On Wed, Mar 20, 2019 at 10:06:39AM +0800, Peter Xu wrote:
> In change_pte_range() we do nothing for uffd if the PTE is a swap
> entry. That can lead to data mismatch if the page that we are going
> to write protect is swapped out when sending the UFFDIO_WRITEPROTECT.
> This patch applies/removes t
In change_pte_range() we do nothing for uffd if the PTE is a swap
entry. That can lead to data mismatch if the page that we are going
to write protect is swapped out when sending the UFFDIO_WRITEPROTECT.
This patch applies/removes the uffd-wp bit even for the swap entries.
Signed-off-by: Peter Xu
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