PM / hibernate: Correct documentation
Borislav Petkov [Mon, 13 May 2013 12:00:03 +0000 (12:00 +0000)]
Correct the meaning of PM_HIBERNATION_PREPARE in the docs.

References: http://lkml.kernel.org/r/20130512162717.GA6305@pd.tnic
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Documentation/power/notifiers.txt

index c2a4a34..a81fa25 100644 (file)
@@ -15,8 +15,10 @@ A suspend/hibernation notifier may be used for this purpose.
 The subsystems or drivers having such needs can register suspend notifiers that
 will be called upon the following events by the PM core:
 
-PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will
-                       be frozen immediately.
+PM_HIBERNATION_PREPARE The system is going to hibernate, tasks will be frozen
+                       immediately. This is different from PM_SUSPEND_PREPARE
+                       below because here we do additional work between notifiers
+                       and drivers freezing.
 
 PM_POST_HIBERNATION    The system memory state has been restored from a
                        hibernation image or an error occurred during