提交 b1afde60 编写于 作者: N Nandita Dukkipati 提交者: David S. Miller

tcp: Bug fix in initialization of receive window.

The bug has to do with boundary checks on the initial receive window.
If the initial receive window falls between init_cwnd and the
receive window specified by the user, the initial window is incorrectly
brought down to init_cwnd. The correct behavior is to allow it to
remain unchanged.
Signed-off-by: NNandita Dukkipati <nanditad@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 ce9aeb58
......@@ -231,11 +231,10 @@ void tcp_select_initial_window(int __space, __u32 mss,
/* when initializing use the value from init_rcv_wnd
* rather than the default from above
*/
if (init_rcv_wnd &&
(*rcv_wnd > init_rcv_wnd * mss))
*rcv_wnd = init_rcv_wnd * mss;
else if (*rcv_wnd > init_cwnd * mss)
*rcv_wnd = init_cwnd * mss;
if (init_rcv_wnd)
*rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
else
*rcv_wnd = min(*rcv_wnd, init_cwnd * mss);
}
/* Set the clamp no higher than max representable value */
......
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