[PATCH v2 2/3] mm/damon/paddr: minor refactor of damon_pa_young()

Kefeng Wang
2023-03-03T08:23:02Z

Omit three lines by unified folio_put(), and make code more clear.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
mm/damon/paddr.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index 3fda00a0f786..2ef9db0189ca 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -130,24 +130,21 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
accessed = false;
else
accessed = true;
- folio_put(folio);
goto out;
}

need_lock = !folio_test_anon(folio) || folio_test_ksm(folio);
- if (need_lock && !folio_trylock(folio)) {
- folio_put(folio);
- return false;
- }
+ if (need_lock && !folio_trylock(folio))
+ goto out;

rmap_walk(folio, &rwc);

if (need_lock)
folio_unlock(folio);
- folio_put(folio);

-out:
*folio_sz = folio_size(folio);
+out:
+ folio_put(folio);
return accessed;
}

--
2.35.3