diff options
| author | SeongJae Park <sj@kernel.org> | 2025-01-06 11:33:53 -0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-25 20:22:27 -0800 |
| commit | 9caac9d55fa6d90d0f95000fa8ed424c151421e3 (patch) | |
| tree | 5848b4bbb25806221ddc4243b54a8ee8a4d46997 | |
| parent | 60fa9355a6c620f7b727d3fdb433fb6cf714a9b0 (diff) | |
mm/damon/syfs-schemes: implement per-scheme filter-passed bytes stat
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.
Link: https://lkml.kernel.org/r/20250106193401.109161-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/damon/sysfs-schemes.c | 16 |
1 files changed, 16 insertions, 0 deletions
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; }; @@ -232,6 +233,15 @@ static ssize_t sz_applied_show(struct kobject *kobj, return sysfs_emit(buf, "%lu\n", stats->sz_applied); } +static ssize_t sz_ops_filter_passed_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct damon_sysfs_stats *stats = 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_applied_attr = static struct kobj_attribute damon_sysfs_stats_sz_applied_attr = __ATTR_RO_MODE(sz_applied, 0400); +static struct kobj_attribute damon_sysfs_stats_sz_ops_filter_passed_attr = + __ATTR_RO_MODE(sz_ops_filter_passed, 0400); + static struct kobj_attribute damon_sysfs_stats_qt_exceeds_attr = __ATTR_RO_MODE(qt_exceeds, 0400); @@ -266,6 +279,7 @@ static struct attribute *damon_sysfs_stats_attrs[] = { &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 = scheme->stat.sz_tried; sysfs_stats->nr_applied = scheme->stat.nr_applied; sysfs_stats->sz_applied = scheme->stat.sz_applied; + sysfs_stats->sz_ops_filter_passed = + scheme->stat.sz_ops_filter_passed; sysfs_stats->qt_exceeds = scheme->stat.qt_exceeds; } } |