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SubjectRe: [RFC v4 0/3] mm: zap pages with read mmap_sem in munmap for large mapping
On Wed 11-07-18 10:04:48, Yang Shi wrote:
[...]
> One approach is to save all the vmas on a separate list, then zap_page_range
> does unmap with this list.

Just detached unmapped vma chain from mm. You can keep the existing
vm_next chain and reuse it.

--
Michal Hocko
SUSE Labs
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