[src/trunk]: src/sys/sys Mark spc_curpriority volatile.

[ad <ad%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d829019bf03a
branches:  trunk
changeset: 465629:d829019bf03a
user:      ad <ad%NetBSD.org@localhost>
date:      Sat Nov 30 17:46:27 2019 +0000

description:
Mark spc_curpriority volatile.

diffstat:

 sys/sys/sched.h |  7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diffs (27 lines):

diff -r 783aca20d869 -r d829019bf03a sys/sys/sched.h
--- a/sys/sys/sched.h   Sat Nov 30 17:45:54 2019 +0000
+++ b/sys/sys/sched.h   Sat Nov 30 17:46:27 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sched.h,v 1.77 2019/11/23 19:42:52 ad Exp $    */
+/*     $NetBSD: sched.h,v 1.78 2019/11/30 17:46:27 ad Exp $    */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2002, 2007, 2008, 2019
@@ -154,16 +154,13 @@
  * c:  cpu_lock
  */
 struct schedstate_percpu {
-       /* First set of data is likely to be accessed by other CPUs. */
        kmutex_t        *spc_mutex;     /* (: lock on below, runnable LWPs */
        kmutex_t        *spc_lwplock;   /* (: general purpose lock for LWPs */
        struct lwp      *spc_migrating; /* (: migrating LWP */
-       pri_t           spc_curpriority;/* m: usrpri of curlwp */
+       volatile pri_t  spc_curpriority;/* m: usrpri of curlwp */
        pri_t           spc_maxpriority;/* m: highest priority queued */
        psetid_t        spc_psid;       /* c: processor-set ID */
        time_t          spc_lastmod;    /* c: time of last cpu state change */
-
-       /* For the most part, this set of data is CPU-private. */
        void            *spc_sched_info;/* (: scheduler-specific structure */
        volatile int    spc_flags;      /* s: flags; see below */
        u_int           spc_schedticks; /* s: ticks for schedclock() */