mm/damon/paddr: fix missing folio_sz update in damon_pa_young()

The *folio_sz in damon_pa_young() will be used(as last_folio_sz) by __damon_pa_check_access(), so it's need to be updated, fix missing branch. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Kefeng Wang <[email protected]> Reviewed-by: SeongJae Park <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
kawasaki · May 3, 2023 · 70307b0 · 70307b0
1 parent b6993be
commit 70307b0
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
@@ -134,10 +134,8 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
 	}
 
 	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);