1. fix recursive lock when ebpf prog return SK_PASS.
2. add selftest to reproduce recursive lock.
Note that the test code can reproduce the 'dead-lock' and if just
the selftest merged without first patch, the test case will
definitely fail, because the issue of deadlock is inevitable.
---
v2->v4: fix line length reported by patchwork and remove unused code.
(max_line_length is set to 80 in patchwork but default is 100 in kernel
tree)
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/55fc6114-7e64-4b65-86d2-92cfd1e9e...@linux.dev/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 | 54 +++++++++++++++++++
2 files changed, 56 insertions(+), 2 deletions(-)
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2.43.5
