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| author |   Daniel Borkmann <daniel@iogearbox.net> | 2016-06-28 12:18:25 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-06-30 05:54:40 -0400 |
| commit | 6816a7ffce32e999601825ddfd887f36d3052932 (patch) | |
| tree | 99a35abec2ab665d9cd72ae8f143b544d5eef923 /include/uapi | |
| parent | bpf, trace: fetch current cpu only once (diff) | |
| download | linux-dev-6816a7ffce32e999601825ddfd887f36d3052932.tar.xz linux-dev-6816a7ffce32e999601825ddfd887f36d3052932.zip | |
bpf, trace: add BPF_F_CURRENT_CPU flag for bpf_perf_event_read
Follow-up commit to 1e33759c788c ("bpf, trace: add BPF_F_CURRENT_CPU
flag for bpf_perf_event_output") to add the same functionality into
bpf_perf_event_read() helper. The split of index into flags and index
component is also safe here, since such large maps are rejected during
map allocation time.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/bpf.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index 406459b935a2..58df2da3e9bf 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -347,7 +347,7 @@ enum bpf_func_id { #define BPF_F_ZERO_CSUM_TX (1ULL << 1) #define BPF_F_DONT_FRAGMENT (1ULL << 2) -/* BPF_FUNC_perf_event_output flags. */ +/* BPF_FUNC_perf_event_output and BPF_FUNC_perf_event_read flags. */ #define BPF_F_INDEX_MASK 0xffffffffULL #define BPF_F_CURRENT_CPU BPF_F_INDEX_MASK |