[PATCH 09/11] mm/damon/sysfs: split out kdamond-independent schemes stats update logic into a new function

SeongJae Park
2022-10-24T22:29:40Z

'damon_sysfs_schemes_update_stats()' is coupled with both
damon_sysfs_kdamond and damon_sysfs_schemes. It's a wide range of types
dependency. It makes splitting the logics a little bit distracting.
Split the function so that each function is coupled with smaller range
of types.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/sysfs.c | 35 +++++++++++++++++++++--------------
1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 129743292e17..082c55e68e0e 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -2204,6 +2204,25 @@ static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
mutex_unlock(&ctx->kdamond_lock);
}

+static void damon_sysfs_schemes_update_stats(
+ struct damon_sysfs_schemes *sysfs_schemes,
+ struct damon_ctx *ctx)
+{
+ struct damos *scheme;
+ int schemes_idx = 0;
+
+ damon_for_each_scheme(scheme, ctx) {
+ struct damon_sysfs_stats *sysfs_stats;
+
+ sysfs_stats = sysfs_schemes->schemes_arr[schemes_idx++]->stats;
+ sysfs_stats->nr_tried = scheme->stat.nr_tried;
+ 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->qt_exceeds = scheme->stat.qt_exceeds;
+ }
+}
+
/*
* damon_sysfs_upd_schemes_stats() - Update schemes stats sysfs files.
* @kdamond: The kobject wrapper that associated to the kdamond thread.
@@ -2216,23 +2235,11 @@ static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
static int damon_sysfs_upd_schemes_stats(struct damon_sysfs_kdamond *kdamond)
{
struct damon_ctx *ctx = kdamond->damon_ctx;
- struct damon_sysfs_schemes *sysfs_schemes;
- struct damos *scheme;
- int schemes_idx = 0;

if (!ctx)
return -EINVAL;
- sysfs_schemes = kdamond->contexts->contexts_arr[0]->schemes;
- damon_for_each_scheme(scheme, ctx) {
- struct damon_sysfs_stats *sysfs_stats;
-
- sysfs_stats = sysfs_schemes->schemes_arr[schemes_idx++]->stats;
- sysfs_stats->nr_tried = scheme->stat.nr_tried;
- 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->qt_exceeds = scheme->stat.qt_exceeds;
- }
+ damon_sysfs_schemes_update_stats(
+ kdamond->contexts->contexts_arr[0]->schemes, ctx);
return 0;
}

--
2.25.1