On Tue, May 24, 2016 at 12:22:07PM -0400, Tejun Heo wrote:
> A delta but that particular libata usage is probably not needed now.
> The path was used while libata was gradually adding error handlers to
> the low level drivers.  I don't think we don't have any left w/o one
> at this point.  I'll verify and get rid of that usage.

OK, that would be great; I was sorta lost in there, but it looked like
if you need the spin_unlock_wait() you also need the extra barrier
thing.

If you can remove it, better still.

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