On Wed, May 29, 2019 at 02:20:49PM -0700, Song Liu wrote: > After all uprobes are removed from the huge page (with PTE pgtable), it > is possible to collapse the pmd and benefit from THP again. This patch > does the collapse.
I don't think it's right way to go. We should deferred it to khugepaged. We need to teach khugepaged to deal with PTE-mapped compound page. And uprobe should only kick khugepaged for a VMA. Maybe synchronously. -- Kirill A. Shutemov
