On Mon, Jul 27, 2020 at 12:26 PM Roman Gushchin <guro@xxxxxx> wrote:
>
> Do not use rlimit-based memory accounting for socket storage maps.
> It has been replaced with the memcg-based memory accounting.
>
> Signed-off-by: Roman Gushchin <guro@xxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>
> ---
> net/core/bpf_sk_storage.c | 11 -----------
> 1 file changed, 11 deletions(-)
>
> diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c
> index fbcd03cd00d3..c0a35b6368af 100644
> --- a/net/core/bpf_sk_storage.c
> +++ b/net/core/bpf_sk_storage.c
> @@ -676,8 +676,6 @@ static struct bpf_map *bpf_sk_storage_map_alloc(union bpf_attr *attr)
> struct bpf_sk_storage_map *smap;
> unsigned int i;
> u32 nbuckets;
> - u64 cost;
> - int ret;
>
> smap = kzalloc(sizeof(*smap), GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
> if (!smap)
> @@ -688,18 +686,9 @@ static struct bpf_map *bpf_sk_storage_map_alloc(union bpf_attr *attr)
> /* Use at least 2 buckets, select_bucket() is undefined behavior with 1 bucket */
> nbuckets = max_t(u32, 2, nbuckets);
> smap->bucket_log = ilog2(nbuckets);
> - cost = sizeof(*smap->buckets) * nbuckets + sizeof(*smap);
> -
> - ret = bpf_map_charge_init(&smap->map.memory, cost);
> - if (ret < 0) {
> - kfree(smap);
> - return ERR_PTR(ret);
> - }
> -
> smap->buckets = kvcalloc(sizeof(*smap->buckets), nbuckets,
> GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
> if (!smap->buckets) {
> - bpf_map_charge_finish(&smap->map.memory);
> kfree(smap);
> return ERR_PTR(-ENOMEM);
> }
> --
> 2.26.2
>
