Re: [PATCH 0/7] abstract pagetable locking and pte updates

William Lee Irwin III
2004-10-29T07:46:07Z

On Fri, Oct 29, 2004 at 05:20:13PM +1000, Nick Piggin wrote:
> Known issues: Hugepages, nonlinear pages haven't been looked at
> and are quite surely broken. TLB flushing (gather/finish) runs
> without the page table lock, which will break at least SPARC64.
> Additional atomic ops in copy_page_range slow down lmbench fork
> by 7%.

This raises the rather serious question of what you actually did
besides rearranging Lameter's code. It had all the same problems;
resolving them is a prerequisite to going anywhere with all this.

-- wli