mm/damon: minor cleanup for damon_pa_young
authorMiaohe Lin <linmiaohe@huawei.com>
Wed, 16 Mar 2022 08:15:28 +0000 (16:15 +0800)
committerMatthew Wilcox (Oracle) <willy@infradead.org>
Mon, 21 Mar 2022 17:01:36 +0000 (13:01 -0400)
commit2a3c4bce3edb0d54983384aa8a88c0da330638f4
tree324aa89f1e42f796d24f6ad992c332ad3c53b352
parent72e725887413f031fa72d27fea5795450bab1940
mm/damon: minor cleanup for damon_pa_young

if need_lock is true but folio_trylock fails, we should return false
instead of NULL to match the return value type exactly. No functional
change intended.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
mm/damon/paddr.c