On Tue, Sep 04, 2018 at 03:55:10PM +0800, Peter Xu wrote: > When splitting a huge page, we should set all small pages as dirty if > the original huge page has the dirty bit set before. Otherwise we'll > lose the original dirty bit. We don't lose it. It got transfered to struct page flag: if (pmd_dirty(old_pmd)) SetPageDirty(page); -- Kirill A. Shutemov
