diff options
| author | Viktor Malik <vmalik@redhat.com> | 2026-03-09 14:23:58 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-03-09 19:28:42 +0300 |
| commit | fcec7c66d68165b69b3cef6af913a435a25e36a1 (patch) | |
| tree | 4782826af167dab0c11f8dd9f8ffa600dc5328dc | |
| parent | 20c2e102a2f30e7e47cba9816ab226de296e8e57 (diff) | |
| download | linux-fcec7c66d68165b69b3cef6af913a435a25e36a1.tar.xz | |
selftests/bpf: Move sleepable refcounted_kptr tests to syscalls
Now that sleepable programs are always enabled on syscalls, let
refcounted_kptr tests use syscalls rather than bpf_testmod_test_read,
which is not sleepable with error injection disabled.
The tests just check that the verifier can handle usage of RCU locks in
sleepable programs and never actually attach. So, the attachment target
doesn't matter (as long as it is sleepable) and with syscalls, the tests
pass on kernels with disabled error injection.
Signed-off-by: Viktor Malik <vmalik@redhat.com>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/8b6626eae384559855f7a0e846a16e83f25f06f6.1773055375.git.vmalik@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | tools/testing/selftests/bpf/progs/refcounted_kptr.c | 4 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/progs/refcounted_kptr.c b/tools/testing/selftests/bpf/progs/refcounted_kptr.c index 1aca85d86aeb..c847398837cc 100644 --- a/tools/testing/selftests/bpf/progs/refcounted_kptr.c +++ b/tools/testing/selftests/bpf/progs/refcounted_kptr.c @@ -500,7 +500,7 @@ long rbtree_wrong_owner_remove_fail_a2(void *ctx) return 0; } -SEC("?fentry.s/bpf_testmod_test_read") +SEC("?fentry.s/" SYS_PREFIX "sys_getpgid") __success int BPF_PROG(rbtree_sleepable_rcu, struct file *file, struct kobject *kobj, @@ -534,7 +534,7 @@ err_out: return 0; } -SEC("?fentry.s/bpf_testmod_test_read") +SEC("?fentry.s/" SYS_PREFIX "sys_getpgid") __success int BPF_PROG(rbtree_sleepable_rcu_no_explicit_rcu_lock, struct file *file, struct kobject *kobj, diff --git a/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c b/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c index 836c8ab7b908..b2808bfcec29 100644 --- a/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c +++ b/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c @@ -93,7 +93,7 @@ long rbtree_refcounted_node_ref_escapes_owning_input(void *ctx) return 0; } -SEC("?fentry.s/bpf_testmod_test_read") +SEC("?fentry.s/" SYS_PREFIX "sys_getpgid") __failure __msg("function calls are not allowed while holding a lock") int BPF_PROG(rbtree_fail_sleepable_lock_across_rcu, struct file *file, struct kobject *kobj, |