Module Name: src
Committed By: riastradh
Date: Wed Feb 28 04:14:47 UTC 2024
Modified Files:
src/sys/kern: kern_heartbeat.c
Log Message:
heartbeat(9): Restore still-applicable comment nixed in last commit.
The nesting depth is stored in ci_heartbeat_suspend which is 32-bit.
To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.12 src/sys/kern/kern_heartbeat.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/kern_heartbeat.c
diff -u src/sys/kern/kern_heartbeat.c:1.11 src/sys/kern/kern_heartbeat.c:1.12
--- src/sys/kern/kern_heartbeat.c:1.11 Wed Feb 28 04:12:59 2024
+++ src/sys/kern/kern_heartbeat.c Wed Feb 28 04:14:47 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_heartbeat.c,v 1.11 2024/02/28 04:12:59 riastradh Exp $ */
+/* $NetBSD: kern_heartbeat.c,v 1.12 2024/02/28 04:14:47 riastradh Exp $ */
/*-
* Copyright (c) 2023 The NetBSD Foundation, Inc.
@@ -82,7 +82,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_heartbeat.c,v 1.11 2024/02/28 04:12:59 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_heartbeat.c,v 1.12 2024/02/28 04:14:47 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@@ -132,8 +132,8 @@ void *heartbeat_sih __read_mostly;
*
* Called after the current CPU has been marked offline but before
* it has stopped running, or after IPL has been raised for
- * polling-mode console input. Nestable. Reversed by
- * heartbeat_resume.
+ * polling-mode console input. Nestable (but only 2^32 times, so
+ * don't do this in a loop). Reversed by heartbeat_resume.
*
* Caller must be bound to the CPU, i.e., curcpu_stable() must be
* true. This function does not assert curcpu_stable() since it
