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| author | Yucong Sun <sunyucong@gmail.com> | 2021-10-06 11:56:17 -0700 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2021-10-08 15:17:00 -0700 |
| commit | 5db02dd7f09fdc32fa3866386784d383aca191d8 (patch) | |
| tree | d4c646c5b0499e3f0009b859fa4d26db4fb08e76 /tools/testing/selftests/bpf | |
| parent | 0f4feacc9155776fd2c7f1c7bcb41001d94990a0 (diff) | |
| download | linux-5db02dd7f09fdc32fa3866386784d383aca191d8.tar.gz linux-5db02dd7f09fdc32fa3866386784d383aca191d8.tar.bz2 linux-5db02dd7f09fdc32fa3866386784d383aca191d8.zip | |
selftests/bpf: Fix pid check in fexit_sleep test
bpf_get_current_pid_tgid() returns u64, whose upper 32 bits are the same
as userspace getpid() return value.
Signed-off-by: Yucong Sun <sunyucong@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211006185619.364369-13-fallentree@fb.com
Diffstat (limited to 'tools/testing/selftests/bpf')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/fexit_sleep.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/progs/fexit_sleep.c b/tools/testing/selftests/bpf/progs/fexit_sleep.c index 03a672d76353..bca92c9bd29a 100644 --- a/tools/testing/selftests/bpf/progs/fexit_sleep.c +++ b/tools/testing/selftests/bpf/progs/fexit_sleep.c @@ -13,7 +13,7 @@ int fexit_cnt = 0; SEC("fentry/__x64_sys_nanosleep") int BPF_PROG(nanosleep_fentry, const struct pt_regs *regs) { - if ((int)bpf_get_current_pid_tgid() != pid) + if (bpf_get_current_pid_tgid() >> 32 != pid) return 0; fentry_cnt++; @@ -23,7 +23,7 @@ int BPF_PROG(nanosleep_fentry, const struct pt_regs *regs) SEC("fexit/__x64_sys_nanosleep") int BPF_PROG(nanosleep_fexit, const struct pt_regs *regs, int ret) { - if ((int)bpf_get_current_pid_tgid() != pid) + if (bpf_get_current_pid_tgid() >> 32 != pid) return 0; fexit_cnt++; |