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| author |   Alexei Starovoitov <ast@kernel.org> | 2025-01-06 10:59:50 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2025-01-06 10:59:56 -0800 |
| commit | 859a7db4c7db84b06ca7fc9c60eb45a130c8fbec (patch) | |
| tree | ed16b336308fe7e06470331a87eb492bfd7c9de0 /scripts/generate_rust_analyzer.py | |
| parent | bpf/tests: Add 32 bits only long conditional jump tests (diff) | |
| parent | selftests/bpf: test bpf_for within spin lock section (diff) | |
| download | wireguard-linux-859a7db4c7db84b06ca7fc9c60eb45a130c8fbec.tar.xz wireguard-linux-859a7db4c7db84b06ca7fc9c60eb45a130c8fbec.zip | |
Merge branch 'bpf-allow-bpf_for-bpf_repeat-while-holding-spin'
Emil Tsalapatis says:
====================
In BPF programs, kfunc calls while holding a lock are not allowed
because kfuncs may sleep by default. The exception to this rule are the
functions in special_kfunc_list, which are guaranteed to not sleep. The
bpf_iter_num_* functions used by the bpf_for and bpf_repeat macros make
no function calls themselves, and as such are guaranteed to not sleep.
Add them to special_kfunc_list to allow them within BPF spinlock
critical sections.
Signed-off-by: Emil Tsalapatis (Meta) <emil@etsalapatis.com>
====================
Link: https://patch.msgid.link/20250104202528.882482-1-emil@etsalapatis.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
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