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-rw-r--r--Documentation/s390/CommonIO2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/s390/CommonIO b/Documentation/s390/CommonIO
index 59d1166d41e..d684a6ac69a 100644
--- a/Documentation/s390/CommonIO
+++ b/Documentation/s390/CommonIO
@@ -66,7 +66,7 @@ Command line parameters
When a device is un-ignored, device recognition and sensing is performed and
the device driver will be notified if possible, so the device will become
- available to the system.
+ available to the system. Note that un-ignoring is performed asynchronously.
You can also add ranges of devices to be ignored by piping to
/proc/cio_ignore; "add <device range>, <device range>, ..." will ignore the