From f46b22aa6a284773328d91071a2b33ec7db1f9d1 Mon Sep 17 00:00:00 2001
From: Amir Shehata <ashehata@whamcloud.com>
Date: Wed, 4 Dec 2019 12:19:05 -0800
Subject: [PATCH] LU-13049 lnet: peer lookup handle shutdown

When LNet is shutting down, looking up peer_nis shouldn't assert
but return NULL. Callers handle NULL return

Test-Parameters: trivial
Signed-off-by: Amir Shehata <ashehata@whamcloud.com>
Change-Id: Ia658f527719a71b2d0bed144ae03582eff54fcf9
Reviewed-on: https://review.whamcloud.com/36925
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Reviewed-by: Neil Brown <neilb@suse.de>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---
 lnet/lnet/peer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lnet/lnet/peer.c b/lnet/lnet/peer.c
index b3e911b..1a0601f 100644
--- a/lnet/lnet/peer.c
+++ b/lnet/lnet/peer.c
@@ -653,7 +653,8 @@ lnet_get_peer_ni_locked(struct lnet_peer_table *ptable, lnet_nid_t nid)
 	struct list_head	*peers;
 	struct lnet_peer_ni	*lp;
 
-	LASSERT(the_lnet.ln_state == LNET_STATE_RUNNING);
+	if (the_lnet.ln_state != LNET_STATE_RUNNING)
+		return NULL;
 
 	peers = &ptable->pt_hash[lnet_nid2peerhash(nid)];
 	list_for_each_entry(lp, peers, lpni_hashlist) {
-- 
1.8.3.1