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

BugLink: https://bugs.launchpad.net/bugs/1938199

[ Upstream commit dac0d1cfda ]

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: d30561c56f ("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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Miaohe Lin 2021-06-30 18:50:36 -07:00 committed by Stefan Bader
parent 879bb16f4c
commit a8ce1a7061
1 changed files with 1 additions and 0 deletions

1
mm/z3fold.c
View File

@ -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);
}