From e44e0aa3cfa97cddff01704751a4b25151830c72 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 25 Mar 2009 09:13:25 -0700
Subject: [PATCH] dmatest: add dma interrupts and callbacks

Use the callback infrastructure to report driver/hardware hangs or
missed interrupts.  Since this makes the test threads much more
aggressive (from: explicit 1ms sleep to: wait_for_completion) we set the
nice value to 10 so as to not swamp legitimate tasks.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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