[PATCH bpf v2 0/2] bpf: fix recursive lock and add test

From: Jiayuan Chen
Date: Sat Nov 09 2024 - 10:05:04 EST


1. fix recursive lock when ebpf prog return SK_PASS.
2. add selftest to reproduce recursive lock.

Note that if just the selftest merged without first
patch, the test case will definitely fail, because the
issue of deadlock is inevitable.

---
v1->v2: 1.inspired by martin.lau to add selftest to reproduce the issue.
2. follow the community rules for patch.
v1: https://lore.kernel.org/bpf/55fc6114-7e64-4b65-86d2-92cfd1e9e92f@xxxxxxxxx/T/#u
---

Jiayuan Chen (2):
bpf: fix recursive lock when verdict program return SK_PASS
selftests/bpf: Add some tests with sockmap SK_PASS

net/core/skmsg.c | 4 +-
.../selftests/bpf/prog_tests/sockmap_basic.c | 53 +++++++++++++++++++
.../bpf/progs/test_sockmap_pass_prog.c | 2 +-
3 files changed, 56 insertions(+), 3 deletions(-)

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2.43.5