bpf: Call maybe_wait_bpf_programs() only once from generic_map_delete_batch()

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As stated in the comment found in maybe_wait_bpf_programs(),
the synchronize_rcu() barrier is only needed before returning
to userspace, not after each deletion in the batch.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20220218181801.2971275-1-eric.dumazet@gmail.com

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Eric Dumazet 2022-02-18 10:18:01 -08:00 • committed by Daniel Borkmann

parent 086d49058c

commit 9087c6ff8d

1 changed files with 2 additions and 1 deletions

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kernel/bpf/syscall.c

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