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socket: queue immediate PDUs at front of outqueue

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Signed-off-by: Peter Lieven <pl@kamp.de>
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Peter Lieven
2015-03-26 16:51:18 +01:00
parent b76c8a703e
commit 2a57cea180
1 changed files with 8 additions and 0 deletions
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lib/socket.c
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@@ -92,9 +92,17 @@ iscsi_add_to_outqueue(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
/* queue pdus in ascending order of CmdSN. /* queue pdus in ascending order of CmdSN.
* ensure that pakets with the same CmdSN are kept in FIFO order. * ensure that pakets with the same CmdSN are kept in FIFO order.
* immediate PDUs are queued in front of queue with the CmdSN
* of the first element in the outqueue.
*/ */
if (pdu->outdata.data[0] & ISCSI_PDU_IMMEDIATE) {
pdu->cmdsn = current->cmdsn;
}
do { do {
if (iscsi_serial32_compare(pdu->cmdsn, current->cmdsn) < 0 || if (iscsi_serial32_compare(pdu->cmdsn, current->cmdsn) < 0 ||
(pdu->outdata.data[0] & ISCSI_PDU_IMMEDIATE && !(current->outdata.data[0] & ISCSI_PDU_IMMEDIATE)) ||
pdu->flags & ISCSI_PDU_URGENT_DELIVERY) { pdu->flags & ISCSI_PDU_URGENT_DELIVERY) {
/* insert PDU before the current */ /* insert PDU before the current */
if (last != NULL) { if (last != NULL) {