From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 A4A973921DD; Tue, 15 Sep 2026 02:09:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789438183; cv=none; b=ubHovI53DtAn5JQ13sGq9JPqqxdH8j1TneFKJkQpc2HpHcXreuZ7vjH/av2mw04+BkakucBkTND83CXefSUb1lANQVqnp6Jh08s8Yi1d7AZ318chYX2GZSgmP+9O/zGf6ZvtdPGOegOd7a9GnteGZhgdmkJfSDMLxgxByewBGOE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789438183; c=relaxed/simple; bh=hGYrlp8BUYEplerJ3NeTyfTllMHPJtU0fdxbw3cZ6Do=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pz9Wf9ZAMQIWKmV8TRg35evyA8kirLT30E4Ba7J2HaLM/0vmfXj/4+EX0mfaiZt97eFZwpwDBhh7ig9D6xbOuiBxaUJFyFfM6ISHzwrk2fYAv/xc8wdDM++hZkE/O0Wn4zaQM3yFr9JnKqPYKO3oDwwJ3jj6+Z0wCyqLBSQMG78= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Hiyb8acw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Hiyb8acw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B5AD51F0089A; Tue, 15 Sep 2026 02:09:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789438179; bh=Gmq/rX+sVM9Hs+BxObGYka5NbSCER5H2QYTBCAxyvwk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Hiyb8acwXAgqxym9KzuWX0MDr2xlqwBXaRVpzjPy+RObadhlgphPAVk3CXx2xBKgS 4TocPLG1FHRPYCvsShf4QeSoF21GhvYnqDTW4HqRkOPL/2nKwZ9+krR6p2chCztSqK 92TUv82mRYZcUdsDm1c871fRyaUM2/PJ9xReSRwaoo8ZCM0usYTXmkuzI8PT5FV47y 4qJP3WMB+gkeNlQxlO98c/NgHWKFtIGSwqKcuoPQqgUjiBiiWeL13QWsU4Q/J7Cgnp iNLf5R57XyJwdt8aocOMHJ1RrlWij0nDLcIqXfGj9Apu98dAw/4rpsz7QGu6BHUTHo JbGkI8CgQ+eyQ== From: SJ Park To: Cc: SJ Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 5/8] mm/damon/sysfs: support hugepage_size probe filter Date: Mon, 14 Sep 2026 19:09:24 -0700 Message-ID: <20260915020929.102953-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260915020929.102953-1-sj@kernel.org> References: <20260915020929.102953-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Extend DAMON sysfs interface to support hugepage_size probe filter. Allows hugepage_size user string input to the filter type file. Pass the size range argument that users set via min/max files under the probe filter directory to the DAMON core. Signed-off-by: SJ Park --- mm/damon/sysfs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 8e8d89b8ed981..43519afb9eb7f 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1007,6 +1007,10 @@ damon_sysfs_filter_type_names[] = { .type = DAMON_FILTER_TYPE_PGIDLE_SET, .name = "pgidle_set", }, + { + .type = DAMON_FILTER_TYPE_HUGEPAGE_SIZE, + .name = "hugepage_size", + }, }; static ssize_t type_show(struct kobject *kobj, @@ -2273,6 +2277,9 @@ static int damon_sysfs_set_filters(struct damon_probe *probe, damon_destroy_filter(filter); return err; } + } else if (filter->type == DAMON_FILTER_TYPE_HUGEPAGE_SIZE) { + filter->range_min = sys_filter->range_min; + filter->range_max = sys_filter->range_max; } damon_add_filter(probe, filter); } -- 2.47.3