Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[sfrench/cifs-2.6.git] / Documentation / fault-injection / notifier-error-inject.txt

diff --git a/Documentation/fault-injection/notifier-error-inject.txt b/Documentation/fault-injection/notifier-error-inject.txt
index 83d3f4e43e91726201ba56392f0723c40927fc67..e861d761de249ffc53c6ec2fcc5d25b6da56487e 100644 (file)
--- a/Documentation/fault-injection/notifier-error-inject.txt
+++ b/Documentation/fault-injection/notifier-error-inject.txt
@@ -6,41 +6,11 @@ specified notifier chain callbacks. It is useful to test the error handling of
 notifier call chain failures which is rarely executed.  There are kernel
 modules that can be used to test the following notifiers.
 
- * CPU notifier
  * PM notifier
  * Memory hotplug notifier
  * powerpc pSeries reconfig notifier
  * Netdevice notifier
 
-CPU notifier error injection module
------------------------------------
-This feature can be used to test the error handling of the CPU notifiers by
-injecting artificial errors to CPU notifier chain callbacks.
-
-If the notifier call chain should be failed with some events notified, write
-the error code to debugfs interface
-/sys/kernel/debug/notifier-error-inject/cpu/actions/<notifier event>/error
-
-Possible CPU notifier events to be failed are:
-
- * CPU_UP_PREPARE
- * CPU_UP_PREPARE_FROZEN
- * CPU_DOWN_PREPARE
- * CPU_DOWN_PREPARE_FROZEN
-
-Example1: Inject CPU offline error (-1 == -EPERM)
-
-       # cd /sys/kernel/debug/notifier-error-inject/cpu
-       # echo -1 > actions/CPU_DOWN_PREPARE/error
-       # echo 0 > /sys/devices/system/cpu/cpu1/online
-       bash: echo: write error: Operation not permitted
-
-Example2: inject CPU online error (-2 == -ENOENT)
-
-       # echo -2 > actions/CPU_UP_PREPARE/error
-       # echo 1 > /sys/devices/system/cpu/cpu1/online
-       bash: echo: write error: No such file or directory
-
 PM notifier error injection module
 ----------------------------------
 This feature is controlled through debugfs interface