diff options
| author | Eric Dumazet <edumazet@google.com> | 2012-06-20 09:02:19 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-23 08:47:33 +0400 |
| commit | 7586eceb0abc0ea1c2b023e3e5d4dfd4ff40930a (patch) | |
| tree | 79fc35a3afa23896ab3e6e00b4d9d1178bfee1df /include/net | |
| parent | 24ea818e305b92ad1fadcca015ae3b0c1222c497 (diff) | |
| download | linux-7586eceb0abc0ea1c2b023e3e5d4dfd4ff40930a.tar.xz | |
ipv4: tcp: dont cache output dst for syncookies
Don't cache output dst for syncookies, as this adds pressure on IP route
cache and rcu subsystem for no gain.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/flow.h | 1 | ||||
| -rw-r--r-- | include/net/inet_connection_sock.h | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/net/flow.h b/include/net/flow.h index 6c469dbdb917..bd524f598561 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -22,6 +22,7 @@ struct flowi_common { #define FLOWI_FLAG_ANYSRC 0x01 #define FLOWI_FLAG_PRECOW_METRICS 0x02 #define FLOWI_FLAG_CAN_SLEEP 0x04 +#define FLOWI_FLAG_RT_NOCACHE 0x08 __u32 flowic_secid; }; diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index e1b7734c456f..af3c743a40e4 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -251,7 +251,8 @@ extern int inet_csk_get_port(struct sock *sk, unsigned short snum); extern struct dst_entry* inet_csk_route_req(struct sock *sk, struct flowi4 *fl4, - const struct request_sock *req); + const struct request_sock *req, + bool nocache); extern struct dst_entry* inet_csk_route_child_sock(struct sock *sk, struct sock *newsk, const struct request_sock *req); |