From 440a8a36792bdf9ef51639066aab0b7771ffcab8 Mon Sep 17 00:00:00 2001
From: Patrick Mooney <pmooney@pfmooney.com>
Date: Wed, 9 Nov 2016 22:09:53 +0000
Subject: 12789 increase timers allowed per-process Reviewed by: Ryan Zezeski
 <rpz@joyent.com> Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
 Reviewed by: John Levon <john.levon@joyent.com> Reviewed by: Dan McDonald
 <danmcd@joyent.com> Approved by: Robert Mustacchi <rm@fingolfin.org>

---
 usr/src/uts/common/sys/timer.h | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'usr/src/uts/common/sys/timer.h')

diff --git a/usr/src/uts/common/sys/timer.h b/usr/src/uts/common/sys/timer.h
index ec349c962f..4bbc5b4fb8 100644
--- a/usr/src/uts/common/sys/timer.h
+++ b/usr/src/uts/common/sys/timer.h
@@ -25,7 +25,7 @@
  */
 
 /*
- * Copyright (c) 2015, Joyent, Inc. All rights reserved.
+ * Copyright 2020 Joyent, Inc.
  */
 
 #ifndef	_SYS_TIMER_H
@@ -34,6 +34,7 @@
 #include <sys/types.h>
 #include <sys/proc.h>
 #include <sys/thread.h>
+#include <sys/param.h>
 
 #ifdef	__cplusplus
 extern "C" {
@@ -42,7 +43,15 @@ extern "C" {
 #ifdef	_KERNEL
 
 #define	_TIMER_MAX	32
-extern	int	timer_max;		/* patchable via /etc/system */
+/*
+ * Max timers per process.  This is patchable via /etc/system and can be
+ * updated via kmdb.  Sticking to positive powers of 2 is recommended.
+ * The default value is 4 * NCPU. Setting timer_max to a value below the
+ * default via /etc/system is ignored.
+ */
+extern	int	timer_max;
+
+#define	_TIMER_ALLOC_INIT	8	/* initial size for p_itimer array */
 
 /*
  * Bit values for the it_lock field.
-- 
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