[parisc-linux] Progress - Update

[Alan Cox]

> The macro xchg is used in quite a few places in what is nominally
> machine independent code.  Should we add __attribute__ ((aligned (16))
> to the definitions of all variables which exchange with 0?  Or, should
> we look for another solution?

xchg() is defined to work for a range of types and sizes. It is up to the 
arch code to implement it. That may mean you need to use a spinlock to implementsome cases.

Alan