On Thu, Mar 01, 2018 at 01:15:23PM -0800, Matthew Wilcox wrote: > From: Matthew Wilcox <mawil...@microsoft.com> > > Define a new PageTable bit in the page_type and use it to mark pages in > use as page tables. This can be helpful when debugging crashdumps or > analysing memory fragmentation. Add a KPF flag to report these pages > to userspace and update page-types.c to interpret that flag.
I guess it's worth noting in the commit message that PGD and P4D page tables are not acoounted to NR_PAGETABLE and not marked with PageTable(). > > Signed-off-by: Matthew Wilcox <mawil...@microsoft.com> Acked-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com> -- Kirill A. Shutemov