sizeof( AFSWorkItem);
2374 pWorkItem->RequestType = AFS_WORK_ASYNCH_WRITE;
2376 pWorkItem->Specific.AsynchIo.Device = DeviceObject;
2378 pWorkItem->Specific.AsynchIo.Irp = Irp;
2380 pWorkItem->Specific.AsynchIo.CallingProcess = CallerProcess;
2382 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2383 AFS_TRACE_LEVEL_VERBOSE,
2384 "AFSQueueAsyncWrite Workitem %08lX for Irp %08lX\n",
2388 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2392 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2393 AFS_TRACE_LEVEL_VERBOSE,
2394 "AFSQueueAsyncWrite Request for Irp %08lX complete Status %08lX\n",
2398 if( !NT_SUCCESS( ntStatus))
2401 if( pWorkItem != NULL)
2404 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2407 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2408 AFS_TRACE_LEVEL_ERROR,
2409 "AFSQueueAsyncWrite Failed to queue request Status %08lX\n", ntStatus);
2412 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2417 "EXCEPTION - AFSQueueAsyncWrite\n");
2419 AFSDumpTraceFilesFnc();
2426 AFSQueueGlobalRootEnumeration()
2429 NTSTATUS ntStatus = STATUS_SUCCESS;
2430 AFSWorkItem *pWorkItem = NULL;
2435 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2436 sizeof(AFSWorkItem),
2438 if (NULL == pWorkItem)
2441 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2442 AFS_TRACE_LEVEL_ERROR,
2443 "AFSQueueGlobalRootEnumeration Failed to allocate work item\n");
2445 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2448 RtlZeroMemory( pWorkItem,
2449 sizeof(AFSWorkItem));
2451 pWorkItem->Size = sizeof( AFSWorkItem);
2453 pWorkItem->RequestType = AFS_WORK_ENUMERATE_GLOBAL_ROOT;
2455 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2456 AFS_TRACE_LEVEL_VERBOSE,
2457 "AFSQueueGlobalRootEnumeration Workitem %08lX\n",
2460 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2464 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2465 AFS_TRACE_LEVEL_VERBOSE,
2466 "AFSQueueGlobalRootEnumeration Request complete Status %08lX\n",
2469 if( !NT_SUCCESS( ntStatus))
2472 if( pWorkItem != NULL)
2475 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2478 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2479 AFS_TRACE_LEVEL_ERROR,
2480 "AFSQueueGlobalRootEnumeration Failed to queue request Status %08lX\n",
2484 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2489 "EXCEPTION - AFSQueueGlobalRootEnumeration\n");
2491 AFSDumpTraceFilesFnc();
2498 AFSQueueStartIos( IN PFILE_OBJECT CacheFileObject,
2499 IN UCHAR FunctionCode,
2500 IN ULONG RequestFlags,
2501 IN AFSIoRun *IoRuns,
2503 IN AFSGatherIo *GatherIo)
2506 NTSTATUS ntStatus = STATUS_SUCCESS;
2507 AFSDeviceExt *pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2508 AFSWorkItem *pWorkItem = NULL;
2513 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
2516 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2517 AFS_TRACE_LEVEL_ERROR,
2518 "AFSQueueStartIos Failing request, in shutdown\n");
2520 try_return( ntStatus = STATUS_TOO_LATE);
2524 // Allocate our request structure and send it to the worker
2527 pWorkItem = (AFSWorkItem *)AFSLibExAllocatePoolWithTag( NonPagedPool,
2528 sizeof( AFSWorkItem),
2531 if( pWorkItem == NULL)
2534 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2535 AFS_TRACE_LEVEL_ERROR,
2536 "AFSQueueStartIos Failed to allocate work item\n");
2538 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2541 RtlZeroMemory( pWorkItem,
2542 sizeof( AFSWorkItem));
2544 KeInitializeEvent( &pWorkItem->Event,
2548 pWorkItem->Size = sizeof( AFSWorkItem);
2550 pWorkItem->ProcessID = (ULONGLONG)PsGetCurrentProcessId();
2552 pWorkItem->RequestType = AFS_WORK_START_IOS;
2554 pWorkItem->Specific.CacheAccess.CacheFileObject = CacheFileObject;
2556 pWorkItem->Specific.CacheAccess.FunctionCode = FunctionCode;
2558 pWorkItem->Specific.CacheAccess.RequestFlags = RequestFlags;
2560 pWorkItem->Specific.CacheAccess.IoRuns = IoRuns;
2562 pWorkItem->Specific.CacheAccess.RunCount = RunCount;
2564 pWorkItem->Specific.CacheAccess.GatherIo = GatherIo;
2566 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2567 AFS_TRACE_LEVEL_VERBOSE,
2568 "AFSQueueStartIos Queuing IO Workitem %08lX\n",
2571 ntStatus = AFSQueueIOWorkerRequest( pWorkItem);
2575 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2576 AFS_TRACE_LEVEL_VERBOSE,
2577 "AFSQueueStartIos Request complete Status %08lX\n",
2580 if( !NT_SUCCESS( ntStatus))
2583 if( pWorkItem != NULL)
2586 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2590 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2595 "EXCEPTION - AFSQueueStartIos\n");
2597 AFSDumpTraceFilesFnc();
2604 AFSQueueInvalidateObject( IN AFSObjectInfoCB *ObjectInfo,
2605 IN ULONG InvalidateReason)
2608 NTSTATUS ntStatus = STATUS_SUCCESS;
2609 AFSWorkItem *pWorkItem = NULL;
2614 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2615 sizeof(AFSWorkItem),
2617 if (NULL == pWorkItem)
2620 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2621 AFS_TRACE_LEVEL_ERROR,
2622 "AFSQueueInvalidateObject Failed to allocate work item\n");
2624 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2627 RtlZeroMemory( pWorkItem,
2628 sizeof(AFSWorkItem));
2630 pWorkItem->Size = sizeof( AFSWorkItem);
2632 pWorkItem->RequestType = AFS_WORK_INVALIDATE_OBJECT;
2634 pWorkItem->Specific.Invalidate.ObjectInfo = ObjectInfo;
2636 pWorkItem->Specific.Invalidate.InvalidateReason = InvalidateReason;
2638 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2639 AFS_TRACE_LEVEL_VERBOSE,
2640 "AFSQueueInvalidateObject Workitem %08lX\n",
2643 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2647 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2648 AFS_TRACE_LEVEL_VERBOSE,
2649 "AFSQueueInvalidateObject Request complete Status %08lX\n",
2652 if( !NT_SUCCESS( ntStatus))
2655 if( pWorkItem != NULL)
2657 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2660 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2661 AFS_TRACE_LEVEL_ERROR,
2662 "AFSQueueInvalidateObject Failed to queue request Status %08lX\n",
2666 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
2671 "EXCEPTION - AFSQueueInvalidateObject\n");
2673 AFSDumpTraceFilesFnc();