6.17-stable review patch. If anyone has any objections, please let me know.
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From: Enze Li lienze@kylinos.cn
commit 7071537159be845a5c4ed5fb7d3db25aa4bd04a3 upstream.
Currently, damon_destroy_scheme() only cleans up the filter list but leaves ops_filter untouched, which could lead to memory leaks when a scheme is destroyed.
This patch ensures both filter and ops_filter are properly freed in damon_destroy_scheme(), preventing potential memory leaks.
Link: https://lkml.kernel.org/r/20251014084225.313313-1-lienze@kylinos.cn Fixes: ab82e57981d0 ("mm/damon/core: introduce damos->ops_filters") Signed-off-by: Enze Li lienze@kylinos.cn Reviewed-by: SeongJae Park sj@kernel.org Tested-by: SeongJae Park sj@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- mm/damon/core.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -451,6 +451,9 @@ void damon_destroy_scheme(struct damos * damos_for_each_filter_safe(f, next, s) damos_destroy_filter(f);
+ damos_for_each_ops_filter_safe(f, next, s) + damos_destroy_filter(f); + kfree(s->migrate_dests.node_id_arr); kfree(s->migrate_dests.weight_arr); damon_del_scheme(s);