Hi, we've come a looong way when it comes to the basic cgroups model, and the recent changes there open up a lot of opportunity to make drastic simplifications to memory cgroups as well. The decoupling of css from the user-visible cgroup, word-sized per-cpu css reference counters, and css iterators that include offlined groups means we can take per-charge css references, continue to reclaim from offlined groups, and so get rid of the error-prone charge reparenting. Combined with the higher-order reclaim fixes, lockless page counters, and memcg iterator simplification I sent on Friday, the memory cgroup core code is finally no longer the biggest file in mm/. Yay! These patches are based on mmotm + the above-mentioned changes + Tj's percpu-refcount conversion to atomic_long_t. Thanks! include/linux/cgroup.h | 26 +++ include/linux/percpu-refcount.h | 43 ++++- mm/memcontrol.c | 337 ++------------------------------------ 3 files changed, 75 insertions(+), 331 deletions(-) -- 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>