Re: [PATCH 4/4] add ksm kernel shared memory driver.

[Andrea Arcangeli]

On Wed, Apr 15, 2009 at 05:43:03PM -0700, Jeremy Fitzhardinge wrote:
> Shouldn't that be kmap_atomic's job anyway?  Otherwise it would be hard to 

No because those are full noops in no-highmem kernels. I commented in
other email why I think it's safe thanks to the wrprotect + smp tlb
flush of the userland PTE.
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