[PATCH 0/1] Fixup write permission of TLB on powerpc e500 core
benh at kernel.crashing.org
Fri Jul 15 19:05:23 EST 2011
On Fri, 2011-07-15 at 10:20 +0200, Peter Zijlstra wrote:
> But but but but, that get_user_pages(.write=1, .force=0) should result
> in a COW break, getting our own writable page.
> What is this e500 thing smoking that this doesn't work?
Right. That should have triggered the cow & flushed the TLB entry....
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