Module Name: src
Committed By: maxv
Date: Tue Aug 18 17:04:38 UTC 2020
Modified Files:
src/sys/dev/nvmm: nvmm.c
Log Message:
nvmm: use relaxed atomics to read nmachines
To generate a diff of this commit:
cvs rdiff -u -r1.34 -r1.35 src/sys/dev/nvmm/nvmm.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/dev/nvmm/nvmm.c
diff -u src/sys/dev/nvmm/nvmm.c:1.34 src/sys/dev/nvmm/nvmm.c:1.35
--- src/sys/dev/nvmm/nvmm.c:1.34 Tue Aug 18 17:03:58 2020
+++ src/sys/dev/nvmm/nvmm.c Tue Aug 18 17:04:37 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: nvmm.c,v 1.34 2020/08/18 17:03:58 maxv Exp $ */
+/* $NetBSD: nvmm.c,v 1.35 2020/08/18 17:04:37 maxv Exp $ */
/*
* Copyright (c) 2018-2020 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nvmm.c,v 1.34 2020/08/18 17:03:58 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nvmm.c,v 1.35 2020/08/18 17:04:37 maxv Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -1218,7 +1218,7 @@ nvmm_attach(device_t parent, device_t se
static int
nvmm_detach(device_t self, int flags)
{
- if (nmachines > 0)
+ if (atomic_load_relaxed(&nmachines) > 0)
return EBUSY;
nvmm_fini();
return 0;
