Make sure to initialize our page operation mutex.

Scan the whole range of the MemoryArea for pages to evict.
This fixes cache section page eviction.

svn path=/trunk/; revision=50134

reactos/ntoskrnl/cache/fssup.c

@@ -25,6 +25,7 @@ extern VOID NTAPI CcpUnmapThread(PVOID Unused);
 extern VOID NTAPI CcpLazyWriteThread(PVOID Unused);
 HANDLE CcUnmapThreadHandle, CcLazyWriteThreadHandle;
 CLIENT_ID CcUnmapThreadId, CcLazyWriteThreadId;
+FAST_MUTEX GlobalPageOperation;
 
 typedef struct _NOCC_PRIVATE_CACHE_MAP
 {
@@ -98,6 +99,7 @@ CcInitializeCacheManager(VOID)
 	CcCacheBitmap->SizeOfBitMap = ROUND_UP(CACHE_NUM_SECTIONS, 32);
 	DPRINT("Cache has %d entries\n", CcCacheBitmap->SizeOfBitMap);
 	ExInitializeFastMutex(&CcMutex);
+	ExInitializeFastMutex(&GlobalPageOperation);
 
 	// MM stub
 	KeInitializeEvent(&MmWaitPageEvent, SynchronizationEvent, FALSE);

reactos/ntoskrnl/cache/section/swapout.c

@@ -480,8 +480,8 @@ MiCacheEvictPages(PVOID BaseAddress, ULONG Target)
 	MmLockCacheSectionSegment(Segment);
 
 	for (i = 0; 
-		 i < Segment->Length.QuadPart - 
-			 MemoryArea->Data.CacheData.ViewOffset.QuadPart && 
+		 i < ((ULONG_PTR)MemoryArea->EndingAddress) - 
+			 ((ULONG_PTR)MemoryArea->StartingAddress) && 
 			 Result < Target; 
 		 i += PAGE_SIZE) {
 		Offset.QuadPart = MemoryArea->Data.CacheData.ViewOffset.QuadPart + i;