On Wed, 31 Oct 2007, Nick Piggin wrote:
>
> No that would be great. Fingers crossed it won't cause any problems.
I actually doubt it will cause problems.
We made much bigger changes to ptrace support when we disallowed writing
to read-only shared memory areas (we used to do the magic per-page COW
thing).
But if people have test-cases for ptrace and/or other magical users of
access_vm_pages() (things like core-dumping comes to mind - although I
think we don't dump pure file mappings at all, do we?) it would certainly
be good to run any such tests on the current -git tree...
Linus
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