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| author | Alexei Starovoitov <ast@fb.com> | 2016-03-08 06:57:18 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-08 21:28:32 +0100 |
| commit | 618ec9a7b1fda46f8dd4a630ded983aeb51218f3 (patch) | |
| tree | ffdc7512a4aa08cd313c2143a509ff3d6678d671 /samples/bpf | |
| parent | bpf: convert stackmap to pre-allocation (diff) | |
| download | linux-618ec9a7b1fda46f8dd4a630ded983aeb51218f3.tar.xz linux-618ec9a7b1fda46f8dd4a630ded983aeb51218f3.zip | |
samples/bpf: make map creation more verbose
map creation is typically the first one to fail when rlimits are
too low, not enough memory, etc
Make this failure scenario more verbose
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf')
| -rw-r--r-- | samples/bpf/bpf_load.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c index da86a8e0a95a..816bca5760a0 100644 --- a/samples/bpf/bpf_load.c +++ b/samples/bpf/bpf_load.c @@ -158,8 +158,11 @@ static int load_maps(struct bpf_map_def *maps, int len) maps[i].key_size, maps[i].value_size, maps[i].max_entries); - if (map_fd[i] < 0) + if (map_fd[i] < 0) { + printf("failed to create a map: %d %s\n", + errno, strerror(errno)); return 1; + } if (maps[i].type == BPF_MAP_TYPE_PROG_ARRAY) prog_array_fd = map_fd[i]; |