bpf: cpumap micro-optimization in cpu_map_enqueue

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Discovered that the compiler laid-out asm code in suboptimal way
when studying perf report during benchmarking of cpumap. Help
the compiler by the marking unlikely code paths.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jesper Dangaard Brouer 2017-11-01 12:44:45 +01:00 • committed by David S. Miller

parent 14e83bf829

commit 03c4cc385f

1 changed files with 2 additions and 2 deletions

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kernel/bpf/cpumap.c

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