bpf: Introduce BPF_F_CPU and BPF_F_ALL_CPUS flags

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Introduce BPF_F_CPU and BPF_F_ALL_CPUS flags and check them for
following APIs:

* 'map_lookup_elem()'
* 'map_update_elem()'
* 'generic_map_lookup_batch()'
* 'generic_map_update_batch()'

And, get the correct value size for these APIs.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260107022022.12843-2-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Leon Hwang 2026-01-07 10:20:16 +08:00 • committed by Alexei Starovoitov

parent a8d5067592

commit 2b421662c7

4 changed files with 43 additions and 15 deletions

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23

include/linux/bpf.h

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2

include/uapi/linux/bpf.h

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29

kernel/bpf/syscall.c

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2

tools/include/uapi/linux/bpf.h

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