From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>,
Brendan Higgins <brendanhiggins@google.com>,
damon@lists.linux.dev, linux-mm@kvack.org,
kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] mm/damon/sysfs: fix unexpected targets adding bug
Date: Sun, 22 Oct 2023 21:07:32 +0000 [thread overview]
Message-ID: <20231022210735.46409-1-sj@kernel.org> (raw)
The sysfs code for online targets updating can result in adding more than
expected monigoring targets to the context. It can result in unexpected amount
of memory consumption and monitoring overhead. This patchset fixes the issue
(patch 1), and add a kunit test for avoiding similar bug of future (patch 2).
SeongJae Park (2):
mm/damon/sysfs: remove requested targets when online-commit inputs
mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets()
mm/damon/Kconfig | 12 ++++++
mm/damon/sysfs-test.h | 86 +++++++++++++++++++++++++++++++++++++++++++
mm/damon/sysfs.c | 52 ++++++--------------------
3 files changed, 109 insertions(+), 41 deletions(-)
create mode 100644 mm/damon/sysfs-test.h
base-commit: 9a969da6ffb9609f5fa8d0b7fdc6859c37a10335
--
2.34.1
next reply other threads:[~2023-10-22 21:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-22 21:07 SeongJae Park [this message]
2023-10-22 21:07 ` [PATCH 1/2] mm/damon/sysfs: remove requested targets when online-commit inputs SeongJae Park
2023-10-28 21:09 ` SeongJae Park
2023-10-22 21:07 ` [PATCH 2/2] mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets() SeongJae Park
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