From ca538f6bbe583406f941f3041d40c41f9a13d1de Mon Sep 17 00:00:00 2001
From: Tim Bird <tim.bird@am.sony.com>
Date: Thu, 9 Oct 2008 15:23:05 -0700
Subject: [PATCH] tracing/fastboot: add better resolution to initcall
 debug/tracing

Change the time resolution for initcall_debug to microseconds, from
milliseconds.  This is handy to determine which initcalls you want to work
on for faster booting.

One one of my test machines, over 90% of the initcalls are less than a
millisecond and (without this patch) these are all reported as 0 msecs.
Working on the 900 us ones is more important than the 4 us ones.

With 'quiet' on the kernel command line, this adds no significant overhead
to kernel boot time.

Signed-off-by: Tim Bird <tim.bird@am.sony.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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