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(parent: cc0dff6) | patch
trace_helpers.c: Add helpers to poll multiple perf FDs for events
authorToke Høiland-Jørgensen <toke@toke.dk>
Mon, 25 Jun 2018 12:25:02 +0000 (14:25 +0200)
committerDaniel Borkmann <daniel@iogearbox.net>
Wed, 27 Jun 2018 09:01:03 +0000 (11:01 +0200)
commit22adedd304668f0a2001284ddf225b49e9c05c64
tree9b3c268ffc6eedfe91fb434c304f8b932ca46888tree | snapshot
parentcc0dff6dc3b44e33cd6b935893db66563ef15ba0commit | diff
trace_helpers.c: Add helpers to poll multiple perf FDs for events

Add two new helper functions to trace_helpers that supports polling
multiple perf file descriptors for events. These are used to the XDP
perf_event_output example, which needs to work with one perf fd per CPU.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
tools/testing/selftests/bpf/trace_helpers.c diff | blob | history
tools/testing/selftests/bpf/trace_helpers.h diff | blob | history
Domain: System / Kernel;