On Wed 15-05-13 16:35:08, Konstantin Khlebnikov wrote: > Sha Zhengju wrote: > >Hi, > > > >This is my second attempt to make memcg page stat lock simpler, the > >first version: http://www.spinics.net/lists/linux-mm/msg50037.html. > > > >In this version I investigate the potential race conditions among > >page stat, move_account, charge, uncharge and try to prove it race > >safe of my proposing lock scheme. The first patch is the basis of > >the patchset, so if I've made some stupid mistake please do not > >hesitate to point it out. > > I have a provocational question. Who needs these numbers? I mean > per-cgroup nr_mapped and so on. Well, I guess it makes some sense to know how much page cache and anon memory is charged to the group. I am using that to monitor the per-group memory usage. I can imagine a even better coverage - something /proc/meminfo like. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>