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9552f90835
Support adjusting/reading delayed ack max for socket level by using set/getsockopt(). This option aligns with TCP_BPF_DELACK_MAX usage. Considering that bpf option was implemented before this patch, so we need to use a standalone new option for pure tcp set/getsockopt() use. Add WRITE_ONCE/READ_ONCE() to prevent data-race if setsockopt() happens to write one value to icsk_delack_max while icsk_delack_max is being read. Signed-off-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250317120314.41404-3-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>