unionfs 5.4

[Sergey Matveychuk]

Jeff Roberson wrote:
>>just ffs: 1:47 min
>>nullfs:   1:43 min (oops!:)
>>nullfs in jail: 12:12 min
>>
>>Almost ten times degradation.
> 
> 
> Can you try this again on current?  I just committed some changes to
> nullfs which vastly simplify the locking.  I don't see anything inherent
> in the code that should cause such a slowdown.

The problem has gone. Thanks Jeff!
Don't forget MFC it some time :)

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Sem.