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Date: Thu, 30 Jul 2020 14:23:01 -0700 From: Roman Gushchin <guro@...com> To: <bpf@...r.kernel.org> CC: <netdev@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, <kernel-team@...com>, <linux-kernel@...r.kernel.org>, Roman Gushchin <guro@...com>, Song Liu <songliubraving@...com> Subject: [PATCH bpf-next v3 20/29] bpf: eliminate rlimit-based memory accounting for queue_stack_maps maps Do not use rlimit-based memory accounting for queue_stack maps. It has been replaced with the memcg-based memory accounting. Signed-off-by: Roman Gushchin <guro@...com> Acked-by: Song Liu <songliubraving@...com> --- kernel/bpf/queue_stack_maps.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/kernel/bpf/queue_stack_maps.c b/kernel/bpf/queue_stack_maps.c index 44184f82916a..92e73c35a34a 100644 --- a/kernel/bpf/queue_stack_maps.c +++ b/kernel/bpf/queue_stack_maps.c @@ -66,29 +66,21 @@ static int queue_stack_map_alloc_check(union bpf_attr *attr) static struct bpf_map *queue_stack_map_alloc(union bpf_attr *attr) { - int ret, numa_node = bpf_map_attr_numa_node(attr); - struct bpf_map_memory mem = {0}; + int numa_node = bpf_map_attr_numa_node(attr); struct bpf_queue_stack *qs; - u64 size, queue_size, cost; + u64 size, queue_size; size = (u64) attr->max_entries + 1; - cost = queue_size = sizeof(*qs) + size * attr->value_size; - - ret = bpf_map_charge_init(&mem, cost); - if (ret < 0) - return ERR_PTR(ret); + queue_size = sizeof(*qs) + size * attr->value_size; qs = bpf_map_area_alloc(queue_size, numa_node); - if (!qs) { - bpf_map_charge_finish(&mem); + if (!qs) return ERR_PTR(-ENOMEM); - } memset(qs, 0, sizeof(*qs)); bpf_map_init_from_attr(&qs->map, attr); - bpf_map_charge_move(&qs->map.memory, &mem); qs->size = size; raw_spin_lock_init(&qs->lock); -- 2.26.2
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