18 Dec
2021
18 Dec
'21
3:38 a.m.
On Fri, Dec 17, 2021 at 7:30 PM Nadav Amit namit@vmware.com wrote:
In such a case, I do think it makes sense to fail uffd-wp (when page_count() > 1), and in a prototype I am working on I do something like that.
Ack. If uddf-wp finds a page that is pinned, just skip it as not write-protectable.
Because some of the pinners might be writing to it, of course - just not through the page tables.
So that sounds like the right thing to do. I _think_ we discussed this the last time this came up. I have some dim memory of that. Jason, ring a bell?
Linus