From: David S. Miller <davem@davemloft.net>
Date: Sun, 24 Sep 2006 01:31:42 +0000 (-0700)
Subject: [SPARC64]: Fix sched_clock() wrapping every ~17 seconds.
X-Git-Tag: v2.6.19-rc1~1268
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e17ba8f51f69782abc4575dd30848ba5eafaa797;p=pandora-kernel.git

[SPARC64]: Fix sched_clock() wrapping every ~17 seconds.

Unfortunately, sparc64 doesn't have an easy way to do a "64 X 64 -->
128" bit multiply like PowerPC and IA64 do.  We were doing a
"64 X 64 --> 64" bit multiple which causes overflow very quickly with
a 30-bit quotient shift.

So use a quotientshift count of 10 instead of 30, just like x86 and
ARM do.

This also fixes the wrapping of printk timestamp values every ~17
seconds.

Signed-off-by: David S. Miller <davem@davemloft.net>
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