On Wed 17-04-19 16:41:42, Michal Koutny wrote: > On Wed, Apr 17, 2019 at 03:41:52PM +0200, Michal Hocko <mhocko@xxxxxxxxxx> wrote: > > Don't we need to use the lock in prctl_set_mm as well then? > > Correct. The patch alone just moves the race from > get_cmdline/prctl_set_mm_map to get_cmdline/prctl_set_mm. > > arg_lock could be used in prctl_set_mm but the better idea (IMO) is > complete removal of that code in favor of prctl_set_mm_map [1]. Ohh, I have missed that patch. As long as both are merged together then no objections from me and you can add Acked-by: Michal Hocko <mhocko@xxxxxxxx> > Michal > > [1] https://lore.kernel.org/lkml/20180405182651.GM15783@xxxxxxxxxx/ -- Michal Hocko SUSE Labs
