[RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2]

[David Howells]

Ilya Dryomov <idryomov at gmail.com> wrote:

> >  * This means there isn't a dead spot in the buffer, but the ring
> >  * size has to be a power of two and <= 2^31.

I'll go with that, thanks.

David