diff options
| author | Eric Dumazet | 2011-07-18 05:16:33 +0200 |
|---|---|---|
| committer | David S. Miller | 2011-07-18 19:41:18 +0200 |
| commit | 5c74501f76360ce6f410730b9b5e5976f38e8504 (patch) | |
| tree | 4965fe06affeaa121afa4a18b0644cbeb9e7d639 /drivers/vhost/net.c | |
| parent | net: Add ->neigh_lookup() operation to dst_ops (diff) | |
| download | kernel-qcow2-linux-5c74501f76360ce6f410730b9b5e5976f38e8504.tar.gz kernel-qcow2-linux-5c74501f76360ce6f410730b9b5e5976f38e8504.tar.xz kernel-qcow2-linux-5c74501f76360ce6f410730b9b5e5976f38e8504.zip | |
ipv4: save cpu cycles from check_leaf()
Compiler is not smart enough to avoid double BSWAP instructions in
ntohl(inet_make_mask(plen)).
Lets cache this value in struct leaf_info, (fill a hole on 64bit arches)
With route cache disabled, this saves ~2% of cpu in udpflood bench on
x86_64 machine.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost/net.c')
0 files changed, 0 insertions, 0 deletions