IPVS: Add persistence engine data to /proc/net/ip_vs_conn

This shouldn't break compatibility with userspace as the new data
is at the end of the line.

I have confirmed that this doesn't break ipvsadm, the main (only?)
user-space user of this data.

Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Julian Anastasov <ja@ssi.bg>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index b6b309d05e4e..974daf52ba76 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -572,6 +572,7 @@ struct ip_vs_pe {
                          struct ip_vs_conn *ct);
         u32 (*hashkey_raw)(const struct ip_vs_conn_param *p, u32 initval,
                            bool inverse);
+        int (*show_pe_data)(const struct ip_vs_conn *cp, char *buf);
 };
 
 /*