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From: Kirk McKusick <mckusick@mckusick.com>
To: Rick Macklem <rmacklem@uoguelph.ca>
Subject: Re: make mountd's -S option the default
cc: FreeBSD Filesystems <freebsd-fs@freebsd.org>,
 Julian Elischer <jelischer@panzura.com>
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Date: Sun, 13 Mar 2016 21:42:10 -0700
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> Date: Sun, 13 Mar 2016 22:20:47 -0400 (EDT)
> From: Rick Macklem <rmacklem@uoguelph.ca>
> To: FreeBSD Filesystems <freebsd-fs@freebsd.org>
> Subject: make mountd's -S option the default
> 
> Julian Elischer has volunteered to commit the patches that
> make the -S option the default for mountd.
> 
> Without this option, any reload of /etc/exports (which happens
> whenever any file system is mounted on the server) can result in
> error replies to NFS clients, due to the file system being temporarily
> not exported. The only downside I can think of to using this option
> is a delay observed by NFS clients when large /etc/exports files
> are reloaded. (Since without the delay they can get error replies,
> the delay seems preferable.
> 
> There are several PR#s related to these error replies:
> 9619, 131342, 206855 (and probably some others)
> 
> If anyone has a problem with this change in default behaviour,
> please email.
> 
> rick

I believe that putting in -S by default is long overdue.

	Kirk McKusick