From ccb89ed8b9afe48ba0f91404353f68628d5fb485 Mon Sep 17 00:00:00 2001
From: Martin Pieuchot <mpi@cvs.openbsd.org>
Date: Fri, 1 Nov 2019 19:13:53 +0000
Subject: Document that p_{sp,pc}inentry are owned by the current thread.

---
 sys/sys/proc.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'sys')

diff --git a/sys/sys/proc.h b/sys/sys/proc.h
index 118cec245ff..e6e3408ec68 100644
--- a/sys/sys/proc.h
+++ b/sys/sys/proc.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: proc.h,v 1.275 2019/10/22 21:19:22 cheloha Exp $	*/
+/*	$OpenBSD: proc.h,v 1.276 2019/11/01 19:13:52 mpi Exp $	*/
 /*	$NetBSD: proc.h,v 1.44 1996/04/22 01:23:21 christos Exp $	*/
 
 /*-
@@ -318,6 +318,7 @@ struct p_inentry {
  *	I	immutable after creation
  *	s	scheduler lock
  *	l	read only reference, see lim_read_enter()
+ *	o	owned (read/modified only) by this thread
  */
 struct proc {
 	TAILQ_ENTRY(proc) p_runq;	/* [s] current run/sleep queue */
@@ -332,8 +333,8 @@ struct proc {
 	/* substructures: */
 	struct	filedesc *p_fd;		/* copy of p_p->ps_fd */
 	struct	vmspace *p_vmspace;	/* [I] copy of p_p->ps_vmspace */
-	struct	p_inentry p_spinentry;
-	struct	p_inentry p_pcinentry;
+	struct	p_inentry p_spinentry;	/* [o] cache for SP check */
+	struct	p_inentry p_pcinentry;	/* [o] cache for PC check */
 	struct	plimit	*p_limit;	/* [l] read ref. of p_p->ps_limit */
 
 	int	p_flag;			/* P_* flags. */
-- 
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