On Sun, 27 Jan 2008 18:52:38 +0200
Pekka Paalanen <pq@iki.fi> wrote:

quoted text
> From: Pekka Paalanen <pq@iki.fi>
> 
> Provides kernel modules a way to register custom page fault handlers.
> On every page fault, except those handled in vmalloc_fault(), this
> will call a list of registered functions. The functions may handle
> the fault and force do_page_fault() to return immediately.
> 
> This functionality is similar to the now removed page fault notifiers.
> Custom page fault handlers are used by debugging and reverse
> engineering tools. Mmio-trace is one such tool and a patch to add it
> into the tree will follow.
> 
> The custom page fault handlers are called from the exact same points
> in do_page_fault() as the page fault notifiers were.

to be honest I don't like this approach.
I fully would like to see mmio tracing in the kernel, but please 
make the hook explicit and direct (eg call the mmio tracing function,
not some list) instead...


-- 
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/