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authorEric Dumazet <eric.dumazet@gmail.com>2009-09-23 14:28:33 +0400
committerDavid S. Miller <davem@davemloft.net>2009-09-25 02:39:22 +0400
commita43912ab1925788765208da5cd664b6f8e011d08 (patch)
tree6f522dba1fd414b7da3999fa2da062d80a550874 /include
parentedf42a27e8e242e543716663e54aa2b592ea070a (diff)
downloadlinux-a43912ab1925788765208da5cd664b6f8e011d08.tar.xz
tunnel: eliminate recursion field
It seems recursion field from "struct ip_tunnel" is not anymore needed. recursion prevention is done at the upper level (in dev_queue_xmit()), since we use HARD_TX_LOCK protection for tunnels. This avoids a cache line ping pong on "struct ip_tunnel" : This structure should be now mostly read on xmit and receive paths. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/ipip.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/ipip.h b/include/net/ipip.h
index 5d3036fa1511..76e3ea6e2fe5 100644
--- a/include/net/ipip.h
+++ b/include/net/ipip.h
@@ -12,7 +12,6 @@ struct ip_tunnel
struct ip_tunnel *next;
struct net_device *dev;
- int recursion; /* Depth of hard_start_xmit recursion */
int err_count; /* Number of arrived ICMP errors */
unsigned long err_time; /* Time when the last ICMP error arrived */