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xsk: Add busy-poll support for {recv,send}msg()
authorBjörn Töpel <bjorn.topel@intel.com>
Mon, 30 Nov 2020 18:52:00 +0000 (19:52 +0100)
committerDaniel Borkmann <daniel@iogearbox.net>
Mon, 30 Nov 2020 23:09:25 +0000 (00:09 +0100)
commita0731952d9cddc9c11a8352922f449e6ab2f7537
tree80e5e8b06dab104630cf0152b919ca9c08ba8d7f
parente392081837283fbe5df1837fd85012ae5bfae098
xsk: Add busy-poll support for {recv,send}msg()

Wire-up XDP socket busy-poll support for recvmsg() and sendmsg(). If
the XDP socket prefers busy-polling, make sure that no wakeup/IPI is
performed.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20201130185205.196029-6-bjorn.topel@gmail.com
net/xdp/xsk.c