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authorRoman Gushchin <guro@fb.com>2020-12-01 13:58:52 -0800
committerAlexei Starovoitov <ast@kernel.org>2020-12-02 18:32:47 -0800
commitdb54330d3e137c23bea26784cecf5ae17e72e4c6 (patch)
tree25987b0a9ccd3f9ca1929c174f69e3d47bb32622
parenta37fb7ef24a475012547fa28f0148d2e538ad5d4 (diff)
bpf: Eliminate rlimit-based memory accounting for reuseport_array maps
Do not use rlimit-based memory accounting for reuseport_array maps. It has been replaced with the memcg-based memory accounting. Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20201201215900.3569844-27-guro@fb.com
-rw-r--r--kernel/bpf/reuseport_array.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/kernel/bpf/reuseport_array.c b/kernel/bpf/reuseport_array.c
index a55cd542f2ce..4838922f723d 100644
--- a/kernel/bpf/reuseport_array.c
+++ b/kernel/bpf/reuseport_array.c
@@ -150,9 +150,8 @@ static void reuseport_array_free(struct bpf_map *map)
static struct bpf_map *reuseport_array_alloc(union bpf_attr *attr)
{
- int err, numa_node = bpf_map_attr_numa_node(attr);
+ int numa_node = bpf_map_attr_numa_node(attr);
struct reuseport_array *array;
- struct bpf_map_memory mem;
u64 array_size;
if (!bpf_capable())
@@ -161,20 +160,13 @@ static struct bpf_map *reuseport_array_alloc(union bpf_attr *attr)
array_size = sizeof(*array);
array_size += (u64)attr->max_entries * sizeof(struct sock *);
- err = bpf_map_charge_init(&mem, array_size);
- if (err)
- return ERR_PTR(err);
-
/* allocate all map elements and zero-initialize them */
array = bpf_map_area_alloc(array_size, numa_node);
- if (!array) {
- bpf_map_charge_finish(&mem);
+ if (!array)
return ERR_PTR(-ENOMEM);
- }
/* copy mandatory map attributes */
bpf_map_init_from_attr(&array->map, attr);
- bpf_map_charge_move(&array->map.memory, &mem);
return &array->map;
}