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| author | Alexei Starovoitov <ast@fb.com> | 2016-08-05 14:01:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-06 20:49:19 -0400 |
| commit | ba0cc3c153590e3d31985b8f8914d205a20b0d7a (patch) | |
| tree | 0bfd00cfd733ae17b33a4203edd57478458e64e6 /samples | |
| parent | a6ed3ea65d9868fdf9eff84e6fe4f666b8d14b02 (diff) | |
| download | lwn-ba0cc3c153590e3d31985b8f8914d205a20b0d7a.tar.gz lwn-ba0cc3c153590e3d31985b8f8914d205a20b0d7a.zip | |
samples/bpf: add bpf_map_update_elem() tests
increase test coverage to check previously missing 'update when full'
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/test_maps.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/samples/bpf/test_maps.c b/samples/bpf/test_maps.c index 47bf0858f9e4..cce2b59751eb 100644 --- a/samples/bpf/test_maps.c +++ b/samples/bpf/test_maps.c @@ -68,7 +68,16 @@ static void test_hashmap_sanity(int i, void *data) assert(bpf_update_elem(map_fd, &key, &value, BPF_NOEXIST) == -1 && errno == E2BIG); + /* update existing element, thought the map is full */ + key = 1; + assert(bpf_update_elem(map_fd, &key, &value, BPF_EXIST) == 0); + key = 2; + assert(bpf_update_elem(map_fd, &key, &value, BPF_ANY) == 0); + key = 1; + assert(bpf_update_elem(map_fd, &key, &value, BPF_ANY) == 0); + /* check that key = 0 doesn't exist */ + key = 0; assert(bpf_delete_elem(map_fd, &key) == -1 && errno == ENOENT); /* iterate over two elements */ @@ -413,10 +422,12 @@ static void do_work(int fn, void *data) for (i = fn; i < MAP_SIZE; i += TASKS) { key = value = i; - if (do_update) + if (do_update) { assert(bpf_update_elem(map_fd, &key, &value, BPF_NOEXIST) == 0); - else + assert(bpf_update_elem(map_fd, &key, &value, BPF_EXIST) == 0); + } else { assert(bpf_delete_elem(map_fd, &key) == 0); + } } } |