MPSAFE VFS -- List of upcoming actions

Attilio Rao attilio at freebsd.org
Mon Jul 2 14:35:59 UTC 2012


2012/7/2, Russell Cattelan <cattelan at thebarn.com>:
> On 7/2/12 1:12 AM, Christoph Hellwig wrote:
>> On Sun, Jul 01, 2012 at 03:52:05PM +0200, Attilio Rao wrote:
>>> anything by SoC involved people about NTFS and certainly I don't see a
>>> plan to get XFS locked.
>>
>> Stupid question, but what amount of locking does XFS in FreeBSD still
>> need?  I'm one of the maintainer of XFS on Linux, and while I know
>> FreeBSD imported a really old version compared to the current one the
>> codebases on IRIX and later Linux never relied on any global Giant-style
>> locking.  So if there is anything to fix it would be the in the small
>> bits of FreeBSD-specific code.
>>
> I would be curious as well. Since I'm one of the people that has done
> the port of XFS to FreeBSD I'm wondering what this whole MP initiative
> with regards to filesystems is about.

So if you think that XFS doesn't need to acquire Giant why it is not
yet marked MPSAFE?
Also, did you really ever actually tested write support? (Not sure if
it was added to you).

Attilio


-- 
Peace can only be achieved by understanding - A. Einstein


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