Rename check_tsc() (and similar) to timer_check() and use u32.

Rename the check_tsc() function to timer_check().  The CPU TSC is
often not the basis of the timer, so use a more appropriate name.

Convert all callers that were using u64 for the timers to use u32.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
13 files changed