diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-01-17 19:13:28 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-01-18 22:54:25 +0100 |
| commit | 52775b33bb5072fbc07b02c0cf4fe8da1f7ee7cd (patch) | |
| tree | 86ead032dc8cbdf4488b9719b9ef41e25e8bb189 /kernel/bpf/syscall.c | |
| parent | 7a0ef6939548b9eb74bf464daf55ad68a23602a2 (diff) | |
| download | linux-52775b33bb5072fbc07b02c0cf4fe8da1f7ee7cd.tar.bz2 | |
bpf: offload: report device information about offloaded maps
Tell user space about device on which the map was created.
Unfortunate reality of user ABI makes sharing this code
with program offload difficult but the information is the
same.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 97a825ffc763..5bdb0cc84ad2 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1801,6 +1801,12 @@ static int bpf_map_get_info_by_fd(struct bpf_map *map, info.map_flags = map->map_flags; memcpy(info.name, map->name, sizeof(map->name)); + if (bpf_map_is_dev_bound(map)) { + err = bpf_map_offload_info_fill(&info, map); + if (err) + return err; + } + if (copy_to_user(uinfo, &info, info_len) || put_user(info_len, &uattr->info.info_len)) return -EFAULT; |