bpf: net: Avoid do_tcp_getsockopt() taking sk lock when called from bpf

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Similar to the earlier commit that changed sk_setsockopt() to
use sockopt_{lock,release}_sock() such that it can avoid taking
lock when called from bpf.  This patch also changes do_tcp_getsockopt()
to use sockopt_{lock,release}_sock() such that a latter patch can
make bpf_getsockopt(SOL_TCP) to reuse do_tcp_getsockopt().

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002821.2889765-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Martin KaFai Lau 2022-09-01 17:28:21 -07:00 • committed by Alexei Starovoitov

parent 34704ef024

commit d51bbff2ab

1 changed files with 9 additions and 9 deletions

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18

net/ipv4/tcp.c

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