[sheepdog] [PATCH] sheep: reinitialize conn->blocking_siblings after delete it

[Yunkai Zhang]

From: Yunkai Zhang <qiushu.zyk at taobao.com>

We use list_empty() to check whether conn->blocking_siblings has joined into
sys->blocking_conn_list, so it needs to be re-initialized after delete it from
blocking_conn_list.

Use list_del_init() instead of list_del() can achieve this purpose.

Signed-off-by: Yunkai Zhang <qiushu.zyk at taobao.com>
---
 sheep/sdnet.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sheep/sdnet.c b/sheep/sdnet.c
index 85ac02f..7c96d52 100644
--- a/sheep/sdnet.c
+++ b/sheep/sdnet.c
@@ -615,7 +615,7 @@ again:
 			list_for_each_entry_safe(conn, n, &sys->blocking_conn_list,
 						 blocking_siblings) {
 				dprintf("rx on %p\n", conn);
-				list_del(&conn->blocking_siblings);
+				list_del_init(&conn->blocking_siblings);
 				conn_rx_on(conn);
 			}
 		}
@@ -736,7 +736,7 @@ static void client_handler(int fd, int events, void *data)
 
 	if (is_conn_dead(&ci->conn)) {
 		if (!list_empty(&ci->conn.blocking_siblings))
-			list_del(&ci->conn.blocking_siblings);
+			list_del_init(&ci->conn.blocking_siblings);
 err:
 		dprintf("closed connection %d, %s:%d\n", fd,
 			ci->conn.ipstr, ci->conn.port);
-- 
1.7.10.2