Re: [PATCH] x86/mm: synchronize pgd in vmemmap_free()

Hi Jerome, On 05/19/2017 11:01 AM, Jérôme Glisse wrote: When we free kernel virtual map we should synchronize p4d/pud for all the pgds to avoid any stall entry in non canonical pgd. "any stale entry in the non-canonical pgd", is what I think you meant to type there. Also, it would be nice to

[PATCH] x86/mm: synchronize pgd in vmemmap_free()

When we free kernel virtual map we should synchronize p4d/pud for all the pgds to avoid any stall entry in non canonical pgd. Signed-off-by: Jérôme Glisse Cc: Kirill A. Shutemov Cc: Andrew Morton Cc: Ingo Molnar Cc: Michal Hocko Cc: Mel Gorman --- arch/x86/mm/init_64.c | 17 ++--