OS-7753 THREAD_KPRI_RELEASE does nothing of the sort
Reviewed by: Bryan Cantrill <bryan@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

          --- old/usr/src/uts/common/sys/ia.h
          +++ new/usr/src/uts/common/sys/ia.h

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License, Version 1.0 only
   6    6   * (the "License").  You may not use this file except in compliance
   7    7   * with the License.
   8    8   *
   9    9   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10   10   * or http://www.opensolaris.org/os/licensing.
  11   11   * See the License for the specific language governing permissions
  12   12   * and limitations under the License.
  13   13   *
  14   14   * When distributing Covered Code, include this CDDL HEADER in each

  15   15   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16   16   * If applicable, add the following below this CDDL HEADER, with the
  17   17   * fields enclosed by brackets "[]" replaced with your own identifying
  18   18   * information: Portions Copyright [yyyy] [name of copyright owner]
  19   19   *
  20   20   * CDDL HEADER END
  21   21   */
  22   22  /*
  23   23   * Copyright (c) 1997-1998 by Sun Microsystems, Inc.
  24   24   * All rights reserved.
       25 + * Copyright 2019 Joyent, Inc.
  25   26   */
  26   27  
  27   28  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28   29  /*        All Rights Reserved   */
  29   30  
  30   31  
  31   32  #ifndef _SYS_IA_H
  32   33  #define _SYS_IA_H
  33   34  
  34   35  #include <sys/types.h>

  35   36  #include <sys/thread.h>
  36   37  
  37   38  #ifdef  __cplusplus
  38   39  extern "C" {
  39   40  #endif
  40   41  
  41   42  #define dcmn_err        if (ia_debug) cmn_err
  42   43  #define IA_OFF_QUANTUM  1
  43   44  #define IA_OFF_PRIORITY 20
  44   45  #define iaumdpri        (iapp->ia_umdpri)
  45   46  #define iamedumdpri     (ia_maxumdpri >> 1)
  46   47  
  47   48  /*
  48   49   * interactive dispatcher parameter table entry
  49   50   */
  50   51  typedef struct iadpent {
  51   52          pri_t   ia_globpri;     /* global (class independent) priority */
  52   53          long    ia_quantum;     /* time quantum given to procs at this level */
  53   54          pri_t   ia_tqexp;       /* ia_umdpri assigned when proc at this level */
  54   55                                  /*   exceeds its time quantum */
  55   56          pri_t   ia_slpret;      /* ia_umdpri assigned when proc at this level */
  56   57                                  /*  returns to user mode after sleeping */
  57   58          short   ia_maxwait;     /* bumped to ia_lwait if more than ia_maxwait */
  58   59                                  /*  secs elapse before receiving full quantum */
  59   60          short   ia_lwait;       /* ia_umdpri assigned if ia_dispwait exceeds  */
  60   61                                  /*  ia_maxwait */
  61   62  } iadpent_t;
  62   63  
  63   64  
  64   65  /*
  65   66   * time-sharing class specific thread structure
  66   67   */
  67   68  typedef struct iaproc {
  68   69          long    ia_timeleft;    /* time remaining in procs quantum */
  69   70          pri_t   ia_cpupri;      /* system controlled component of ia_umdpri */
  70   71          pri_t   ia_uprilim;     /* user priority limit */
  71   72          pri_t   ia_upri;        /* user priority */
  72   73          pri_t   ia_umdpri;      /* user mode priority within ia class */
  73   74          char    ia_nice;        /* nice value for compatibility */
  74   75          unsigned char ia_flags; /* flags defined below */
  75   76          short   ia_dispwait;    /* number of wall clock seconds since start */
  76   77                                  /*   of quantum (not reset upon preemption */
  77   78          kthread_t *ia_tp;       /* pointer to thread */

  78   79          int     *ia_pstatp;     /* pointer to p_stat */
  79   80          pri_t   *ia_pprip;      /* pointer to t_pri */
  80   81          uint_t  *ia_pflagp;     /* pointer to p_flag */
  81   82          struct iaproc *ia_next; /* link to next iaproc on list */
  82   83          struct iaproc *ia_prev; /* link to previous iaproc on list */
  83   84          int     ia_mode;        /* interactive on/off */
  84   85  } iaproc_t;
  85   86  
  86   87  
  87   88  /* flags */
  88      -#define IAKPRI  0x01    /* thread at kernel mode priority */
       89 +/* Formerly: IAKPRI 0x01 - thread at kernel model priority */
  89   90  #define IABACKQ 0x02    /* thread goes to back of disp q when preempted */
  90   91  #define IASLEPT 0x04    /* thread had long-term suspend - give new slice */
  91   92  
  92   93  
  93   94  #ifdef  __cplusplus
  94   95  }
  95   96  #endif
  96   97  
  97   98  #endif  /* _SYS_IA_H */
    

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