Index: linux-2.6.13-ck7/Documentation/sysctl/vm.txt
===================================================================
--- linux-2.6.13-ck7.orig/Documentation/sysctl/vm.txt	2005-03-02 18:38:17.000000000 +1100
+++ linux-2.6.13-ck7/Documentation/sysctl/vm.txt	2005-10-06 23:10:54.000000000 +1000
@@ -26,6 +26,7 @@ Currently, these files are in /proc/sys/
 - min_free_kbytes
 - laptop_mode
 - block_dump
+- swap_prefetch
 
 ==============================================================
 
@@ -102,3 +103,14 @@ This is used to force the Linux VM to ke
 of kilobytes free.  The VM uses this number to compute a pages_min
 value for each lowmem zone in the system.  Each lowmem zone gets 
 a number of reserved free pages based proportionally on its size.
+
+==============================================================
+
+swap_prefetch
+
+This is the amount of data prefetched per prefetching interval when
+swap prefetching is compiled in. The value means multiples of 128K,
+except when laptop_mode is enabled and then it is ten times larger.
+Setting it to 0 disables prefetching entirely.
+
+The default value is 2.