From: John L. Hammond <john.hammond@intel.com>
Date: Wed, 14 Mar 2018 17:12:06 +0000 (-0500)
Subject: LU-10819 o2ib: use splice in kiblnd_peer_connect_failed()
X-Git-Tag: 2.11.51~37
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=f3824b978efe810f4cca42e75f09b5a9860178c5;p=fs%2Flustre-release.git

LU-10819 o2ib: use splice in kiblnd_peer_connect_failed()

In kiblnd_peer_connect_failed() replace a backwards list_add() and
list_del() with list_splice_init().

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: Ib00d5d911d1070b6c8b49f14a2c7fc3552da553c
Reviewed-on: https://review.whamcloud.com/31643
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Doug Oucharek <dougso@me.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lnet/klnds/o2iblnd/o2iblnd_cb.c b/lnet/klnds/o2iblnd/o2iblnd_cb.c
index cf753dd..cd22264 100644
--- a/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -2168,8 +2168,7 @@ kiblnd_peer_connect_failed(kib_peer_ni_t *peer_ni, int active, int error)
 	peer_ni->ibp_reconnected = 0;
 	if (list_empty(&peer_ni->ibp_conns)) {
 		/* Take peer_ni's blocked transmits to complete with error */
-		list_add(&zombies, &peer_ni->ibp_tx_queue);
-		list_del_init(&peer_ni->ibp_tx_queue);
+		list_splice_init(&peer_ni->ibp_tx_queue, &zombies);
 
 		if (kiblnd_peer_active(peer_ni))
 			kiblnd_unlink_peer_locked(peer_ni);