> This is v2 of this patchset.We've sent fdmap(2) back in the day:https://marc.info/?l=linux-kernel&m=150628359803324&w=4It can do everything close_range() does and potentially more.If people ask for it I can rebase it and resend.P.S.: you are 2 steps behind :-)https://lwn.net/Articles/490224/