mquery call and page faults

[Craig Perras <cperras@watchguard.com>]

Hello -

I scanned the docs and code for a counterpart to the mprotect call: I
would like some way to query the vm_flags for a page (or set of pages).
It would be great if it was possible to check the page-flag values as
well (locked, dirty, etc), tho this is less important. 

Finally, is there an architecture-independent method for determining the
type of page fault? The only thing I've found was in the do_page_fault
call, but it is processor-dependent.

I would be happy to implement these features if they do not already
exist and if noone else is working on them. Any suggestions are welcome.

thanks!
--craig
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