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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2009-10-19 19:18:49 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-10-29 01:42:55 -0700 |
| commit | fb699dfd426a189fe33b91586c15176a75c8aed0 (patch) | |
| tree | c90a8aadc10ac9a9e7b67b2d36ce61853917e3ba /lib/dma-debug.c | |
| parent | atm: Cleanup redundant tests on unsigned (diff) | |
| download | linux-dev-fb699dfd426a189fe33b91586c15176a75c8aed0.tar.xz linux-dev-fb699dfd426a189fe33b91586c15176a75c8aed0.zip | |
net: Introduce dev_get_by_index_rcu()
Some workloads hit dev_base_lock rwlock pretty hard.
We can use RCU lookups to avoid touching this rwlock.
netdevices are already freed after a RCU grace period, so this patch
adds no penalty at device dismantle time.
dev_ifname() converted to dev_get_by_index_rcu()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/dma-debug.c')
0 files changed, 0 insertions, 0 deletions