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Return immediately from uvm_swap_shutdown() if there are 

no (more) swap devices configured.
This commit is contained in:
hannken 2021-08-23 13:08:18 +00:00
parent d0949d3728
commit 9d23eb8808
1 changed files with 3 additions and 3 deletions
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6
sys/uvm/uvm_swap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: uvm_swap.c,v 1.205 2021/06/03 20:18:06 riastradh Exp $ */
/* $NetBSD: uvm_swap.c,v 1.206 2021/08/23 13:08:18 hannken Exp $ */
/*
* Copyright (c) 1995, 1996, 1997, 2009 Matthew R. Green
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uvm_swap.c,v 1.205 2021/06/03 20:18:06 riastradh Exp $");
__KERNEL_RCSID(0, "$NetBSD: uvm_swap.c,v 1.206 2021/08/23 13:08:18 hannken Exp $");
#include "opt_uvmhist.h"
#include "opt_compat_netbsd.h"
@ -1149,7 +1149,7 @@ uvm_swap_shutdown(struct lwp *l)
struct vnode *vp;
int error;
if (!uvm_swap_init_done)
if (!uvm_swap_init_done || uvmexp.nswapdev == 0)
return;
printf("turning off swap...");
rw_enter(&swap_syscall_lock, RW_WRITER);