[PATCH v3 0/3] samples: introduce cgroup events listeners

Dmitry Rokosov
2023-11-23T07:20:01Z

To begin with, this patch series relocates the cgroup example code to
the samples/cgroup directory, which is the appropriate location for such
code snippets.

Furthermore, a new memcg events listener is introduced. This
listener is a simple yet effective tool for monitoring memory events and
managing counter changes during runtime.

Additionally, as per Andrew Morton's suggestion, a helpful reminder
comment is included in the memcontrol implementation. This comment
serves to ensure that the samples code is updated whenever new events
are added.

Changes v3 since v2 at [2]:
- rename cgroup_v2_event_listener to memcg_event_listener per
Andrew's suggestion

Changes v2 since v1 at [1]:
- create new samples subdir - cgroup
- move cgroup_event_listener for cgroup v1 to samples/cgroup
- add a reminder comment to memcontrol implementation

Links:
[1] - https://lore.kernel.org/all/20231013184107.28734-1-ddrokosov@salutedevices.com/
[2] - https://lore.kernel.org/all/20231110082045.19407-1-ddrokosov@salutedevices.com/

Dmitry Rokosov (3):
samples: introduce new samples subdir for cgroup
samples/cgroup: introduce memcg memory.events listener
mm: memcg: add reminder comment for the memcg v2 events

MAINTAINERS | 1 +
mm/memcontrol.c | 4 +
samples/Kconfig | 6 +
samples/Makefile | 1 +
samples/cgroup/Makefile | 5 +
.../cgroup/cgroup_event_listener.c | 0
samples/cgroup/memcg_event_listener.c | 330 ++++++++++++++++++
tools/cgroup/Makefile | 11 -
8 files changed, 347 insertions(+), 11 deletions(-)
create mode 100644 samples/cgroup/Makefile
rename {tools => samples}/cgroup/cgroup_event_listener.c (100%)
create mode 100644 samples/cgroup/memcg_event_listener.c
delete mode 100644 tools/cgroup/Makefile

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2.36.0