Commit 5db02dd7 authored by Yucong Sun's avatar Yucong Sun Committed by Andrii Nakryiko
Browse files

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: default avatarYucong Sun <sunyucong@gmail.com>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211006185619.364369-13-fallentree@fb.com
parent 0f4feacc

tools/testing/selftests/bpf/progs/fexit_sleep.c

+2 −2
Original line number Diff line number Diff line
@@ -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++;