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Commit 618ec9a7 authored by Alexei Starovoitov's avatar Alexei Starovoitov Committed by David S. Miller
Browse files

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: default avatarAlexei Starovoitov <ast@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 557c0c6e

samples/bpf/bpf_load.c

+4 −1
Original line number Original line Diff line number Diff line
@@ -158,8 +158,11 @@ static int load_maps(struct bpf_map_def *maps, int len) 
					   maps[i].key_size,

					   maps[i].key_size,

					   maps[i].value_size,

					   maps[i].value_size,

					   maps[i].max_entries);

					   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;

			return 1;

		}





		if (maps[i].type == BPF_MAP_TYPE_PROG_ARRAY)

		if (maps[i].type == BPF_MAP_TYPE_PROG_ARRAY)

			prog_array_fd = map_fd[i];

			prog_array_fd = map_fd[i];