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| author | Eric Dumazet <[email protected]> | 2012-07-29 21:06:13 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2012-07-30 21:53:21 +0000 |
| commit | cca32e4bf999a34ac08d959f351f2b30bcd02460 (patch) | |
| tree | 7456e3d00b57ab353bb726219cec83b8b4d101ab /net/ipv4/tcp_ipv4.c | |
| parent | tun: Fix formatting. (diff) | |
| download | kernel-cca32e4bf999a34ac08d959f351f2b30bcd02460.tar.gz kernel-cca32e4bf999a34ac08d959f351f2b30bcd02460.zip | |
net: TCP early demux cleanup
early_demux() handlers should be called in RCU context, and as we
use skb_dst_set_noref(skb, dst), caller must not exit from RCU context
before dst use (skb_dst(skb)) or release (skb_drop(dst))
Therefore, rcu_read_lock()/rcu_read_unlock() pairs around
->early_demux() are confusing and not needed :
Protocol handlers are already in an RCU read lock section.
(__netif_receive_skb() does the rcu_read_lock() )
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
0 files changed, 0 insertions, 0 deletions