[PATCH RFC v2 0/4] mm: some enhancements to the page fault mechanism

(sorry I got the cc list messed up; am sending another one with no change but only to fix the cc list) This is an RFC series as cleanup and enhancements to current page fault logic. The whole idea comes from the discussion between Andrea and Linus on the bug reported by syzbot here:

[PATCH RFC v2 0/4] mm: some enhancements to the page fault mechanism

(sorry I got the cc list messed up; am sending another one with no change but only to fix the cc list) This is an RFC series as cleanup and enhancements to current page fault logic. The whole idea comes from the discussion between Andrea and Linus on the bug reported by syzbot here: