On Tue 21-05-19 08:36:28, Oleksandr Natalenko wrote: [...] > Regarding restricting the hints, I'm definitely interested in having > remote MADV_MERGEABLE/MADV_UNMERGEABLE. But, OTOH, doing it via remote > madvise() introduces another issue with traversing remote VMAs reliably. > IIUC, one can do this via userspace by parsing [s]maps file only, which > is not very consistent, and once some range is parsed, and then it is > immediately gone, a wrong hint will be sent. > > Isn't this a problem we should worry about? See http://lkml.kernel.org/r/20190520091829.GY6836@xxxxxxxxxxxxxx -- Michal Hocko SUSE Labs
