On Tue, Aug 08, 2017 at 04:35:38PM +0200, Laurent Dufour wrote:

The VMA sequence count has been introduced to allow fast detection of
VMA modification when running a page fault handler without holding
the mmap_sem.

This patch provides protection agains the VMA modification done in :
	- madvise()
	- mremap()
	- mpol_rebind_policy()
	- vma_replace_policy()
	- change_prot_numa()
	- mlock(), munlock()
	- mprotect()
	- mmap_region()
	- collapse_huge_page()

I don't thinks it's anywhere near complete list of places where we touch
vm_flags. What is your plan for the rest?
-- 
 Kirill A. Shutemov