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tun: implement flush flag for ndo_xdp_xmit
When passed the XDP_XMIT_FLUSH flag tun_xdp_xmit now performs the same kind of socket wake up as in tun_xdp_flush(). The wake up code from tun_xdp_flush is generalized and shared with tun_xdp_xmit. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Jesper Dangaard Brouer
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Alexei Starovoitov
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Jun 3, 2018
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