Re: [PATCH 1/1] network memory allocator.

David Miller
2006-08-14T20:15:17Z

> Now, PA-RISC CPUs have the ability to disable spaceid hashing, and it is
> entirely possible that the PA-RISC linux port does that, but I thought I
> would mention it as an example. I'm sure the "official" PA-RISC linux
> folks can expand on that much much better than I can.

Regardless, the "offset" it usually taken care of transparently
by the kernel in order to avoid cache aliasing issues.

It is definitely something we'll need to deal with for zero-copy
I/O using NTA. We'll have to make sure that the user mapping of
the page is of the same color as the mapping the kernel uses.