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| author | David S. Miller <davem@davemloft.net> | 2020-09-23 02:45:34 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-23 02:45:34 +0300 |
| commit | 3ab0a7a0c349a1d7beb2bb371a62669d1528269d (patch) | |
| tree | d2ae17c3bfc829ce0c747ad97021cd4bc8fb11dc /tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c | |
| parent | 92ec804f3dbf0d986f8e10850bfff14f316d7aaf (diff) | |
| parent | 805c6d3c19210c90c109107d189744e960eae025 (diff) | |
| download | linux-3ab0a7a0c349a1d7beb2bb371a62669d1528269d.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Two minor conflicts:
1) net/ipv4/route.c, adding a new local variable while
moving another local variable and removing it's
initial assignment.
2) drivers/net/dsa/microchip/ksz9477.c, overlapping changes.
One pretty prints the port mode differently, whilst another
changes the driver to try and obtain the port mode from
the port node rather than the switch node.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c index 07ddbfdbcab7..6dfce3fd68bc 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c @@ -47,7 +47,10 @@ int dump_bpf_hash_map(struct bpf_iter__bpf_map_elem *ctx) __u32 seq_num = ctx->meta->seq_num; struct bpf_map *map = ctx->map; struct key_t *key = ctx->key; + struct key_t tmp_key; __u64 *val = ctx->value; + __u64 tmp_val = 0; + int ret; if (in_test_mode) { /* test mode is used by selftests to @@ -61,6 +64,18 @@ int dump_bpf_hash_map(struct bpf_iter__bpf_map_elem *ctx) if (key == (void *)0 || val == (void *)0) return 0; + /* update the value and then delete the <key, value> pair. + * it should not impact the existing 'val' which is still + * accessible under rcu. + */ + __builtin_memcpy(&tmp_key, key, sizeof(struct key_t)); + ret = bpf_map_update_elem(&hashmap1, &tmp_key, &tmp_val, 0); + if (ret) + return 0; + ret = bpf_map_delete_elem(&hashmap1, &tmp_key); + if (ret) + return 0; + key_sum_a += key->a; key_sum_b += key->b; key_sum_c += key->c; |