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author | Stefan Agner <stefan.agner@toradex.com> | 2019-04-25 18:17:44 +0200 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2019-04-25 18:17:44 +0200 |
commit | 9d9ea7dde2646ba8e36037e2679f2d98080df36b (patch) | |
tree | fdcbb9a89f3b97e14242524449bf98faba4d4e34 /tools/bpf/bpftool/map.c | |
parent | 6b8816d9e21df6b1d543c49428eba01b00e4ea1c (diff) | |
parent | c0ad257a19f48c56f2ee2e623a78251aa8664279 (diff) |
Merge tag 'v4.20.17' into toradex_4.20.y
This is the 4.20.17 stable release
Diffstat (limited to 'tools/bpf/bpftool/map.c')
-rw-r--r-- | tools/bpf/bpftool/map.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c index 9988d5c126b6..94094168c4a6 100644 --- a/tools/bpf/bpftool/map.c +++ b/tools/bpf/bpftool/map.c @@ -439,6 +439,20 @@ static char **parse_bytes(char **argv, const char *name, unsigned char *val, return argv + i; } +/* on per cpu maps we must copy the provided value on all value instances */ +static void fill_per_cpu_value(struct bpf_map_info *info, void *value) +{ + unsigned int i, n, step; + + if (!map_is_per_cpu(info->type)) + return; + + n = get_possible_cpus(); + step = round_up(info->value_size, 8); + for (i = 1; i < n; i++) + memcpy(value + i * step, value, info->value_size); +} + static int parse_elem(char **argv, struct bpf_map_info *info, void *key, void *value, __u32 key_size, __u32 value_size, __u32 *flags, __u32 **value_fd) @@ -518,6 +532,8 @@ static int parse_elem(char **argv, struct bpf_map_info *info, argv = parse_bytes(argv, "value", value, value_size); if (!argv) return -1; + + fill_per_cpu_value(info, value); } return parse_elem(argv, info, key, NULL, key_size, value_size, |