On Fri, Jan 08, 2021 at 11:34:08AM -0800, Linus Torvalds wrote:
I still dislike how we basically randomly modify the information in
that 'vmf' thing.
I wounder if it would be acceptable to pass down to faultaround a copy
of vmf, so it mess with it without risking to corrupt the original one?
We would need to transfer back prealloc_pte, but the rest can be safely
discarded, I believe.
But it's somewhat wasteful of stack. sizeof(vmf) == 96 on x86-64.
--
Kirill A. Shutemov
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