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| author | Ross Zwisler <zwisler@google.com> | 2023-03-13 14:56:28 -0600 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-03-13 21:51:30 -0700 |
| commit | ab4c15feb2ebcf9f4abe31457d7cbc8f3de9c2ab (patch) | |
| tree | d66282c6c7ff3afb5242d46dfb45925ec17d206f /tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c | |
| parent | 27d7fdf06fdb84455ff585b58c8034e2fab42583 (diff) | |
| download | linux-ab4c15feb2ebcf9f4abe31457d7cbc8f3de9c2ab.tar.gz linux-ab4c15feb2ebcf9f4abe31457d7cbc8f3de9c2ab.tar.bz2 linux-ab4c15feb2ebcf9f4abe31457d7cbc8f3de9c2ab.zip | |
selftests/bpf: use canonical ftrace path
The canonical location for the tracefs filesystem is at
/sys/kernel/tracing.
But, from Documentation/trace/ftrace.rst:
Before 4.1, all ftrace tracing control files were within the debugfs
file system, which is typically located at /sys/kernel/debug/tracing.
For backward compatibility, when mounting the debugfs file system,
the tracefs file system will be automatically mounted at:
/sys/kernel/debug/tracing
Many tests in the bpf selftest code still refer to this older debugfs
path, so let's update them to avoid confusion.
Signed-off-by: Ross Zwisler <zwisler@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230313205628.1058720-3-zwisler@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c index 113dba349a57..22be0a9a5a0a 100644 --- a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c +++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c @@ -338,7 +338,12 @@ static int get_syms(char ***symsp, size_t *cntp, bool kernel) * Filtering out duplicates by using hashmap__add, which won't * add existing entry. */ - f = fopen("/sys/kernel/debug/tracing/available_filter_functions", "r"); + + if (access("/sys/kernel/tracing/trace", F_OK) == 0) + f = fopen("/sys/kernel/tracing/available_filter_functions", "r"); + else + f = fopen("/sys/kernel/debug/tracing/available_filter_functions", "r"); + if (!f) return -EINVAL; |