cpusets docs - mention notify_on_release

Index: 2.6.12-pj/Documentation/cpusets.txt
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@@ -166,6 +166,7 @@ containing the following files describin
  - mems: list of Memory Nodes in that cpuset
  - cpu_exclusive flag: is cpu placement exclusive?
  - mem_exclusive flag: is memory placement exclusive?
+ - notify_on_release: call /sbin/cpuset_release_agent on exit if set
  - tasks: list of tasks (by pid) attached to that cpuset
 
 New cpusets are created using the mkdir system call or shell

@@ -333,7 +334,7 @@ Now you want to do something with this c
 
 In this directory you can find several files:
 # ls
-cpus  cpu_exclusive  mems  mem_exclusive  tasks
+cpus  cpu_exclusive  mems  mem_exclusive  notify_on_release  tasks
 
 Reading them will give you information about the state of this cpuset:
 the CPUs and Memory Nodes it can use, the processes that are using