I had a look at copy_one_pte().
I cannot see any ioproc_update_page() call, not even for the COW pages.
Is it intentional?
We can live with a COW page for a considerably long time.
How could the IO-PROC. know that a process-ID / user virt. addr. pair
refers to the same page?
The comment above ioproc_update_page() says that every time when a PTE
is created / modified...
Thanks,
Zoltan Menyhart
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