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
