From nobody Mon Feb 9 05:53:30 2026 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 2537E1F9EAB; Fri, 27 Dec 2024 21:08:33 +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=1735333715; cv=none; b=KLiX+183fSusoKL+zL8hdharrPmQ8yYMHpnZ0QrMbzahlc/iyY9Zy76O73QMNZSpgEVaArOxwc2HxhTjeSvS9fKq/jh/Jwuv/Cnm5W9Oc1Z2nzbqKjeP985FcpzVAKrcfmVnT8Qc3832M0yHubpWT0pdr8JCJmZZ/FpfTdO1KUk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735333715; c=relaxed/simple; bh=ZERQXRIpbhEDVEpD6J6LgTdFsTQpbeeZuCqI48fC6sI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Rkl2JHtH2tbwxqlVEbCDxcHqpp+eox6gJQE4VYKeuxVgGXI7b9L4+dEjCxHUZ6IK1UTosai4gYkfESXYGdQ8mY6KcVRteUKbnOzUKT9f5CtydIwBvkRww3wQlm6qQKXrbWQKN9cE5oRxXqku8T5rUkfOd/lsVl7wBnxlNXOBR6A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DrLt89ic; 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="DrLt89ic" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 437FBC4CEE2; Fri, 27 Dec 2024 21:08:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1735333713; bh=ZERQXRIpbhEDVEpD6J6LgTdFsTQpbeeZuCqI48fC6sI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DrLt89icA879gSM39Ub/e7HV147OGR4ZXrFChzBzd0p8ILo78pml8/I8T2/zDwh3h HwqflM4E+tOSgKiITbK/KpcoVrSaMURpRrKuUmmWrQYnL2tJ/UMRl21g8UZTJqEUMW u7/nRtrszEUkMjtWvMdxfLJNF96VeKKSqf7HLnDsmy79/C1QW6aGuOm19deAEEtY8r ZGSEt0Y0nqoSmj8QkS4XXzEUFf7ASUGCU9U0fp/5eSSd2JkMpfblFkMNE3Xa/SOU/C BVMNdxZus9nHeBjJpwZwK/p8HVVhNyPoUtgdRo0wOK6rChQGvh7k78/frABWDndXxx +ZHav/02/UuQA== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v2 06/10] mm/damon/sysfs-schemes: add a file for setting damos_filter->pass Date: Fri, 27 Dec 2024 13:08:15 -0800 Message-Id: <20241227210819.63776-7-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241227210819.63776-1-sj@kernel.org> References: <20241227210819.63776-1-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" Only kernel-space DAMON API users can use inclusive DAMOS filters. Add a sysfs file named 'pass' under DAMOS filter directory of DAMON sysfs interface, to let the user-space users use inclusive DAMOS filters. Signed-off-by: SeongJae Park --- mm/damon/sysfs-schemes.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 9a883e8aea1c..9e171046ee94 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -313,6 +313,7 @@ struct damon_sysfs_scheme_filter { struct kobject kobj; enum damos_filter_type type; bool matching; + bool pass; char *memcg_path; struct damon_addr_range addr_range; int target_idx; @@ -385,6 +386,30 @@ static ssize_t matching_store(struct kobject *kobj, return count; } =20 +static ssize_t pass_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct damon_sysfs_scheme_filter *filter =3D container_of(kobj, + struct damon_sysfs_scheme_filter, kobj); + + return sysfs_emit(buf, "%c\n", filter->pass ? 'Y' : 'N'); +} + +static ssize_t pass_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t count) +{ + struct damon_sysfs_scheme_filter *filter =3D container_of(kobj, + struct damon_sysfs_scheme_filter, kobj); + bool pass; + int err =3D kstrtobool(buf, &pass); + + if (err) + return err; + + filter->pass =3D pass; + return count; +} + static ssize_t memcg_path_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -482,6 +507,9 @@ static struct kobj_attribute damon_sysfs_scheme_filter_= type_attr =3D static struct kobj_attribute damon_sysfs_scheme_filter_matching_attr =3D __ATTR_RW_MODE(matching, 0600); =20 +static struct kobj_attribute damon_sysfs_scheme_filter_pass_attr =3D + __ATTR_RW_MODE(pass, 0600); + static struct kobj_attribute damon_sysfs_scheme_filter_memcg_path_attr =3D __ATTR_RW_MODE(memcg_path, 0600); =20 @@ -497,6 +525,7 @@ static struct kobj_attribute damon_sysfs_scheme_filter_= damon_target_idx_attr =3D static struct attribute *damon_sysfs_scheme_filter_attrs[] =3D { &damon_sysfs_scheme_filter_type_attr.attr, &damon_sysfs_scheme_filter_matching_attr.attr, + &damon_sysfs_scheme_filter_pass_attr.attr, &damon_sysfs_scheme_filter_memcg_path_attr.attr, &damon_sysfs_scheme_filter_addr_start_attr.attr, &damon_sysfs_scheme_filter_addr_end_attr.attr, @@ -1901,7 +1930,8 @@ static int damon_sysfs_add_scheme_filters(struct damo= s *scheme, sysfs_filters->filters_arr[i]; struct damos_filter *filter =3D damos_new_filter(sysfs_filter->type, - sysfs_filter->matching, false); + sysfs_filter->matching, + sysfs_filter->pass); int err; =20 if (!filter) --=20 2.39.5