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| author | Eric Dumazet <[email protected]> | 2015-10-08 18:16:48 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2015-10-11 12:33:15 +0000 |
| commit | 6bcfd7f8c28887a4298bc4386b02cb90c9fa0c13 (patch) | |
| tree | 34a3fa802965d1c97f5c242b79436bb648fa13c9 /net/ipv4/tcp_timer.c | |
| parent | Merge branch 'dsa-next' (diff) | |
| download | kernel-6bcfd7f8c28887a4298bc4386b02cb90c9fa0c13.tar.gz kernel-6bcfd7f8c28887a4298bc4386b02cb90c9fa0c13.zip | |
tcp: fix RFS vs lockless listeners
Before recent TCP listener patches, we were updating listener
sk->sk_rxhash before the cloning of master socket.
children sk_rxhash was therefore correct after the normal 3WHS.
But with lockless listener, we no longer dirty/change listener sk_rxhash
as it would be racy.
We need to correctly update the child sk_rxhash, otherwise first data
packet wont hit correct cpu if RFS is used.
Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: Willem de Bruijn <[email protected]>
Cc: Tom Herbert <[email protected]>
Acked-by: Tom Herbert <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
0 files changed, 0 insertions, 0 deletions