Doron Roberts-Kedes 977c7114eb strparser: Remove early eaten to fix full tcp receive buffer stall ... On receving an incomplete message, the existing code stores the remaining length of the cloned skb in the early_eaten field instead of incrementing the value returned by __strp_recv. This defers invocation of sock_rfree for the current skb until the next invocation of __strp_recv, which returns early_eaten if early_eaten is non-zero. This behavior causes a stall when the current message occupies the very tail end of a massive skb, and strp_peek/need_bytes indicates that the remainder of the current message has yet to arrive on the socket. The TCP receive buffer is totally full, causing the TCP window to go to zero, so the remainder of the message will never arrive. Incrementing the value returned by __strp_recv by the amount otherwise stored in early_eaten prevents stalls of this nature. Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-06-28 21:37:26 +09:00
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strparser.c	strparser: Remove early eaten to fix full tcp receive buffer stall	2018-06-28 21:37:26 +09:00