From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 47B3C3E8C59; Tue, 14 Apr 2026 23:59:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776211163; cv=none; b=tn/Fq7VsZSTVZ+GeSX9p17lrhhiQKbM5ztNwYgIQdkYCziziMnWLS3I61Hq9Kq8io6B7+OmYx2qyDsYcdEiHVQBsmMMd29I2C7DNLiv+AU9ghnHuhxJ99/yMIbdSppaSpL1X/cTQv3t1k/At7xH42IcIMZNoqzeiBjVmAxGFUA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776211163; c=relaxed/simple; bh=aT2joNhwB38aP+3ueokcrxLbjs3TuKPM6sz/BJoGywc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hNAdWpfXnxV1oJx8siz4hnvA6wnRE4jbFqPyPtE/zg1ZP56fi+9i5ItyGQCtq57Wr+FtJrfpL+AqgRaWLJVVyokQE25+tR+YX6eqIjLTZrm2VWTlxRlpQxIY51Daxh42Azv5jS2+5CZXtDNSquZLDAbHFYxVhY5TiNt7dVnueiE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=t8NiXV9W; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="t8NiXV9W" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7BD20C19425; Tue, 14 Apr 2026 23:59:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776211163; bh=aT2joNhwB38aP+3ueokcrxLbjs3TuKPM6sz/BJoGywc=; h=From:To:Cc:Subject:Date:From; b=t8NiXV9W8dHj+xU2joGruNKXvO0/2H8x8+UD6hI61Rbyf0IfGwER4zLs6cs6VuciL u/OVlHWGPZcLEPhiGrOZslOrHnnfsCS58mAVDqaZ6XTUkQqNKtMfpKRgIi/mHmpPbN 6tw5vX/d0hBBO20SxZ2MXvRjxCZHrmeN0IVcm+qtxc9gB9Yn67wMUUJXGORwFhbkQX BSuJC6O7F8vOxWVPHzcFMV9wf0K/OnvFOBnIDjQjLKWRAkTytxGmm7sDpA6vt2SG9c Va57uA3o2dIqPBE2qxgjuxNsIONwJOiJZ8o1DSaLMp9N42r64EGc/wP76M7Dao71SK x1qOOP52xgZhg== From: SeongJae Park To: Cc: SeongJae Park , "Liam R. Howlett" , Andrew Morton , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.1 0/2] mm/damon/stat: add kdamond_pid parameter Date: Tue, 14 Apr 2026 16:59:09 -0700 Message-ID: <20260414235912.98174-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 - 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 | 17 +++++++++++++++++ 2 files changed, 24 insertions(+) base-commit: 02784c37a710fa3c8c3e7be4f27a5cfa3356dc00 -- 2.47.3