This patch series adds a memory.reclaim proactive reclaim interface.
The rationale behind the interface and how it works are in the first
patch.
---
Changes in V3:
- Fix cg_write() (in patch 2) to properly return -1 if open() fails
and not fail if len == errno.
- Remove debug printf() in patch 3.
Changes in V2:
- Add the interface to root as well.
- Added a selftest.
- Documented the interface as a nested-keyed interface, which makes
adding optional arguments in the future easier (see doc updates in the
first patch).
- Modified the commit message to reflect changes and add a timeout
argument as a suggested possible extension
- Return -EAGAIN if the kernel fails to reclaim the full requested
amount.
---
Shakeel Butt (1):
memcg: introduce per-memcg reclaim interface
Yosry Ahmed (3):
selftests: cgroup: return the errno of write() in cg_write() on
failure
selftests: cgroup: fix alloc_anon_noexit() instantly freeing memory
selftests: cgroup: add a selftest for memory.reclaim
Documentation/admin-guide/cgroup-v2.rst | 21 +++++
mm/memcontrol.c | 37 ++++++++
tools/testing/selftests/cgroup/cgroup_util.c | 32 ++++---
.../selftests/cgroup/test_memcontrol.c | 93 ++++++++++++++++++-
4 files changed, 166 insertions(+), 17 deletions(-)
--
2.35.1.1178.g4f1659d476-goog
