ipvs: fix timer in get_curr_sync_buff

 	Fix get_curr_sync_buff to keep buffer for 2 seconds
as intended, not just for the current jiffie. By this way
we will sync more connection structures with single packet.

Signed-off-by: Tinggong Wang <wangtinggong@gmail.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index d1b7298..fecf24d 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -374,8 +374,8 @@ get_curr_sync_buff(struct netns_ipvs *ipvs, unsigned long time)
        struct ip_vs_sync_buff *sb;
 
        spin_lock_bh(&ipvs->sync_buff_lock);
-       if (ipvs->sync_buff && (time == 0 ||
-           time_before(jiffies - ipvs->sync_buff->firstuse, time))) {
+       if (ipvs->sync_buff &&
+           time_after_eq(jiffies - ipvs->sync_buff->firstuse, time)) {
                sb = ipvs->sync_buff;
                ipvs->sync_buff = NULL;
        } else