Re: [patch 47/59] x86: optimize page faults like all other achitectures and kill notifier cruft

[Andi Kleen <ak@suse.de>]

On Saturday 11 August 2007 00:00:12 akpm@linux-foundation.org wrote:
> From: Christoph Hellwig <hch@lst.de>
> 
> x86(-64) are the last architectures still using the page fault notifier
> cruft for the kprobes page fault hook.  This patch converts them to the
> proper direct calls, and removes the now unused pagefault notifier bits
> aswell as the cruft in kprobes.c that was related to this mess.
> 
> I know Andi didn't really like this, but all other architecture maintainers
> agreed the direct calls are much better and besides the obvious cruft
> removal a common way of dealing with kprobes across architectures is
> important aswell.

This means the debuggers just have to readd it. Not merged.

If you worry about cycles notifiers could be probably optimized a bit
for the nothing registered case.

-Andi