Re: [PATCH RFC v0 10/49] pnfsd: use sbid hash table to map super_blocks to devid major identifiers

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On 2013-10-13 14:08, Christoph Hellwig wrote:
> On Sun, Oct 13, 2013 at 09:11:40AM +0300, Benny Halevy wrote:
>> On 2013-10-11 22:56, Christoph Hellwig wrote:
>>> On Thu, Sep 26, 2013 at 02:40:31PM -0400, Benny Halevy wrote:
>>>> From: Benny Halevy <bhalevy@xxxxxxxxxxx>
>>>
>>> This is entirely unessecary.  Just make sure all layouts set the sbid
>>> field in getdevicelist to the s_dev value of the filesystem and you
>>> can just use user_get_super.
>>
>> That's true for filesystmes that have a meaningful s_dev, unlike exofs,
>> but this functionality can be added later respectively.
> 
> Even exofs has a s_dev from the anon dev_T allocator.  Given that
> layouts aren't supposed to surived over reboots of the server I don't
> see a problem with it.

As far as I can see, exofs doesn't actually doing that.
Currently exofs_fill_super sets s_dev = 0;
Boaz, did I miss anything?

Benny

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