Module Name: src
Committed By: riastradh
Date: Fri Feb 24 11:03:13 UTC 2023
Modified Files:
src/sys/uvm: uvm_aobj.c
Log Message:
uvm: Eliminate __HAVE_ATOMIC_AS_MEMBAR conditionals.
Discussed on tech-kern:
https://mail-index.netbsd.org/tech-kern/2023/02/23/msg028729.html
To generate a diff of this commit:
cvs rdiff -u -r1.156 -r1.157 src/sys/uvm/uvm_aobj.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/uvm/uvm_aobj.c
diff -u src/sys/uvm/uvm_aobj.c:1.156 src/sys/uvm/uvm_aobj.c:1.157
--- src/sys/uvm/uvm_aobj.c:1.156 Tue May 31 08:43:16 2022
+++ src/sys/uvm/uvm_aobj.c Fri Feb 24 11:03:13 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: uvm_aobj.c,v 1.156 2022/05/31 08:43:16 andvar Exp $ */
+/* $NetBSD: uvm_aobj.c,v 1.157 2023/02/24 11:03:13 riastradh Exp $ */
/*
* Copyright (c) 1998 Chuck Silvers, Charles D. Cranor and
@@ -38,7 +38,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_aobj.c,v 1.156 2022/05/31 08:43:16 andvar Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_aobj.c,v 1.157 2023/02/24 11:03:13 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_uvmhist.h"
@@ -604,16 +604,12 @@ uao_detach(struct uvm_object *uobj)
KASSERT(uobj->uo_refs > 0);
UVMHIST_LOG(maphist," (uobj=%#jx) ref=%jd",
(uintptr_t)uobj, uobj->uo_refs, 0, 0);
-#ifndef __HAVE_ATOMIC_AS_MEMBAR
membar_release();
-#endif
if (atomic_dec_uint_nv(&uobj->uo_refs) > 0) {
UVMHIST_LOG(maphist, "<- done (rc>0)", 0,0,0,0);
return;
}
-#ifndef __HAVE_ATOMIC_AS_MEMBAR
membar_acquire();
-#endif
/*
* Remove the aobj from the global list.
