[PATCH 07/12] mm/damon/sysfs-schemes: remove unnecessary online tuning handling code

SeongJae Park
2024-06-18T18:18:21Z

damon/sysfs-schemes.c contains code for handling of online DAMON
parameters update edge cases. The logics are no more necessary since
damon_commit_ctx() and damon_commit_quota_goals() takes care of the
cases. Remove the unnecessary code.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/sysfs-schemes.c | 68 ++--------------------------------------
1 file changed, 3 insertions(+), 65 deletions(-)

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 1bccf2619e11..77c0265dff5c 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -1912,10 +1912,6 @@ static int damon_sysfs_set_scheme_filters(struct damos *scheme,
struct damon_sysfs_scheme_filters *sysfs_filters)
{
int i;
- struct damos_filter *filter, *next;
-
- damos_for_each_filter_safe(filter, next, scheme)
- damos_destroy_filter(filter);

for (i = 0; i < sysfs_filters->nr; i++) {
struct damon_sysfs_scheme_filter *sysfs_filter =
@@ -1955,12 +1951,9 @@ static int damos_sysfs_set_quota_score(
struct damos_sysfs_quota_goals *sysfs_goals,
struct damos_quota *quota)
{
- struct damos_quota_goal *goal, *next;
+ struct damos_quota_goal *goal;
int i;

- damos_for_each_quota_goal_safe(goal, next, quota)
- damos_destroy_quota_goal(goal);
-
for (i = 0; i < sysfs_goals->nr; i++) {
struct damos_sysfs_quota_goal *sysfs_goal =
sysfs_goals->goals_arr[i];
@@ -2091,67 +2084,12 @@ static struct damos *damon_sysfs_mk_scheme(
return scheme;
}

-static void damon_sysfs_update_scheme(struct damos *scheme,
- struct damon_sysfs_scheme *sysfs_scheme)
-{
- struct damon_sysfs_access_pattern *access_pattern =
- sysfs_scheme->access_pattern;
- struct damon_sysfs_quotas *sysfs_quotas = sysfs_scheme->quotas;
- struct damon_sysfs_weights *sysfs_weights = sysfs_quotas->weights;
- struct damon_sysfs_watermarks *sysfs_wmarks = sysfs_scheme->watermarks;
- int err;
-
- scheme->pattern.min_sz_region = access_pattern->sz->min;
- scheme->pattern.max_sz_region = access_pattern->sz->max;
- scheme->pattern.min_nr_accesses = access_pattern->nr_accesses->min;
- scheme->pattern.max_nr_accesses = access_pattern->nr_accesses->max;
- scheme->pattern.min_age_region = access_pattern->age->min;
- scheme->pattern.max_age_region = access_pattern->age->max;
-
- scheme->action = sysfs_scheme->action;
- scheme->apply_interval_us = sysfs_scheme->apply_interval_us;
- scheme->target_nid = sysfs_scheme->target_nid;
-
- scheme->quota.ms = sysfs_quotas->ms;
- scheme->quota.sz = sysfs_quotas->sz;
- scheme->quota.reset_interval = sysfs_quotas->reset_interval_ms;
- scheme->quota.weight_sz = sysfs_weights->sz;
- scheme->quota.weight_nr_accesses = sysfs_weights->nr_accesses;
- scheme->quota.weight_age = sysfs_weights->age;
-
- err = damos_sysfs_set_quota_score(sysfs_quotas->goals, &scheme->quota);
- if (err) {
- damon_destroy_scheme(scheme);
- return;
- }
-
- scheme->wmarks.metric = sysfs_wmarks->metric;
- scheme->wmarks.interval = sysfs_wmarks->interval_us;
- scheme->wmarks.high = sysfs_wmarks->high;
- scheme->wmarks.mid = sysfs_wmarks->mid;
- scheme->wmarks.low = sysfs_wmarks->low;
-
- err = damon_sysfs_set_scheme_filters(scheme, sysfs_scheme->filters);
- if (err)
- damon_destroy_scheme(scheme);
-}
-
int damon_sysfs_set_schemes(struct damon_ctx *ctx,
struct damon_sysfs_schemes *sysfs_schemes)
{
- struct damos *scheme, *next;
- int i = 0;
-
- damon_for_each_scheme_safe(scheme, next, ctx) {
- if (i < sysfs_schemes->nr)
- damon_sysfs_update_scheme(scheme,
- sysfs_schemes->schemes_arr[i]);
- else
- damon_destroy_scheme(scheme);
- i++;
- }
+ int i;

- for (; i < sysfs_schemes->nr; i++) {
+ for (i = 0; i < sysfs_schemes->nr; i++) {
struct damos *scheme, *next;

scheme = damon_sysfs_mk_scheme(sysfs_schemes->schemes_arr[i]);
--
2.39.2