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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-15 04:12:55 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-11-16 17:30:06 -0500 |
| commit | 588f033075d8c7efe28695402114eab3f9da47c4 (patch) | |
| tree | e057253b48041762ca0d747374521e5edf51c644 /drivers/net/veth.c | |
| parent | enable virtio_net to return bus_info in ethtool -i consistent with emulated NICs (diff) | |
| download | linux-dev-588f033075d8c7efe28695402114eab3f9da47c4.tar.xz linux-dev-588f033075d8c7efe28695402114eab3f9da47c4.zip | |
net: use jump_label for netstamp_needed
netstamp_needed seems a good candidate to jump_label conversion.
This avoids 3 conditional branches per incoming packet in fast path.
No measurable difference, given that these conditional branches are
predicted on modern cpus. Only a small icache reduction, thanks to the
unlikely() stuff.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/veth.c')
0 files changed, 0 insertions, 0 deletions