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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2011-01-20 03:48:19 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-01-20 16:59:32 -0800 |
| commit | a2da570d62fcb9e8816f6920e1ec02c706b289fa (patch) | |
| tree | 9a24b76262c40ec2f1be11e29e224c7d7b20fa26 /include/net/gen_stats.h | |
| parent | net_sched: move TCQ_F_THROTTLED flag (diff) | |
| download | linux-dev-a2da570d62fcb9e8816f6920e1ec02c706b289fa.tar.xz linux-dev-a2da570d62fcb9e8816f6920e1ec02c706b289fa.zip | |
net_sched: RCU conversion of stab
This patch converts stab qdisc management to RCU, so that we can perform
the qdisc_calculate_pkt_len() call before getting qdisc lock.
This shortens the lock's held time in __dev_xmit_skb().
This permits more qdiscs to get TCQ_F_CAN_BYPASS status, avoiding lot of
cache misses and so reducing latencies.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Patrick McHardy <kaber@trash.net>
CC: Jesper Dangaard Brouer <hawk@diku.dk>
CC: Jarek Poplawski <jarkao2@gmail.com>
CC: Jamal Hadi Salim <hadi@cyberus.ca>
CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/gen_stats.h')
0 files changed, 0 insertions, 0 deletions