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-rw-r--r--Documentation/power/swsusp.txt5
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diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index b0d50840788e..cd0fcd89a6f0 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -27,6 +27,11 @@ echo shutdown > /sys/power/disk; echo disk > /sys/power/state
echo platform > /sys/power/disk; echo disk > /sys/power/state
+If you want to limit the suspend image size to N megabytes, do
+
+echo N > /sys/power/image_size
+
+before suspend (it is limited to 500 MB by default).
Encrypted suspend image:
------------------------