8115 parallel zfs mount

*** 24,33 ****
--- 24,34 ----
   */
  
  /*
   * Copyright (c) 2012 by Delphix. All rights reserved.
   * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+  * Copyright 2017 RackTop Systems.
   */
  
  /*
   * condvar.h:
   *
*** 76,94 ****
--- 77,99 ----
  
  extern time_res_t time_res[];
  
  #define TIME_RES_VALID(tr)      (tr >= TR_NANOSEC && tr < TR_COUNT)
  
+ #define CALLOUT_FLAG_ABSOLUTE   0x2
+ 
  /*
   * condition variable function prototypes
   */
  
  extern  void    cv_init(kcondvar_t *, char *, kcv_type_t, void *);
  extern  void    cv_destroy(kcondvar_t *);
  extern  void    cv_wait(kcondvar_t *, kmutex_t *);
  extern  void    cv_wait_stop(kcondvar_t *, kmutex_t *, int);
  extern  clock_t cv_timedwait(kcondvar_t *, kmutex_t *, clock_t);
+ extern  clock_t cv_timedwait_hires(kcondvar_t *, kmutex_t *, hrtime_t, hrtime_t,
+     int);
  extern  clock_t cv_reltimedwait(kcondvar_t *, kmutex_t *, clock_t, time_res_t);
  extern  int     cv_wait_sig(kcondvar_t *, kmutex_t *);
  extern  clock_t cv_timedwait_sig(kcondvar_t *, kmutex_t *, clock_t);
  extern  int     cv_timedwait_sig_hrtime(kcondvar_t *, kmutex_t *, hrtime_t);
  extern  clock_t cv_reltimedwait_sig(kcondvar_t *, kmutex_t *, clock_t,