mm/damon/core: split out scheme stat update logic into a new function

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.

Link: https://lkml.kernel.org/r/20221026225943.100429-4-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/core.c b/mm/damon/core.c
index c1a912b..3a810c6 100644 (file)
--- 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,