[PATCH 5/6] mm/damon/lru_sort: reset enabled when DAMON start failed

From: SeongJae Park
Date: Sun Jul 06 2025 - 15:33:09 EST


When the startup fails, 'enabled' parameter is not reset. As a result,
users show the parameter 'Y' while it is not really working. Fix it by
resetting 'enabled' to 'false' when the work is failed.

Fixes: 7a034fbba336 ("mm/damon/lru_sort: enable and disable synchronously")
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
mm/damon/lru_sort.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mm/damon/lru_sort.c b/mm/damon/lru_sort.c
index 4af8fd4a390b..9bd8a1a115e0 100644
--- a/mm/damon/lru_sort.c
+++ b/mm/damon/lru_sort.c
@@ -325,7 +325,7 @@ static int __init damon_lru_sort_init(void)
int err = damon_modules_new_paddr_ctx_target(&ctx, &target);

if (err)
- return err;
+ goto out;

ctx->callback.after_wmarks_check = damon_lru_sort_after_wmarks_check;
ctx->callback.after_aggregation = damon_lru_sort_after_aggregation;
@@ -334,6 +334,9 @@ static int __init damon_lru_sort_init(void)
if (enabled)
err = damon_lru_sort_turn(true);

+out:
+ if (err && enabled)
+ enabled = false;
return err;
}

--
2.39.5