Function report |
Source Code:kernel\bpf\local_storage.c |
Create Date:2022-07-28 13:14:12 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:bpf_percpu_cgroup_storage_update
Proto:int bpf_percpu_cgroup_storage_update(struct bpf_map *_map, void *_key, void *value, u64 map_flags)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct bpf_map * | _map | |
void * | _key | |
void * | value | |
u64 | map_flags |
203 | map = map_to_storage(_map) |
206 | off = 0 |
209 | If map_flags != create new element or update existing && map_flags != update existing element Then Return -EINVAL |
213 | storage = cgroup_storage_lookup(map, key, false) |
214 | If Not storage Then |
216 | Return -ENOENT |
226 | for_each_possible_cpu(cpu) |
227 | bpf_long_memcpy(per_cpu_ptr(percpu_buf, cpu), value + off, size) |
232 | Return 0 |
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