Module Name: src
Committed By: ad
Date: Thu Oct 5 19:10:18 UTC 2023
Modified Files:
src/sys/kern: kern_idle.c
Log Message:
The idle LWP doesn't need to care about kernel_lock.
To generate a diff of this commit:
cvs rdiff -u -r1.34 -r1.35 src/sys/kern/kern_idle.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_idle.c
diff -u src/sys/kern/kern_idle.c:1.34 src/sys/kern/kern_idle.c:1.35
--- src/sys/kern/kern_idle.c:1.34 Sat Sep 5 16:30:12 2020
+++ src/sys/kern/kern_idle.c Thu Oct 5 19:10:18 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_idle.c,v 1.34 2020/09/05 16:30:12 riastradh Exp $ */
+/* $NetBSD: kern_idle.c,v 1.35 2023/10/05 19:10:18 ad Exp $ */
/*-
* Copyright (c)2002, 2006, 2007 YAMAMOTO Takashi,
@@ -28,7 +28,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_idle.c,v 1.34 2020/09/05 16:30:12 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_idle.c,v 1.35 2023/10/05 19:10:18 ad Exp $");
#include <sys/param.h>
#include <sys/cpu.h>
@@ -48,6 +48,8 @@ idle_loop(void *dummy)
struct schedstate_percpu *spc;
struct lwp *l = curlwp;
+ KASSERT(l->l_blcnt == 0);
+
lwp_lock(l);
spc = &ci->ci_schedstate;
KASSERT(lwp_locked(l, spc->spc_lwplock));
@@ -65,7 +67,6 @@ idle_loop(void *dummy)
* in which case we took an odd route to get here.
*/
spl0();
- KERNEL_UNLOCK_ALL(l, NULL);
for (;;) {
LOCKDEBUG_BARRIER(NULL, 0);
