git: df3747c6607b - main - Replace STAILQ_SWAP() with simpler STAILQ_CONCAT().
Alexander Motin
mav at FreeBSD.org
Tue Mar 2 23:48:54 UTC 2021
The branch main has been updated by mav:
URL: https://cgit.FreeBSD.org/src/commit/?id=df3747c6607be12d48db825653e6adfc3041e97f
commit df3747c6607be12d48db825653e6adfc3041e97f
Author: Alexander Motin <mav at FreeBSD.org>
AuthorDate: 2021-03-02 23:39:44 +0000
Commit: Alexander Motin <mav at FreeBSD.org>
CommitDate: 2021-03-02 23:48:49 +0000
Replace STAILQ_SWAP() with simpler STAILQ_CONCAT().
Also remove stray STAILQ_REMOVE_AFTER(), not causing problems only
because STAILQ_SWAP() fixed corrupted stqh_last.
MFC after: 1 week
---
sys/dev/iscsi/icl_soft.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/sys/dev/iscsi/icl_soft.c b/sys/dev/iscsi/icl_soft.c
index c64f0cfde71b..d579c034e63f 100644
--- a/sys/dev/iscsi/icl_soft.c
+++ b/sys/dev/iscsi/icl_soft.c
@@ -933,7 +933,6 @@ icl_conn_send_pdus(struct icl_conn *ic, struct icl_pdu_stailq *queue)
request2->ip_bhs_mbuf = NULL;
request->ip_bhs_mbuf->m_pkthdr.len += size2;
size += size2;
- STAILQ_REMOVE_AFTER(queue, request, ip_next);
icl_soft_pdu_done(request2, 0);
}
#if 0
@@ -972,13 +971,11 @@ icl_send_thread(void *arg)
for (;;) {
for (;;) {
/*
- * If the local queue is empty, populate it from
- * the main one. This way the icl_conn_send_pdus()
- * can go through all the queued PDUs without holding
- * any locks.
+ * Populate the local queue from the main one.
+ * This way the icl_conn_send_pdus() can go through
+ * all the queued PDUs without holding any locks.
*/
- if (STAILQ_EMPTY(&queue))
- STAILQ_SWAP(&ic->ic_to_send, &queue, icl_pdu);
+ STAILQ_CONCAT(&queue, &ic->ic_to_send);
ic->ic_check_send_space = false;
ICL_CONN_UNLOCK(ic);
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