On Mon, Oct 20, 2014 at 08:53:06PM +0200, Michal Hocko wrote: > On Mon 20-10-14 19:11:29, Vladimir Davydov wrote: > > The activate_kmem_mutex is used to serialize memcg.kmem.limit updates, > > but we already serialize them with memcg_limit_mutex so let's remove the > > former. > > > > Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> > > Is this the case since bd67314586a3 (memcg, slab: simplify > synchronization scheme)? No, it's since Johannes' lockless page counters patch where we have the memcg_limit_mutex introduced to synchronize concurrent limit updates (mm commit dc1815408849 "mm: memcontrol: lockless page counters"). Thanks, Vladimir > Anyway Looks good to me. > Acked-by: Michal Hocko <mhocko@xxxxxxx> -- 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>