+struct sk_out {
+ unsigned int refs; /* frees sk_out when it drops to zero.
+ * protected by below ->lock */
+
+ int sk; /* socket fd to talk to client */
+ struct fio_sem lock; /* protects ref and below list */
+ struct flist_head list; /* list of pending transmit work */
+ struct fio_sem wait; /* wake backend when items added to list */
+ struct fio_sem xmit; /* held while sending data */
+};
+