From: Miaohe Lin linmiaohe@huawei.com
[ 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@huawei.com Fixes: d30561c56f41 ("z3fold: use per-cpu unbuddied lists") Signed-off-by: Miaohe Lin linmiaohe@huawei.com Reviewed-by: Vitaly Wool vitaly.wool@konsulko.com Cc: Hillf Danton hdanton@sina.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- mm/z3fold.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/mm/z3fold.c b/mm/z3fold.c index 7fe7adaaad01..33d8487ef6a8 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); }