sched_clock: Use an hrtimer instead of timer

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In the next patch we're going to increase the number of bits that
the generic sched_clock can handle to be greater than 32. With
more than 32 bits the wraparound time can be larger than what can
fit into the units that msecs_to_jiffies takes (unsigned int).
Luckily, the wraparound is initially calculated in nanoseconds
which we can easily use with hrtimers, so switch to using an
hrtimer.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[jstultz: Fixup hrtimer intitialization order issue]
Signed-off-by: John Stultz <john.stultz@linaro.org>

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Stephen Boyd 2013-07-18 16:21:16 -07:00 • committed by John Stultz

parent 85c3d2dd15

commit a08ca5d108

1 changed files with 21 additions and 17 deletions

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kernel/time/sched_clock.c

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