[RFC PATCH 0/2] zram: objects charge to mem_cgroup

[Zhongkun He]

This is a new solution to charge ZRAM objects,more simple than
previous one[1],The compressed RAM is currently charged to
kernel,not to any memory cgroup.

As we know, zram can be used in two ways, direct and
indirect, this patchset can charge memory in both cases.
Direct zram usage by process within a cgroup will fail
to charge if there is no memory. Indirect zram usage by
process within a cgroup via swap in PF_MEMALLOC context,
will charge successfully.

[1]
https://lore.kernel.org/all/20230615034830.1361853-1-hezhongkun.hzk@xxxxxxxxxxxxx/

Zhongkun He (2):
  memcg: Add support for zram object charge
  zram: charge the compressed RAM to the page's memcgroup

 drivers/block/zram/zram_drv.c | 43 +++++++++++++++++++++++++++++++++++
 drivers/block/zram/zram_drv.h |  1 +
 include/linux/memcontrol.h    | 10 ++++++++
 mm/memcontrol.c               | 23 +++++++++++++++++++
 4 files changed, 77 insertions(+)

-- 
2.25.1