bpf: add a new kfunc to return current bpf_map elements count

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A bpf_map_sum_elem_count kfunc was added to simplify getting the sum of the map
per-cpu element counters. If a map doesn't implement the counter, then the
function will always return 0.

Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Link: https://lore.kernel.org/r/20230706133932.45883-3-aspsk@isovalent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Anton Protopopov 2023-07-06 13:39:29 +00:00 • committed by Alexei Starovoitov

parent 2595473046

commit 803370d3d3

1 changed files with 38 additions and 1 deletions

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kernel/bpf/map_iter.c

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