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diff --git a/Documentation/timers/timers-howto.rst b/Documentation/timers/timers-howto.rst
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+++ b/Documentation/timers/timers-howto.rst
@@ -110,3 +110,6 @@ NON-ATOMIC CONTEXT:
short, the difference is whether the sleep can be ended
early by a signal. In general, just use msleep unless
you know you have a need for the interruptible variant.
+
+ FLEXIBLE SLEEPING (any delay, uninterruptible)
+ * Use fsleep