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From: James Smart <james.smart@broadcom.com>
To: linux-nvme@lists.infradead.org
Cc: James Smart <james.smart@broadcom.com>
Subject: [PATCH] nvme-fc: fail new connections to a deleted host or remote port
Date: Thu, 17 Sep 2020 13:33:22 -0700	[thread overview]
Message-ID: <20200917203322.57405-1-james.smart@broadcom.com> (raw)


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The lldd may have made calls to delete a remote port or local port and
the delete is in progress when the cli then attempts to create a new
controller. Currently, this proceeds without error although it can't be
very successful.

Fix this by validating that both the host port and remote port are
present when a new controller is to be created.

Signed-off-by: James Smart <james.smart@broadcom.com>
---
 drivers/nvme/host/fc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index bc4e1af587cc..3f9eb37fe779 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -3671,12 +3671,14 @@ nvme_fc_create_ctrl(struct device *dev, struct nvmf_ctrl_options *opts)
 	spin_lock_irqsave(&nvme_fc_lock, flags);
 	list_for_each_entry(lport, &nvme_fc_lport_list, port_list) {
 		if (lport->localport.node_name != laddr.nn ||
-		    lport->localport.port_name != laddr.pn)
+		    lport->localport.port_name != laddr.pn ||
+		    lport->localport.port_state != FC_OBJSTATE_ONLINE)
 			continue;
 
 		list_for_each_entry(rport, &lport->endp_list, endp_list) {
 			if (rport->remoteport.node_name != raddr.nn ||
-			    rport->remoteport.port_name != raddr.pn)
+			    rport->remoteport.port_name != raddr.pn ||
+			    rport->remoteport.port_state != FC_OBJSTATE_ONLINE)
 				continue;
 
 			/* if fail to get reference fall through. Will error */
-- 
2.26.2


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             reply	other threads:[~2020-09-17 20:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-17 20:33 James Smart [this message]
2020-09-18 16:38 ` [PATCH] nvme-fc: fail new connections to a deleted host or remote port Himanshu Madhani
2020-09-21 14:45 ` Christoph Hellwig

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