From nobody Fri Dec 19 04:51:17 2025 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 817DD1A0B15; Thu, 19 Dec 2024 04:03:49 +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=1734581029; cv=none; b=s9ePAaml4hCf4TopS2A7LDB78668xXdfSDdaIcEgGDXde6FMSymbyAVNFrnfxE8WiRdZktRqrWqzGzC5gT6K6C6OUAe7MK4x3r4JPdc8LrUmLogPwH+XxKGQmR6ZPQffFwoj6COJvuZB5FiyFYc+EJYySG+2NBK/r+/YvubNgDk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734581029; c=relaxed/simple; bh=ftF2xdlxRC1hxynZygPWzsGSDwQOUYQsL2NA51xCWlQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=a+UjWMLhLyV/XVOqbFW/qUwERFZQRcad9bKvg9FsQQwj26InBdGZK9b7xtNA1fNtD5gnN6gZMtGnLDY+RdMTYHvQ4l75imwzEIY4LdX2ynfcWSFHYBUmPkklyfM1YySWjJfEBI77h0UmWf8AFyIb0teDRFRmt48pXD00WOyC/Qo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AKbtPxMH; 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="AKbtPxMH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DCD8FC4CEDF; Thu, 19 Dec 2024 04:03:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734581029; bh=ftF2xdlxRC1hxynZygPWzsGSDwQOUYQsL2NA51xCWlQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AKbtPxMHjXd7OQ5NwLrw2rb6mfgfVvKC+Xdq9KN6MwWXV9XNXYG4JzMifPgH+ga/s Vwr8ZzhYg18JFB/OYTJP+eOGnvUF9fSjiXvYRxbBsRiC1QEUjiREfqmzGlKo2lk87l qEcOWHjI00o3g80l/lUYFmovE1es9Vt9QIcwW452AR+Wmy52mDaiEGrHflcwcVmHJ6 gF5ob4nECqNkAzPa7j3GmYiVmyb+nb7R1xmJ9IPL3dpdzWyPqJhGrkXPIzmK7JtiDg cKuHyBjb+4x3visLeMmz7Sv6wUhjFtO0Bv/IXPOA5CSk+G6lNHGNanfA1idK/atgZc nrrnve8rqAACg== From: SeongJae Park To: Cc: kernel-team@meta.com, SeongJae Park , damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 09/18] mm/damon/syfs-schemes: implement per-scheme filter-passed bytes stat Date: Wed, 18 Dec 2024 20:03:18 -0800 Message-Id: <20241219040327.61902-10-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241219040327.61902-1-sj@kernel.org> References: <20241219040327.61902-1-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: quoted-printable Content-Type: text/plain; charset="utf-8" Add a new DAMON sysfs interface file under scheme stat directory, namely 'sz_ops_filter_passed'. It represents total bytes that passed region-internal DAMOS filters of the scheme that handled by the DAMON operations set layer. Signed-off-by: SeongJae Park --- mm/damon/sysfs-schemes.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 5c4490b97258..b447c412b02c 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -188,6 +188,7 @@ struct damon_sysfs_stats { unsigned long sz_tried; unsigned long nr_applied; unsigned long sz_applied; + unsigned long sz_ops_filter_passed; unsigned long qt_exceeds; }; =20 @@ -232,6 +233,15 @@ static ssize_t sz_applied_show(struct kobject *kobj, return sysfs_emit(buf, "%lu\n", stats->sz_applied); } =20 +static ssize_t sz_ops_filter_passed_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct damon_sysfs_stats *stats =3D container_of(kobj, + struct damon_sysfs_stats, kobj); + + return sysfs_emit(buf, "%lu\n", stats->sz_ops_filter_passed); +} + static ssize_t qt_exceeds_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -258,6 +268,9 @@ static struct kobj_attribute damon_sysfs_stats_nr_appli= ed_attr =3D static struct kobj_attribute damon_sysfs_stats_sz_applied_attr =3D __ATTR_RO_MODE(sz_applied, 0400); =20 +static struct kobj_attribute damon_sysfs_stats_sz_ops_filter_passed_attr = =3D + __ATTR_RO_MODE(sz_ops_filter_passed, 0400); + static struct kobj_attribute damon_sysfs_stats_qt_exceeds_attr =3D __ATTR_RO_MODE(qt_exceeds, 0400); =20 @@ -266,6 +279,7 @@ static struct attribute *damon_sysfs_stats_attrs[] =3D { &damon_sysfs_stats_sz_tried_attr.attr, &damon_sysfs_stats_nr_applied_attr.attr, &damon_sysfs_stats_sz_applied_attr.attr, + &damon_sysfs_stats_sz_ops_filter_passed_attr.attr, &damon_sysfs_stats_qt_exceeds_attr.attr, NULL, }; @@ -2077,6 +2091,8 @@ void damon_sysfs_schemes_update_stats( sysfs_stats->sz_tried =3D scheme->stat.sz_tried; sysfs_stats->nr_applied =3D scheme->stat.nr_applied; sysfs_stats->sz_applied =3D scheme->stat.sz_applied; + sysfs_stats->sz_ops_filter_passed =3D + scheme->stat.sz_ops_filter_passed; sysfs_stats->qt_exceeds =3D scheme->stat.qt_exceeds; } } --=20 2.39.5