Re: [RFC][PATCH 2/7 v2] memcg: fix error code in hugetlb_force_memcg_empty()

[Aneesh Kumar K.V]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/