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b=ezQ/1aZFalTx1tc4WE5blL0sFdIGueOVa2fVvXYtcl4tnQjsZpVE6/3DZmYKpS2j2 AlOsmVC0ztXMRHfdOqVCQ8wFy0oPhA5HjanbrKDHGLeFksOIhhjkMMYORRYruvDDr/ W5jQERYzL4cgj7JwdZHzJZH3ClcEkANRBYkgLxJQdDqJCE6s8WlDLeQIefj1PKvNdl 2xH1mhb8R9SBg/8JMX0nQlKK7xxkvVeEYg7eyi8Rol1rAgGmwXcj7X+3td7qmPefuI 2yr1fbxck3+wxbv4y4bWR2lP0BI7N521e8EIOPO1qmBHEgJ7RftGcOigq+Q0nKW+Ik O2lWBP2mnZiyA== 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 3/7] mm/damon/sysfs-schemes: support quota goal complement flag Date: Wed, 23 Sep 2026 03:14:48 -0700 Message-ID: <20260923101454.5748-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260923101454.5748-1-sj@kernel.org> References: <20260923101454.5748-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Stat-Signature: 49zeyu7utwbjd55sh6o4goyye4wnp489 X-Rspam-User: X-Rspamd-Queue-Id: EC072C0005 X-HE-Tag: 1790158508-1802 X-HE-Meta: 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 4OvOU3Kf NYylKCm2w7URxAgMG5b/5k591i0qc+5jcfnb3gE9QBqasQ7jJ8OxJ+nQ91Ak3F7p5lhFC1jk/BKOiXywhNa/EF5gh8QOp0+R6AiBpAva9QwgdP2Ej4jWO9nAVfD50b7T423j9OuWNMRuLSZv4JbyDOQS8SJ3KocGjkYRyfrbiiD463LYFXKcrqPEHRlpq+8sEDNSpg7/Cna6nmJ9iCx+cH3wVYLoCjo80x49BTP26oOue73I= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add a new sysfs file, complement, under the quota goal directory. It works for setting and getting the quota goal metric complement flag value. Signed-off-by: SJ 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 06af417bc9a2..8f083611741f 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -1220,6 +1220,7 @@ static const struct kobj_type damon_sysfs_watermarks_ktype = { struct damos_sysfs_quota_goal { struct kobject kobj; enum damos_quota_goal_metric metric; + bool complement; unsigned long target_value; unsigned long current_value; int nid; @@ -1316,6 +1317,30 @@ static ssize_t target_metric_store(struct kobject *kobj, return -EINVAL; } +static ssize_t complement_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct damos_sysfs_quota_goal *goal = container_of(kobj, + struct damos_sysfs_quota_goal, kobj); + + return sysfs_emit(buf, "%c\n", goal->complement ? 'Y' : 'N'); +} + +static ssize_t complement_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t count) +{ + struct damos_sysfs_quota_goal *goal = container_of(kobj, + struct damos_sysfs_quota_goal, kobj); + bool complement; + int err = kstrtobool(buf, &complement); + + if (err) + return err; + + goal->complement = complement; + return count; +} + static ssize_t target_value_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -1424,6 +1449,9 @@ static void damos_sysfs_quota_goal_release(struct kobject *kobj) static struct kobj_attribute damos_sysfs_quota_goal_target_metric_attr = __ATTR_RW_MODE(target_metric, 0600); +static struct kobj_attribute damos_sysfs_quota_goal_complement_attr = + __ATTR_RW_MODE(complement, 0600); + static struct kobj_attribute damos_sysfs_quota_goal_target_value_attr = __ATTR_RW_MODE(target_value, 0600); @@ -1438,6 +1466,7 @@ static struct kobj_attribute damos_sysfs_quota_goal_path_attr = static struct attribute *damos_sysfs_quota_goal_attrs[] = { &damos_sysfs_quota_goal_target_metric_attr.attr, + &damos_sysfs_quota_goal_complement_attr.attr, &damos_sysfs_quota_goal_target_value_attr.attr, &damos_sysfs_quota_goal_current_value_attr.attr, &damos_sysfs_quota_goal_nid_attr.attr, @@ -2869,7 +2898,8 @@ static int damos_sysfs_add_quota_score( if (!sysfs_goal->target_value) continue; - goal = damos_new_quota_goal(sysfs_goal->metric, false, + goal = damos_new_quota_goal(sysfs_goal->metric, + sysfs_goal->complement, sysfs_goal->target_value); if (!goal) return -ENOMEM; -- 2.47.3