[PATCH 2/2] powerpc/spufs: stop using access_ok

[Jeremy Kerr]

Hi Christophe,

> > Just use the proper non __-prefixed get/put_user variants where
> > that is not done yet.
> 
> But it means you are doing the access_ok() check everytime, which is 
> what is to be avoided by doing the access_ok() once then using the 
> __-prefixed variant.

5 out of 8 of these are just a access_ok(); simple_read_from_buffer().

For the cases where it's multiple __put/get_user()s, the max will be 5.
(for the mbox access). Is that worth optimising the access_ok() checks?

Cheers,


Jeremy