git: time: Add functions to calculate time difference

[Sepherosa Ziehau]

commit 492cb20db43bb05df28bada936a63f5d65fd502d
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date:   Sat Jan 25 21:05:04 2014 +0800

    time: Add functions to calculate time difference
    
    Caller MUST make sure that the two time measured is on the same CPU.

Summary of changes:
 sys/sys/{linux_types.h => microtime_pcpu.h} | 56 +++++++++++++++++++++--------
 1 file changed, 41 insertions(+), 15 deletions(-)
 copy sys/sys/{linux_types.h => microtime_pcpu.h} (66%)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/492cb20db43bb05df28bada936a63f5d65fd502d


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