mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-01 14:44:12 +00:00
Code Issues Releases Wiki Activity

selftests/bpf: Fix pid check in fexit_sleep test

Browse source 
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
This commit is contained in:
Yucong Sun 2021-10-06 11:56:17 -07:00 committed by Andrii Nakryiko
parent 0f4feacc91
commit 5db02dd7f0
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
tools/testing/selftests/bpf/progs/fexit_sleep.c
View file

@ -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++;