[NTOSKRNL] On Cc init, also define CcNumberWorkerThreads which will be used later on

Also make a "default" case (really limited) in case SystemSize doesn't match.

diff --git a/ntoskrnl/cc/view.c b/ntoskrnl/cc/view.c
index 9344a97..99e7b1c 100644 (file)
--- a/ntoskrnl/cc/view.c
+++ b/ntoskrnl/cc/view.c
@@ -66,6 +66,7 @@ ULONG CcLazyWriteIos = 0;
  * - List for "clean" shared cache maps
  * - One second delay for lazy writer
  * - System size when system started
  * - List for "clean" shared cache maps
  * - One second delay for lazy writer
  * - System size when system started

+ * - Number of worker threads

  */
 ULONG CcDirtyPageThreshold = 0;
 ULONG CcTotalDirtyPages = 0;
  */
 ULONG CcDirtyPageThreshold = 0;
 ULONG CcTotalDirtyPages = 0;


@@ -74,6 +75,7 @@ KSPIN_LOCK CcDeferredWriteSpinLock;
 LIST_ENTRY CcCleanSharedCacheMapList;
 LARGE_INTEGER CcIdleDelay = RTL_CONSTANT_LARGE_INTEGER((LONGLONG)-1*1000*1000*10);
 MM_SYSTEMSIZE CcCapturedSystemSize;
 LIST_ENTRY CcCleanSharedCacheMapList;
 LARGE_INTEGER CcIdleDelay = RTL_CONSTANT_LARGE_INTEGER((LONGLONG)-1*1000*1000*10);
 MM_SYSTEMSIZE CcCapturedSystemSize;

+ULONG CcNumberWorkerThreads;

 
 /* Internal vars (ROS):
  * - Event to notify lazy writer to shutdown
 
 /* Internal vars (ROS):
  * - Event to notify lazy writer to shutdown


@@ -1448,21 +1450,31 @@ CcInitView (
     KeInitializeEvent(&iLazyWriterShutdown, SynchronizationEvent, FALSE);
     KeInitializeEvent(&iLazyWriterNotify, NotificationEvent, FALSE);
 
     KeInitializeEvent(&iLazyWriterShutdown, SynchronizationEvent, FALSE);
     KeInitializeEvent(&iLazyWriterNotify, NotificationEvent, FALSE);
 

-    /* Define lazy writer threshold, depending on system type */
+    /* Define lazy writer threshold and the amount of workers,
+      * depending on the system type
+      */

     CcCapturedSystemSize = MmQuerySystemSize();
     switch (CcCapturedSystemSize)
     {
         case MmSmallSystem:
     CcCapturedSystemSize = MmQuerySystemSize();
     switch (CcCapturedSystemSize)
     {
         case MmSmallSystem:

+            CcNumberWorkerThreads = ExCriticalWorkerThreads - 1;

             CcDirtyPageThreshold = MmNumberOfPhysicalPages / 8;
             break;
 
         case MmMediumSystem:
             CcDirtyPageThreshold = MmNumberOfPhysicalPages / 8;
             break;
 
         case MmMediumSystem:

+            CcNumberWorkerThreads = ExCriticalWorkerThreads - 1;

             CcDirtyPageThreshold = MmNumberOfPhysicalPages / 4;
             break;
 
         case MmLargeSystem:
             CcDirtyPageThreshold = MmNumberOfPhysicalPages / 4;
             break;
 
         case MmLargeSystem:

+            CcNumberWorkerThreads = ExCriticalWorkerThreads - 2;

             CcDirtyPageThreshold = MmNumberOfPhysicalPages / 8 + MmNumberOfPhysicalPages / 4;
             break;
             CcDirtyPageThreshold = MmNumberOfPhysicalPages / 8 + MmNumberOfPhysicalPages / 4;
             break;

+
+        default:
+            CcNumberWorkerThreads = 1;
+            CcDirtyPageThreshold = MmNumberOfPhysicalPages / 8;
+            break;

     }
 
     /* Start the lazy writer thread */
     }
 
     /* Start the lazy writer thread */