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| author | Yonghong Song <yhs@fb.com> | 2020-07-23 11:41:15 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-07-25 20:16:33 -0700 |
| commit | d3cc2ab546adc6e52b65f36f7c34820d2830d0c9 (patch) | |
| tree | 600669df82d2095897e71afd63df3ffad0df754b /kernel/bpf/map_iter.c | |
| parent | d6c4503cc29638f328e1a6e6fefbdbda401c28fc (diff) | |
| download | linux-d3cc2ab546adc6e52b65f36f7c34820d2830d0c9.tar.gz linux-d3cc2ab546adc6e52b65f36f7c34820d2830d0c9.tar.bz2 linux-d3cc2ab546adc6e52b65f36f7c34820d2830d0c9.zip | |
bpf: Implement bpf iterator for array maps
The bpf iterators for array and percpu array
are implemented. Similar to hash maps, for percpu
array map, bpf program will receive values
from all cpus.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200723184115.590532-1-yhs@fb.com
Diffstat (limited to 'kernel/bpf/map_iter.c')
| -rw-r--r-- | kernel/bpf/map_iter.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/bpf/map_iter.c b/kernel/bpf/map_iter.c index bcb68b55bf65..fbe1f557cb88 100644 --- a/kernel/bpf/map_iter.c +++ b/kernel/bpf/map_iter.c @@ -106,10 +106,12 @@ static int bpf_iter_check_map(struct bpf_prog *prog, bool is_percpu = false; if (map->map_type == BPF_MAP_TYPE_PERCPU_HASH || - map->map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH) + map->map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH || + map->map_type == BPF_MAP_TYPE_PERCPU_ARRAY) is_percpu = true; else if (map->map_type != BPF_MAP_TYPE_HASH && - map->map_type != BPF_MAP_TYPE_LRU_HASH) + map->map_type != BPF_MAP_TYPE_LRU_HASH && + map->map_type != BPF_MAP_TYPE_ARRAY) return -EINVAL; key_acc_size = prog->aux->max_rdonly_access; |