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authorEric Dumazet <edumazet@google.com>2012-06-20 05:02:19 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-22 21:47:33 -0700
commit7586eceb0abc0ea1c2b023e3e5d4dfd4ff40930a (patch)
tree79fc35a3afa23896ab3e6e00b4d9d1178bfee1df /include/net/flow.h
parentbnx2x: link module eeprom (diff)
downloadlinux-dev-7586eceb0abc0ea1c2b023e3e5d4dfd4ff40930a.tar.xz
linux-dev-7586eceb0abc0ea1c2b023e3e5d4dfd4ff40930a.zip
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/flow.h')
-rw-r--r--include/net/flow.h1
1 files changed, 1 insertions, 0 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;
};