Hello, On Wed, Jun 02, 2021 at 06:09:28PM -0700, Roman Gushchin wrote: > This patchset reworks memcg-based accounting of the percpu memory: > instead of using two types of chunks (memcg-aware and non-memcg-aware) > it treats all chunks as memcg-aware. An extra memory used for objcg > arrays will is compensated by a better chunks utilization, so the > total memory footprint should be the same or smaller. > > First two patches are preparational changes and cleanups on the memcg side. > The third one is percpu accounting rework. > > v2: > - make all chunks memcg-aware instead of on-demand objcg allocation, by Dennis > > v1: > https://lkml.org/lkml/2021/5/11/1343 > > > Roman Gushchin (3): > mm, memcg: mark cgroup_memory_nosocket, nokmem and noswap as > __ro_after_init > mm, memcg: introduce mem_cgroup_kmem_disabled() > percpu: rework memcg accounting > > include/linux/memcontrol.h | 5 ++ > mm/memcontrol.c | 11 ++- > mm/percpu-internal.h | 52 +-------------- > mm/percpu-km.c | 5 +- > mm/percpu-stats.c | 46 +++++-------- > mm/percpu-vm.c | 11 ++- > mm/percpu.c | 133 +++++++++++++++---------------------- > 7 files changed, 88 insertions(+), 175 deletions(-) > > -- > 2.31.1 > Thanks for this! It greatly simplifies the chunk maintenance. I've applied this to for-5.14. There is a trivial merge conflict though due to my for-5.14 being based on torvalds#v5.12-rc7, but that's fine. Thanks, Dennis
