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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2009-10-30 07:11:27 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-11-01 23:55:08 -0800 |
| commit | 72c9528bab94cc052d00ce241b8e85f5d71e45f0 (patch) | |
| tree | fcec7a40e0242e659474a4d9f501d9213225aa55 /.mailmap | |
| parent | NET:KS8695: add API for get rx interrupt bit (diff) | |
| download | linux-dev-72c9528bab94cc052d00ce241b8e85f5d71e45f0.tar.xz linux-dev-72c9528bab94cc052d00ce241b8e85f5d71e45f0.zip | |
net: Introduce dev_get_by_name_rcu()
Some workloads hit dev_base_lock rwlock pretty hard.
We can use RCU lookups to avoid touching this rwlock
(and avoid touching netdevice refcount)
netdevices are already freed after a RCU grace period, so this patch
adds no penalty at device dismantle time.
However, it adds a synchronize_rcu() call in dev_change_name()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '.mailmap')
0 files changed, 0 insertions, 0 deletions