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MIPS: Octeon: Use non-overflowing arithmetic in sched_clock
authorDavid Daney <ddaney@caviumnetworks.com>
Fri, 8 Jan 2010 22:47:36 +0000 (14:47 -0800)
committerRalf Baechle <ralf@linux-mips.org>
Tue, 12 Jan 2010 17:19:36 +0000 (18:19 +0100)
commit1ce26887ff13d795ab23d32a1cfe05a8ed21308a
treeb8943db01b333cbd3629555e2de92a8670f39404tree | snapshot
parent6ed6f5fefdd3ae8542c9e6a1d2fea981cc8ea057commit | diff
MIPS: Octeon: Use non-overflowing arithmetic in sched_clock

With typical mult and shift values, the calculation for Octeon's sched_clock
overflows when using 64-bit arithmetic.  Use 128-bit calculations instead.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/849/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/cavium-octeon/csrc-octeon.c diff | blob | history
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