Merge branch 'linaro-android-3.10-lsk' of git://git.linaro.org/people/jstultz/android...

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e15d330919af97e51c2b3fdb8bbadad9bda6a6d5..aa5f3bfebabd0360b01d1beb857f234af598f092 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -98,6 +98,7 @@ int sysctl_tcp_thin_dupack __read_mostly;
 
 int sysctl_tcp_moderate_rcvbuf __read_mostly = 1;
 int sysctl_tcp_early_retrans __read_mostly = 3;
+int sysctl_tcp_default_init_rwnd __read_mostly = TCP_DEFAULT_INIT_RCVWND;
 
 #define FLAG_DATA              0x01 /* Incoming frame contained data.          */
 #define FLAG_WIN_UPDATE                0x02 /* Incoming ACK was a window update.       */
@@ -351,14 +352,14 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
 static void tcp_fixup_rcvbuf(struct sock *sk)
 {
        u32 mss = tcp_sk(sk)->advmss;
-       u32 icwnd = TCP_DEFAULT_INIT_RCVWND;
+       u32 icwnd = sysctl_tcp_default_init_rwnd;
        int rcvmem;
 
        /* Limit to 10 segments if mss <= 1460,
         * or 14600/mss segments, with a minimum of two segments.
         */
        if (mss > 1460)
-               icwnd = max_t(u32, (1460 * TCP_DEFAULT_INIT_RCVWND) / mss, 2);
+               icwnd = max_t(u32, (1460 * icwnd) / mss, 2);
 
        rcvmem = SKB_TRUESIZE(mss + MAX_TCP_HEADER);
        while (tcp_win_from_space(rcvmem) < mss)