Re: copy_from_user_page/copy_to_user_page fix

[Ralf Baechle <ralf@linux-mips.org>]

On Wed, Feb 09, 2005 at 06:49:47PM +0900, Atsushi Nemoto wrote:

> Yet another dcache aliasing problem.
> 
> Since access_process_vm() in kernel 2.6 does not call
> flush_cache_page(), it seems copy_to_user_page()/copy_from_user_page()
> should flush data cache to resolve aliasing.
> 
> Without this fix, gdb will not work correctly.  Could you apply?

I'm going to apply this because it's a correct fix; the temporary mapping
strategy as we've discussed for the dup_mmap problem would be preferable.

  Ralf