From c45ce4b5774498ae919f6219c751e824a7196e2b Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Fri, 9 Jan 2009 12:14:58 +0100
Subject: [PATCH] [S390] hvc_iucv: Limit rate of outgoing IUCV messages

This patch introduces a send buffer to limit outgoing IUCV messages up to
a maximum of 25 IUCV messages per second.

If no communication path to a IUCV HVC terminal exist, any data written to
the terminal is discarded.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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