diff -r 0ff03867bdb6 -r 39b39e1a406e userlibandfileserver/fileserver/sfile/sf_cache_client.h
--- a/userlibandfileserver/fileserver/sfile/sf_cache_client.h	Wed Jul 21 14:46:58 2010 +0100
+++ b/userlibandfileserver/fileserver/sfile/sf_cache_client.h	Thu Jul 22 16:46:39 2010 +0100
@@ -57,6 +57,7 @@
 	TBool SegmentEmpty(TInt64 aPos);
 	TBool SegmentDirty(TInt64 aPos);
 	TBool TooManyLockedSegments();
+	TBool LockedSegmentsHalfUsed();
 
 	inline TInt CacheOffset(TInt64 aLinAddr) const \
 		{return(I64LOW(aLinAddr)& ((1 << iManager.SegmentSizeLog2())-1));}