mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
ba3b86b9ce
Implement BPF_AND, BPF_OR and BPF_XOR as the existing BPF_ADD. Since the corresponding machine instructions return the old value, BPF_FETCH happens by itself, the only additional thing that is required is zero-extension. There is no single instruction that implements BPF_XCHG on s390, so use a COMPARE AND SWAP loop. BPF_CMPXCHG, on the other hand, can be implemented by a single COMPARE AND SWAP. Zero-extension is automatically inserted by the verifier. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210304233002.149096-1-iii@linux.ibm.com |
||
|---|---|---|
| .. | ||
| bpf_jit_comp.c | ||
| bpf_jit.h | ||
| Makefile | ||
| pnet.c | ||