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b=B41n/2Unc9a6Pk/lnd5/fPIKAtj2AbHv1bjkX/IBG1vWxEugiJwc+hUw1s0wvezH9 uc0XOKzYZk7hTBPKo3+yBBu3WeAmQhHFdxyXapVZDGI2dW8bI3ThrY9l6jYCatavKv zhh9kRQ2jRKxtTPpnWRCd6jP3SGLLsmXA96ddiX/NZepA+quvotd/Jk3TAb5rX0e+J z0laur6Y8B9KezX1cX5sHlaAsRczKQ8JIm6LfmMbo5XGWAQfgymAVwwbWs8htg60+E YxLLh91uqMvUqlpf/bf8FC1fBNWoPRXmhrfpDtxkuxFpdUKdhq7b34VWohvCInYd9P emUSMb+DclfTQ== 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 v4 3/7] mm/damon/sysfs-schemes: support quota goal complement flag Date: Sun, 27 Sep 2026 05:05:27 -0700 Message-ID: <20260927120533.50484-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260927120533.50484-1-sj@kernel.org> References: <20260927120533.50484-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 42FD940005 X-Stat-Signature: spmdru3e3na66ho3oqaog7juy5rwpo4k X-HE-Tag: 1790510751-594206 X-HE-Meta: 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 2idp0Jdo V2H4XKArq5UeN5SfjfK56fgGTdmiLOSZZPhL/VCgW+TwO7gAejAEcKWN5rwVyp7+2gCkGK88ASFNXK5PMrldjnAa2w0bM+U7WGHBnjb1YPqtRoLjfReW6WwwwX9uGXl4kLiK1hZLax9aqs3gobgQQJ1wCLXhzTL2yWOEqo6RxTq4ZuCp0zO6RRYqWBCUHjRNr8b8lXO3XBSjM4NoBDR8+B2zXpd5/ZvU+ZQlGUp77oTjuN4E= 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