From: Miaohe Lin <linmiaohe@xxxxxxxxxx> [ Upstream commit dac0d1cfda56472378d330b1b76b9973557a7b1d ] There is a memory leak in z3fold_destroy_pool() as it forgets to free_percpu pool->unbuddied. Call free_percpu for pool->unbuddied to fix this issue. Link: https://lkml.kernel.org/r/20210619093151.1492174-6-linmiaohe@xxxxxxxxxx Fixes: d30561c56f41 ("z3fold: use per-cpu unbuddied lists") Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Reviewed-by: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx> Cc: Hillf Danton <hdanton@xxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- mm/z3fold.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/z3fold.c b/mm/z3fold.c index 9d889ad2bb86..56a5551f2ba8 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -1059,6 +1059,7 @@ static void z3fold_destroy_pool(struct z3fold_pool *pool) destroy_workqueue(pool->compact_wq); destroy_workqueue(pool->release_wq); z3fold_unregister_migration(pool); + free_percpu(pool->unbuddied); kfree(pool); } -- 2.30.2
