diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/damon/sysfs-schemes.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 7a8a39f2679b7..53a90ac678fb9 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -826,15 +826,48 @@ static const struct kobj_type damon_sysfs_watermarks_ktype = { struct damos_sysfs_quota_goal { struct kobject kobj; + enum damos_quota_goal_metric metric; unsigned long target_value; unsigned long current_value; }; +/* This should match with enum damos_action */ +static const char * const damos_sysfs_quota_goal_metric_strs[] = { + "user_input", + "some_mem_psi_us", +}; + static struct damos_sysfs_quota_goal *damos_sysfs_quota_goal_alloc(void) { return kzalloc(sizeof(struct damos_sysfs_quota_goal), GFP_KERNEL); } +static ssize_t target_metric_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, "%s\n", + damos_sysfs_quota_goal_metric_strs[goal->metric]); +} + +static ssize_t target_metric_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); + enum damos_quota_goal_metric m; + + for (m = 0; m < NR_DAMOS_QUOTA_GOAL_METRICS; m++) { + if (sysfs_streq(buf, damos_sysfs_quota_goal_metric_strs[m])) { + goal->metric = m; + return count; + } + } + return -EINVAL; +} + static ssize_t target_value_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -880,6 +913,9 @@ static void damos_sysfs_quota_goal_release(struct kobject *kobj) kfree(container_of(kobj, struct damos_sysfs_quota_goal, 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_target_value_attr = __ATTR_RW_MODE(target_value, 0600); @@ -887,6 +923,7 @@ static struct kobj_attribute damos_sysfs_quota_goal_current_value_attr = __ATTR_RW_MODE(current_value, 0600); static struct attribute *damos_sysfs_quota_goal_attrs[] = { + &damos_sysfs_quota_goal_target_metric_attr.attr, &damos_sysfs_quota_goal_target_value_attr.attr, &damos_sysfs_quota_goal_current_value_attr.attr, NULL, @@ -1899,11 +1936,12 @@ static int damos_sysfs_set_quota_score( if (!sysfs_goal->target_value) continue; - goal = damos_new_quota_goal(DAMOS_QUOTA_USER_INPUT, + goal = damos_new_quota_goal(sysfs_goal->metric, sysfs_goal->target_value); if (!goal) return -ENOMEM; - goal->current_value = sysfs_goal->current_value; + if (sysfs_goal->metric == DAMOS_QUOTA_USER_INPUT) + goal->current_value = sysfs_goal->current_value; damos_add_quota_goal(quota, goal); } return 0; |