Date: Tue, 4 Aug 2015 03:53:00 +0800 From: Julian Elischer <julian@freebsd.org> To: Rick Macklem <rmacklem@uoguelph.ca>, lev@FreeBSD.org Cc: fs@freebsd.org Subject: Re: Multiple entries in ZFS "sharenfs" property? Message-ID: <55BFC69C.4000700@freebsd.org> In-Reply-To: <598623926.8227323.1438605000273.JavaMail.zimbra@uoguelph.ca> References: <130767529.20150801150343@serebryakov.spb.ru> <55BDF5D2.3090306@digiware.nl> <1941826477.20150802210808@serebryakov.spb.ru> <55BE83FA.1060208@digiware.nl> <55BF5932.2090107@FreeBSD.org> <598623926.8227323.1438605000273.JavaMail.zimbra@uoguelph.ca>
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On 8/3/15 8:30 PM, Rick Macklem wrote:
> Lev wrote:
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>> On 02.08.2015 23:56, Willem Jan Withagen wrote:
>>
>>> Nope, that doesn't work, as far as I can tell. You'd have to revert
>>> to editting /etc/exports.
>> Yep, I know.
>>
> Btw, even if the "hack" Julian Elischer requested was in the system,
> you would still have to export all the volumes, so this discussion
> doesn't really change.
> The only difference would be that the clients could use an NFSv3 mount
> and not an NFSv4 one.
I don't believe we use a separate export entry for each sub-fs
but I'd have to go look again.
> Just wanted to make this clear, rick
>
>>> Or hack on 'zfs set sharenfs' to generate multiple lines, in some
>>> sort of format. Like making ';' a line separator, and then prefix
>>> each part with the volume we are modifying.
>>>
>>> Place to give it a go are in:
>>> cddl/compat/opensolaris/misc/fsshare.c:213 if (share) {
>>> fprintf(newfd, "%s\t%s\n", mountpoint, translate_opts(shareopts));
>>> } And there split the shareopts on the split char (eg. ';') in
>>> several shareopts and then loop over them. Disadvantage is that the
>>> max length op the options is: MAXPATHLEN. So you can easily run out
>>> of space if you have many exports to do.
>> Here is PR with patch about this, from 2012 :(
>>
>> - --
>> // Lev Serebryakov
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