diff -r c1f20ce4abcf -r 3e88ff8f41d5 kernel/eka/memmodel/epoc/flexible/mmu/mpager.h
--- a/kernel/eka/memmodel/epoc/flexible/mmu/mpager.h	Tue Aug 31 16:34:26 2010 +0300
+++ b/kernel/eka/memmodel/epoc/flexible/mmu/mpager.h	Wed Sep 01 12:34:56 2010 +0100
@@ -152,20 +152,6 @@
 	void FlushAll();
 
 	/**
-	Flush demand paged pages in a specified region.
-
-	The memory must reside in a single memory object.
-	
-	@param aProcess The process containing the pages to flush.
-	@param aStart   The start address of the region.
-	@param aSize    The size of the region in bytes.
-
-	@return KErrBadDescriptor If the memory region is invalid or spans more than one memory object,
-	                          otherwise KErrNone.
-	*/
-	TInt FlushRegion(DMemModelProcess* aProcess, TLinAddr aStartAddress, TUint aSize);
-
-	/**
 	Give pages to paging system for managing.
 	*/
 	void DonatePages(TUint aCount, TPhysAddr* aPages);
@@ -418,23 +404,6 @@
 	*/
 	void SetCleanInSequence(TBool aCleanInSequence);
 
-	/**
-	Generate a new error code that includes both the original error code and some extra context
-	information.  This is used to communicate context information from where it occurs to where it
-	is handled.
-	*/
-	TInt EmbedErrorContext(TPagingErrorContext aContext, TInt aError);
-
-	/**
-	Extract the context information from a error code generated by #EmbedErrorContext.
-	*/
-	static TPagingErrorContext ExtractErrorContext(TInt aContextError);
-
-	/**
-	Extract the original error code from a error code generated by #EmbedErrorContext.
-	*/
-	static TInt ExtractErrorCode(TInt aContextError);
-
 private:
 	/**
 	Add a page to the head of the live page list. I.e. make it the 'youngest' page.
@@ -657,12 +626,6 @@
 	TBool ReservePage();
 
 	/**
-	Determine the thread responsible for this page fault.  This returns either NULL to indicate
-	the current thread, or a remote thread if the fault is caused by an IPC operation.
-	*/
-	DThread* ResponsibleThread(DThread* aThread, TAny* aExceptionInfo);
-
-	/**
 	Called when a realtime thread takes a paging fault.
 	Checks whether it's OK for the thread to take to fault.
 	@return KErrNone if the paging fault should be further processed
@@ -670,20 +633,6 @@
 	TInt CheckRealtimeThreadFault(DThread* aThread, TAny* aExceptionInfo);
 	
 	/**
-	Kills the thread responsible for causing a page fault.
-
-	This is called when a fatal error is encountered when handling a page fault, for example, if a
-	media access fails.
-
-	Originally the paging system reacted by faulting the system in such cases.  However the current
-	approach was thought to be preferable as this kind of error can happen in practice (even though
-	in theory it should not) and it means that the error code is reported and can be captured by
-	MobileCrash.
-	*/
-	void KillResponsibleThread(TPagingErrorContext aErrorCategory, TInt aErrorCode,
-							   TAny* aExceptionInfo);
-	
-	/**
 	Attempt to find the page table entry and page info for a page in the specified mapping.
 
 	@param aOsAsid				The OsAsid of the process that owns the mapping.
@@ -745,53 +694,11 @@
 	TSpinLock iBenchmarkLock;
 	SPagingBenchmarkInfo iBenchmarkInfo[EMaxPagingBm];
 #endif //__DEMAND_PAGING_BENCHMARKS__
-
-#ifdef _DEBUG
-	TPagingErrorContext iDebugFailContext;
-#endif
 	};
 
 extern DPager ThePager;
 
 
-// Functions to embed context information into error codes, using the following scheme:
-//
-// bits 0-16   taken from original error code
-// bits 16-31  bitwise NOT of a TPagingErrorContext value
-//
-// Since the context informtion is a small positive integer, the resulting error code is still a
-// negative integer.  The value EPagingErrorContextNone is zero, yeilding the original error code
-// unchanged if embedded.
-
-inline TInt DPager::EmbedErrorContext(TPagingErrorContext aContext, TInt aError)
-	{
-	__NK_ASSERT_DEBUG(aContext > 0 && aContext <= 0x7fff);
-#ifdef _DEBUG
-	if (aError >= KErrNone)
-		{
-		TUint32 match = aContext;
-		if (__e32_atomic_cas_ord32(&iDebugFailContext, &match, 0))
-			aError = KErrAbort;
-		}
-#endif
-	if (aError >= KErrNone)
-		return aError;
-	if (aError < (TInt)0xffff0000)
-		aError = KErrGeneral;  // lose error code, but doesn't happen in practice
-	return (aError & 0x0000ffff) | ((~aContext) << 16);
-	}
-
-inline TPagingErrorContext DPager::ExtractErrorContext(TInt aContextError)
-	{
-	return (TPagingErrorContext)((~aContextError) >> 16);
-	}
-
-inline TInt DPager::ExtractErrorCode(TInt aContextError)
-	{
-	return aContextError | 0x7fff000;
-	}
-
-
 #ifdef __DEMAND_PAGING_BENCHMARKS__
 
 #define START_PAGING_BENCHMARK TUint32 _bmStart = NKern::FastCounter()
@@ -1092,4 +999,5 @@
 	static void Init();	
 	};
 
+
 #endif