Need to force sync(2) before umounting UFS1 filesystems?

[Garrett Cooper]

On Sat, Oct 1, 2011 at 2:37 PM, Kirk McKusick <mckusick at mckusick.com> wrote:
>> Date: Sat, 1 Oct 2011 12:44:04 -0700
>> Subject: Re: Need to force sync(2) before umounting UFS1 filesystems?
>> From: Garrett Cooper <yanegomi at gmail.com>
>> To: Attilio Rao <attilio at freebsd.org>
>> Cc: Kostik Belousov <kostikbel at gmail.com>,
>>         Kirk McKusick <mckusick at mckusick.com>, freebsd-fs at freebsd.org,
>>         Xin LI <delphij at freebsd.org>
>>
>> Ok. Now that I know this is the direction you guys want to go, I'll
>> start testing the change.
>
> Thanks for throwing some testing at this. Please test my latest
> proposed change (included below so you do not have to dig through
> earlier email) as I believe that it has the least likelyhood of
> problems and is what I am currently proposing to put in.

I apologize for not getting this done sooner. It passes a smoke test
with the following filesystems:

nfs
nullfs
smbfs
unionfs
ufs
zfs

I'll be running more extensive stress tests soon, but it looks like a
good step forward.

Thanks!
-Garrett