The function for applying a given DAMON scheme action to a given DAMON
region, 'damos_apply_scheme()' is not quite short.  Make it better to
read by splitting out the stat update logic into a new function.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/core.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index c1a912bc46ae..3a810c6e26bc 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -755,6 +755,16 @@ static bool damos_skip_charged_region(struct damon_target *t,
 	return false;
 }
 
+static void damos_update_stat(struct damos *s,
+		unsigned long sz_tried, unsigned long sz_applied)
+{
+	s->stat.nr_tried++;
+	s->stat.sz_tried += sz_tried;
+	if (sz_applied)
+		s->stat.nr_applied++;
+	s->stat.sz_applied += sz_applied;
+}
+
 static void damos_apply_scheme(struct damon_ctx *c, struct damon_target *t,
 		struct damon_region *r, struct damos *s)
 {
@@ -786,11 +796,7 @@ static void damos_apply_scheme(struct damon_ctx *c, struct damon_target *t,
 		r->age = 0;
 
 update_stat:
-	s->stat.nr_tried++;
-	s->stat.sz_tried += sz;
-	if (sz_applied)
-		s->stat.nr_applied++;
-	s->stat.sz_applied += sz_applied;
+	damos_update_stat(s, sz, sz_applied);
 }
 
 static void damon_do_apply_schemes(struct damon_ctx *c,
-- 
2.25.1