11909 THREAD_KPRI_RELEASE does nothing of the sort
Reviewed by: Bryan Cantrill <bryan@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

*** 20,29 ****
--- 20,30 ----
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1997-1998 by Sun Microsystems, Inc.
   * All rights reserved.
+  * Copyright 2019 Joyent, Inc.
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
  
*** 83,93 ****
          int     ia_mode;        /* interactive on/off */
  } iaproc_t;
  
  
  /* flags */
! #define IAKPRI  0x01    /* thread at kernel mode priority */
  #define IABACKQ 0x02    /* thread goes to back of disp q when preempted */
  #define IASLEPT 0x04    /* thread had long-term suspend - give new slice */
  
  
  #ifdef  __cplusplus
--- 84,94 ----
          int     ia_mode;        /* interactive on/off */
  } iaproc_t;
  
  
  /* flags */
! /* Formerly: IAKPRI 0x01 - thread at kernel model priority */
  #define IABACKQ 0x02    /* thread goes to back of disp q when preempted */
  #define IASLEPT 0x04    /* thread had long-term suspend - give new slice */
  
  
  #ifdef  __cplusplus