KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> writes:
> EBUSY should be returned.
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> ---
> mm/hugetlb.c | 5 ++++-
> 1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index 17ae2e4..4dd6b39 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -1922,8 +1922,11 @@ int hugetlb_force_memcg_empty(struct cgroup *cgroup)
> int ret = 0, idx = 0;
>
> do {
> - if (cgroup_task_count(cgroup) || !list_empty(&cgroup->children))
> + if (cgroup_task_count(cgroup)
> + || !list_empty(&cgroup->children)) {
> + ret = -EBUSY;
> goto out;
> + }
> /*
> * If the task doing the cgroup_rmdir got a signal
> * we don't really need to loop till the hugetlb resource
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
-aneesh
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