[PATCH bpf v3 0/2] bpf: Avoid RCU context warning when unpinning htab with internal structs

KaFai Wan
2025-10-08T10:26:55Z

This small patchset is about avoid RCU context warning when unpinning
htab with internal structs (timer, workqueue, or task_work).

v3:
- fix nit (Yonghong Song)
- add Acked-by: Yonghong Song <yonghong.song@linux.dev>

v2:
- rename bpf_free_inode() to bpf_destroy_inode() (Andrii)
https://lore.kernel.org/all/20251007012235.755853-1-kafai.wan@linux.dev/

v1:
https://lore.kernel.org/all/20251003084528.502518-1-kafai.wan@linux.dev/

---
KaFai Wan (2):
bpf: Avoid RCU context warning when unpinning htab with internal
structs
selftests/bpf: Add test for unpinning htab with internal timer struct

kernel/bpf/inode.c | 4 +--
.../selftests/bpf/prog_tests/pinning_htab.c | 36 +++++++++++++++++++
.../selftests/bpf/progs/test_pinning_htab.c | 25 +++++++++++++
3 files changed, 63 insertions(+), 2 deletions(-)
create mode 100644 tools/testing/selftests/bpf/prog_tests/pinning_htab.c
create mode 100644 tools/testing/selftests/bpf/progs/test_pinning_htab.c

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2.43.0