From: Yucong Sun <sunyucong@xxxxxxxxx>
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@xxxxxxxxx>
---
tools/testing/selftests/bpf/progs/fexit_sleep.c | 4 ++--
1 file 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++;
--
2.30.2
