Re: [PATCH v2 2/2] x86/mm: implement free pmd/pte page interfaces

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On Fri, Apr 27, 2018 at 02:31:51PM +0000, Kani, Toshi wrote:
> So, we can add the step 2 on top of this patch.
>  1. Clear pud/pmd entry.
>  2. System wide TLB flush <-- TO BE ADDED BY NEW PATCH
>  3. Free its underlining pmd/pte page.

This still lacks the page-table synchronization and will thus not fix
the BUG_ON being triggered.

> We do not need to revert this patch.  We can make the above change I
> mentioned.

Please note that we are not in the merge window anymore and that any fix
needs to be simple and obviously correct.


Thanks,

	Joerg



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