mm/damon/sysfs: split out kdamond-independent schemes stats update logic into a new function
'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.
Link: https://lkml.kernel.org/r/20221026225943.100429-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 6774a66..836df19 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -2246,25 +2246,13 @@ static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
mutex_unlock(&ctx->kdamond_lock);
}
-/*
- * damon_sysfs_upd_schemes_stats() - Update schemes stats sysfs files.
- * @kdamond: The kobject wrapper that associated to the kdamond thread.
- *
- * This function reads the schemes stats of specific kdamond and update the
- * related values for sysfs files. This function should be called from DAMON
- * callbacks while holding ``damon_syfs_lock``, to safely access the DAMON
- * contexts-internal data and DAMON sysfs variables.
- */
-static int damon_sysfs_upd_schemes_stats(struct damon_sysfs_kdamond *kdamond)
+static void damon_sysfs_schemes_update_stats(
+ struct damon_sysfs_schemes *sysfs_schemes,
+ struct damon_ctx *ctx)
{
- 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;
@@ -2279,6 +2267,25 @@ static int damon_sysfs_upd_schemes_stats(struct damon_sysfs_kdamond *kdamond)
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.
+ *
+ * This function reads the schemes stats of specific kdamond and update the
+ * related values for sysfs files. This function should be called from DAMON
+ * callbacks while holding ``damon_syfs_lock``, to safely access the DAMON
+ * contexts-internal data and DAMON sysfs variables.
+ */
+static int damon_sysfs_upd_schemes_stats(struct damon_sysfs_kdamond *kdamond)
+{
+ struct damon_ctx *ctx = kdamond->damon_ctx;
+
+ if (!ctx)
+ return -EINVAL;
+ damon_sysfs_schemes_update_stats(
+ kdamond->contexts->contexts_arr[0]->schemes, ctx);
return 0;
}
