Re: fs: dax: do not build on ARC or SH

[Christoph Hellwig]

On Mon, Feb 23, 2015 at 01:56:34PM -0800, Guenter Roeck wrote:
> Guess there a philosophical difference in opinion if the architecture code
> should (have to) provide copy_user_page() or not outside the architecture
> code itself. After all, fs/dax.c _is_ the only user of this function outside
> the architecture code.

Given that copy_user_page just is an optimized version of copy_page
all these architectures should just grab the trivial macro defintion
from the asm-generic version so that we could avoid this discussion.
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