Commit 49496327 authored Jun 30, 2021 by Miaohe Lin Committed by Greg Kroah-Hartman Jul 14, 2021

mm/z3fold: fix potential memory leak in z3fold_destroy_pool()

[ 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: d30561c5 ("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>

parent 4b515fa9

mm/z3fold.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -839,6 +839,7 @@ 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);
		}