Re: [PATCH] aoe: end barrier bios with EOPNOTSUPP

Ed Cashin
2009-09-10T15:17:56Z

On Thu Sep 10 03:48:22 EDT 2009, jens.axboe@oracle.com wrote:
> On Wed, Sep 09 2009, Ed Cashin wrote:
...
> > If I had a reproducable problem case that the barrier implementation
> > could fix, it would be very helpful.
>
> Depending on timing and the other end, it may not be easy to reproduce.
> But the problem is indeed real, so I think you should just add the
> proper barrier implementation instead of spending too much time trying
> to create a reproducable problem. By the time you get there, you could
> have fixed it many times over :-)

OK. I will start work on it. But if anybody can give me a torture
test that works on aoe devices, I'll be grateful.

I think the EOPNOTSUPP patch is good for the for-next aoe quilt tree,
while the new barrier support will be good for 2.6.32.

--
Ed