diff -urNp --exclude CVS --exclude BitKeeper x-ref/include/linux/sysctl.h x/include/linux/sysctl.h
--- x-ref/include/linux/sysctl.h	2003-07-17 04:20:28.000000000 +0200
+++ x/include/linux/sysctl.h	2003-07-17 04:20:30.000000000 +0200
@@ -154,6 +154,7 @@ enum
 	VM_CACHE_SCAN_RATIO=19,	/* part of the inactive cache list to scan */
 	VM_MAPPED_RATIO=20,	/* amount of unfreeable pages that triggers swapout */
 	VM_ANON_LRU=21,		/* immediatly insert anon pages in the vm page lru */
+	VM_PAGEBUF=22,		/* struct: Control pagebuf parameters */
 };