From: Nhat Pham <nphamcs@gmail.com>
To: akpm@linux-foundation.org
Cc: riel@surriel.com, hannes@cmpxchg.org, mhocko@kernel.org,
roman.gushchin@linux.dev, shakeelb@google.com,
muchun.song@linux.dev, tj@kernel.org, lizefan.x@bytedance.com,
shuah@kernel.org, mike.kravetz@oracle.com, yosryahmed@google.com,
linux-mm@kvack.org, kernel-team@meta.com,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org
Subject: [PATCH 0/2] hugetlb memcg accounting
Date: Tue, 26 Sep 2023 12:49:47 -0700 [thread overview]
Message-ID: <20230926194949.2637078-1-nphamcs@gmail.com> (raw)
Currently, hugetlb memory usage is not acounted for in the memory
controller, which could lead to memory overprotection for cgroups with
hugetlb-backed memory. This has been observed in our production system.
This patch series rectifies this issue by charging the memcg when the
hugetlb folio is allocated, and uncharging when the folio is freed. In
addition, a new selftest is added to demonstrate and verify this new
behavior.
Nhat Pham (2):
hugetlb: memcg: account hugetlb-backed memory in memory controller
selftests: add a selftest to verify hugetlb usage in memcg
MAINTAINERS | 2 +
fs/hugetlbfs/inode.c | 2 +-
include/linux/hugetlb.h | 6 +-
include/linux/memcontrol.h | 8 +
mm/hugetlb.c | 23 +-
mm/memcontrol.c | 40 ++++
tools/testing/selftests/cgroup/.gitignore | 1 +
tools/testing/selftests/cgroup/Makefile | 2 +
.../selftests/cgroup/test_hugetlb_memcg.c | 222 ++++++++++++++++++
9 files changed, 297 insertions(+), 9 deletions(-)
create mode 100644 tools/testing/selftests/cgroup/test_hugetlb_memcg.c
--
2.34.1
next reply other threads:[~2023-09-26 19:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 19:49 Nhat Pham [this message]
2023-09-26 19:49 ` [PATCH 1/2] hugetlb: memcg: account hugetlb-backed memory in memory controller Nhat Pham
2023-09-26 20:50 ` [PATCH 0/2] hugetlb memcg accounting Frank van der Linden
2023-09-26 22:14 ` Johannes Weiner
2023-09-27 12:50 ` Michal Hocko
2023-09-27 16:44 ` Johannes Weiner
2023-09-27 17:22 ` Nhat Pham
2023-09-26 23:31 ` Nhat Pham
2023-09-27 11:21 ` Michal Hocko
2023-09-27 18:47 ` Johannes Weiner
2023-09-27 21:37 ` Roman Gushchin
2023-09-28 12:52 ` Johannes Weiner
2023-10-01 23:27 ` Mike Kravetz
2023-10-02 14:42 ` Johannes Weiner
2023-10-02 14:58 ` Michal Hocko
2023-10-02 15:36 ` Johannes Weiner
2023-09-27 23:33 ` Nhat Pham
2023-09-28 1:00 ` Nhat Pham
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