diff options
| -rw-r--r-- | net/ipv4/tcp_input.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 457697a..69d8c38 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1248,6 +1248,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ int cached_fack_count; int i; int first_sack_index; + int force_one_sack; if (!tp->sacked_out) { if (WARN_ON(tp->fackets_out)) @@ -1272,18 +1273,18 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ * if the only SACK change is the increase of the end_seq of * the first block then only apply that SACK block * and use retrans queue hinting otherwise slowpath */ - flag = 1; + force_one_sack = 1; for (i = 0; i < num_sacks; i++) { __be32 start_seq = sp[i].start_seq; __be32 end_seq = sp[i].end_seq; if (i == 0) { if (tp->recv_sack_cache[i].start_seq != start_seq) - flag = 0; + force_one_sack = 0; } else { if ((tp->recv_sack_cache[i].start_seq != start_seq) || (tp->recv_sack_cache[i].end_seq != end_seq)) - flag = 0; + force_one_sack = 0; } tp->recv_sack_cache[i].start_seq = start_seq; tp->recv_sack_cache[i].end_seq = end_seq; @@ -1295,7 +1296,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ } first_sack_index = 0; - if (flag) + if (force_one_sack) num_sacks = 1; else { int j; @@ -1321,9 +1322,6 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ } } - /* clear flag as used for different purpose in following code */ - flag = 0; - /* Use SACK fastpath hint if valid */ cached_skb = tp->fastpath_skb_hint; cached_fack_count = tp->fastpath_cnt_hint; |