[PATCH] powerpc: book3e_64: fix the align size for paca_struct

[Kevin Hao]

On Sun, Mar 08, 2015 at 08:13:26PM +1100, Benjamin Herrenschmidt wrote:
> On Sat, 2015-03-07 at 19:14 +0800, Kevin Hao wrote:
> > All the cache line size of the current book3e 64bit SoCs are 64 bytes.
> > So we should use this size to align the member of paca_struct.
> > With this change we save 192 bytes. Also change it to __aligned(size)
> > since it is preferred over __attribute__((aligned(size))).
> 
> Why should we favor the book3e CPUs over the book3s ones ?

Why do you think so? This only change the align size of the paca_struct's
members which are private to book3e CPUs, and should not have any effect
to book3s ones. Did I miss something?

Thanks,
Kevin
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