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| author |   Miaohe Lin <linmiaohe@huawei.com> | 2022-03-16 16:15:28 +0800 |
|---|---|---|
| committer |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-21 13:01:36 -0400 |
| commit | 2a3c4bce3edb0d54983384aa8a88c0da330638f4 (patch) | |
| tree | 324aa89f1e42f796d24f6ad992c332ad3c53b352 /mm/damon | |
| parent | selftests/vm/transhuge-stress: Support file-backed PMD folios (diff) | |
| download | linux-dev-2a3c4bce3edb0d54983384aa8a88c0da330638f4.tar.xz linux-dev-2a3c4bce3edb0d54983384aa8a88c0da330638f4.zip | |
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>
Diffstat (limited to 'mm/damon')
| -rw-r--r-- | mm/damon/paddr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index ae24549921e2..74c2b6e1ca48 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -152,7 +152,7 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *page_sz) need_lock = !folio_test_anon(folio) || folio_test_ksm(folio); if (need_lock && !folio_trylock(folio)) { folio_put(folio); - return NULL; + return false; } rmap_walk(folio, &rwc); |