From: SeongJae Park <sj@kernel.org>
Cc: SeongJae Park <sj@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Lorenzo Stoakes <ljs@kernel.org>, Michal Hocko <mhocko@suse.com>,
Mike Rapoport <rppt@kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@kernel.org>,
damon@lists.linux.dev, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [RFC PATCH v2 0/2] mm/damon/stat: add kdamond_pid parameter
Date: Sat, 25 Apr 2026 13:33:05 -0700 [thread overview]
Message-ID: <20260425203309.108879-1-sj@kernel.org> (raw)
DAMON_STAT doesn't provide the pid of its kdamond, unlike DAMON_RECLAIM
and DAMON_LRU_SORT. This makes user-space management of DAMON_STAT
unnecessarily complicated. Provide the information via a new parameter,
namely kdamond_pid, and document it.
Changes from RFC v1.2
- rfc v1.2: https://lore.kernel.org/20260416002149.87090-1-sj@kernel.org
- Detect and use fresh kdamond pid.
Changes from RFC v1.1
- rfc v1.1: https://lore.kernel.org/20260414235912.98174-1-sj@kernel.org
- Close the parentheses of error handling block.
Changes from RFC
- rfc: https://lore.kernel.org/20260414053742.90296-1-sj@kernel.org
- Fix damon_kdamond_pid() failure handling.
SeongJae Park (2):
mm/damon/stat: add a parameter for reading kdamond pid
Docs/admin-guide/mm/damon/stat: document kdamond_pid parameter
Documentation/admin-guide/mm/damon/stat.rst | 7 ++++
mm/damon/stat.c | 38 +++++++++++++++++++++
2 files changed, 45 insertions(+)
base-commit: 4eb752fe1ea250a5339f1e70398c5fa3a18afb87
--
2.47.3
next reply other threads:[~2026-04-25 20:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-25 20:33 SeongJae Park [this message]
2026-04-25 20:33 ` [RFC PATCH v2 1/2] mm/damon/stat: add a parameter for reading kdamond pid SeongJae Park
2026-04-25 20:33 ` [RFC PATCH v2 2/2] Docs/admin-guide/mm/damon/stat: document kdamond_pid parameter SeongJae Park
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