Hi,
Suppose I have a vma belonging to a user process and in its address range a lot of pages are mapped.
What should I do if I want to set the data of all the page frames to zero, without unmapping any of them or mapping any new pages?
Can zap_page_range / zap_vma_ptes do that? It seems zap functions would unmap pages.
Thanks,
Cheng Quan
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