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 99109481657; Mon, 14 Sep 2026 14:44:59 +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=1789397103; cv=none; b=Akil0weUOX5jeATTpKl0xlirpEuBSRElVm8uZqxDaLcO3BYXd2y2Z9VGiX6kPpRmvHj7xzY5Ud8GyjMswg7uXlp/KLF2MzFhm0W5fg00oiOjQCkIl136mH41jieUg5qeJaU523wAfBVuXF+eB7XQqHA3pD6frzzFhKc6Eb2Sh9A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789397103; c=relaxed/simple; bh=hGYrlp8BUYEplerJ3NeTyfTllMHPJtU0fdxbw3cZ6Do=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oIFbptFWwJUwWfwqe24IPHFlMqaxMps1kbzkVCpUITqI1pJdBMu6CVN0YvmGY8iE5k+YhtU+uPks4Ekl2vFOaq4oX6SUw94UC0zhRlkRSbSUFGI2bAUpQRgVGuCydbbiWWmRCaa4Ar4+bU9PCaDeV2FtKtraTS2jV3RxTTp9OCc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bqRA3QNb; 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="bqRA3QNb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C39A71F0089C; Mon, 14 Sep 2026 14:44:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789397097; bh=Gmq/rX+sVM9Hs+BxObGYka5NbSCER5H2QYTBCAxyvwk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=bqRA3QNbasQ8DrHsKmqlwy9wG2lT8VVfjg6LzxYxnCX3jh7ux1jsm7Q3hdxxCndDN nHqVED8xcle2ZqP9x1W0BvsO4H99I+BczwrFfpyeY15TFPxR5fzQZ/kG4jwkvfTmJJ k2y4X9yD0jm0BwZXav5SG0fwghFLy4HfYi+TzrjyjqQ6oxyWOMxcpX3xxZtxvOE/PQ NKp47PX10hdYkq6vxLJObHV26mJD9q5gxbTW/dD5I57cCE8Qm3Ba4vb5LqzPVGyxt4 NPBT10OFDmsTUbebfyod0oy2e+l9ulAIrrS3XdQIJ5knAVyzeSmpcl6VBu7moGNAI/ CIx4KguVr5x9w== 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 v2 5/8] mm/damon/sysfs: support hugepage_size probe filter Date: Mon, 14 Sep 2026 07:44:42 -0700 Message-ID: <20260914144448.93732-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260914144448.93732-1-sj@kernel.org> References: <20260914144448.93732-1-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