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Don't permanently lose the async bit on an failed unmount

This commit is contained in:
sommerfeld 1999-07-04 06:16:29 +00:00
parent 1f8a1d54df
commit c7e5c39191
1 changed files with 4 additions and 1 deletions
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5
sys/kern/vfs_syscalls.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_syscalls.c,v 1.139 1999/07/01 18:58:16 wrstuden Exp $ */
/* $NetBSD: vfs_syscalls.c,v 1.140 1999/07/04 06:16:29 sommerfeld Exp $ */
/*
* Copyright (c) 1989, 1993
@ -457,6 +457,7 @@ dounmount(mp, flags, p)
{
struct vnode *coveredvp;
int error;
int async;
simple_lock(&mountlist_slock);
mp->mnt_flag |= MNT_UNMOUNT;
@ -464,6 +465,7 @@ dounmount(mp, flags, p)
lockmgr(&mp->mnt_lock, LK_DRAIN | LK_INTERLOCK, &mountlist_slock);
if (mp->mnt_flag & MNT_EXPUBLIC)
vfs_setpublicfs(NULL, NULL, NULL);
async = mp->mnt_flag & ASYNC;
mp->mnt_flag &=~ MNT_ASYNC;
cache_purgevfs(mp); /* remove cache entries for this file sys */
if (((mp->mnt_flag & MNT_RDONLY) ||
@ -473,6 +475,7 @@ dounmount(mp, flags, p)
simple_lock(&mountlist_slock);
if (error) {
mp->mnt_flag &= ~MNT_UNMOUNT;
mp->mnt_flag |= async;
lockmgr(&mp->mnt_lock, LK_RELEASE | LK_INTERLOCK | LK_REENABLE,
&mountlist_slock);
if (mp->mnt_flag & MNT_MWAIT)