Module Name: src
Committed By: thorpej
Date: Sat May 1 13:23:07 UTC 2021
Modified Files:
src/sys/arch/alpha/include: userret.h
Log Message:
Make sure preemption is disabled around PMAP_USERRET(); it uses
per-cpu information.
XXX mi_userret() also internally disables preemption. Should restructure
these to remove redundancies.
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/arch/alpha/include/userret.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/alpha/include/userret.h
diff -u src/sys/arch/alpha/include/userret.h:1.10 src/sys/arch/alpha/include/userret.h:1.11
--- src/sys/arch/alpha/include/userret.h:1.10 Mon Feb 6 02:14:13 2012
+++ src/sys/arch/alpha/include/userret.h Sat May 1 13:23:07 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: userret.h,v 1.10 2012/02/06 02:14:13 matt Exp $ */
+/* $NetBSD: userret.h,v 1.11 2021/05/01 13:23:07 thorpej Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -103,7 +103,9 @@ userret(struct lwp *l)
struct proc *p = l->l_proc;
/* Do any deferred user pmap operations. */
+ KPREEMPT_DISABLE(l);
PMAP_USERRET(vm_map_pmap(&p->p_vmspace->vm_map));
+ KPREEMPT_ENABLE(l);
/* Invoke MI userret code */
mi_userret(l);
