[CIFS] CIFS Stats improvements

New cifs_writepages routine was not updated bytes written in cifs stats.
Also added ability to clear /proc/fs/cifs/Stats by writing (0 or 1) to it.
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h
index bf24d28..4304d9d 100644
--- a/fs/cifs/cifs_debug.h
+++ b/fs/cifs/cifs_debug.h
@@ -26,6 +26,9 @@
 void cifs_dump_mem(char *label, void *data, int length);
 extern int traceSMB;		/* flag which enables the function below */
 void dump_smb(struct smb_hdr *, int);
+#define CIFS_INFO	0x01
+#define CIFS_RC  	0x02
+#define CIFS_TIMER	0x04
 
 /*
  *	debug ON
@@ -36,7 +39,7 @@
 
 /* information message: e.g., configuration, major event */
 extern int cifsFYI;
-#define cifsfyi(format,arg...) if (cifsFYI) printk(KERN_DEBUG " " __FILE__ ": " format "\n" "" , ## arg)
+#define cifsfyi(format,arg...) if (cifsFYI & CIFS_INFO) printk(KERN_DEBUG " " __FILE__ ": " format "\n" "" , ## arg)
 
 #define cFYI(button,prspec) if (button) cifsfyi prspec