ARM: big performance waste in memcpy_{from,to}io

[Bill Gatliff]

Russell King - ARM Linux wrote:
> The problem is whether optimising it will end up breaking existing users.
>   

I say we throw in the optimized version and enable it by default, along
with a Kconfig to defeat it upon user request at build time (or maybe a
module parameter).  And then see who complains.


b.g.

-- 
Bill Gatliff
bgat at billgatliff.com