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docs: bpf: map_array: Specify BPF_MAP_TYPE_PERCPU_ARRAY value size limit
authorAlex Tran <alex.t.tran@gmail.com>
Sat, 15 Nov 2025 06:35:31 +0000 (22:35 -0800)
committerAndrii Nakryiko <andrii@kernel.org>
Tue, 25 Nov 2025 22:32:00 +0000 (14:32 -0800)
commit44bf4611827b7477db188ec932b827e1fabd3ee1
tree43e6839a1e5d303c51f7568a6548cc5616cb4c2ftree | snapshot
parent590699d85823f38b74d52a0811ef22ebb61afddccommit | diff
docs: bpf: map_array: Specify BPF_MAP_TYPE_PERCPU_ARRAY value size limit

Specify value size limit for BPF_MAP_TYPE_PERCPU_ARRAY which
is PCPU_MIN_UNIT_SIZE (32 kb). In percpu allocator (mm: percpu),
any request with a size greater than PCPU_MIN_UNIT_SIZE is rejected.

Signed-off-by: Alex Tran <alex.t.tran@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20251115063531.2302903-1-alex.t.tran@gmail.com
Documentation/bpf/map_array.rst diff | blob | blame | history
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