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From: Daniel Wagner <wagi@kernel.org>
To: James Smart <james.smart@broadcom.com>,
	Christoph Hellwig <hch@lst.de>,  Sagi Grimberg <sagi@grimberg.me>,
	Chaitanya Kulkarni <kch@nvidia.com>
Cc: Hannes Reinecke <hare@suse.de>, Keith Busch <kbusch@kernel.org>,
	 linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
	 Daniel Wagner <wagi@kernel.org>
Subject: [PATCH v6 10/14] nvmet-fcloop: don't wait for lport cleanup
Date: Wed, 07 May 2025 14:23:06 +0200	[thread overview]
Message-ID: <20250507-nvmet-fcloop-v6-10-ca02e16fb018@kernel.org> (raw)
In-Reply-To: <20250507-nvmet-fcloop-v6-0-ca02e16fb018@kernel.org>

The lifetime of the fcloop_lsreq is not tight to the lifetime of the
host or target port, thus there is no need anymore to synchronize the
cleanup path anymore.

Signed-off-by: Daniel Wagner <wagi@kernel.org>
---
 drivers/nvme/target/fcloop.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c
index f999bd6513c19b19af64e0ea547db26b627aab69..fc10d380c17e77ed35706ddd7690e6f6a8d268c6 100644
--- a/drivers/nvme/target/fcloop.c
+++ b/drivers/nvme/target/fcloop.c
@@ -207,7 +207,6 @@ static LIST_HEAD(fcloop_nports);
 struct fcloop_lport {
 	struct nvme_fc_local_port *localport;
 	struct list_head lport_list;
-	struct completion unreg_done;
 	refcount_t ref;
 };
 
@@ -1083,9 +1082,6 @@ fcloop_localport_delete(struct nvme_fc_local_port *localport)
 	struct fcloop_lport_priv *lport_priv = localport->private;
 	struct fcloop_lport *lport = lport_priv->lport;
 
-	/* release any threads waiting for the unreg to complete */
-	complete(&lport->unreg_done);
-
 	fcloop_lport_put(lport);
 }
 
@@ -1234,18 +1230,9 @@ fcloop_create_local_port(struct device *dev, struct device_attribute *attr,
 }
 
 static int
-__wait_localport_unreg(struct fcloop_lport *lport)
+__localport_unreg(struct fcloop_lport *lport)
 {
-	int ret;
-
-	init_completion(&lport->unreg_done);
-
-	ret = nvme_fc_unregister_localport(lport->localport);
-
-	if (!ret)
-		wait_for_completion(&lport->unreg_done);
-
-	return ret;
+	return nvme_fc_unregister_localport(lport->localport);
 }
 
 static struct fcloop_nport *
@@ -1328,7 +1315,7 @@ fcloop_delete_local_port(struct device *dev, struct device_attribute *attr,
 	if (!lport)
 		return -ENOENT;
 
-	ret = __wait_localport_unreg(lport);
+	ret = __localport_unreg(lport);
 	fcloop_lport_put(lport);
 
 	return ret ? ret : count;
@@ -1772,7 +1759,7 @@ static void __exit fcloop_exit(void)
 
 		spin_unlock_irqrestore(&fcloop_lock, flags);
 
-		ret = __wait_localport_unreg(lport);
+		ret = __localport_unreg(lport);
 		if (ret)
 			pr_warn("%s: Failed deleting local port\n", __func__);
 

-- 
2.49.0



  parent reply	other threads:[~2025-05-07 12:23 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-07 12:22 [PATCH v6 00/14] nvmet-fcloop: track resources via reference counting Daniel Wagner
2025-05-07 12:22 ` [PATCH v6 01/14] nvmet-fcloop: track ref counts for nports Daniel Wagner
2025-05-07 13:50   ` Hannes Reinecke
2025-05-08 10:06     ` Daniel Wagner
2025-05-07 12:22 ` [PATCH v6 02/14] nvmet-fcloop: remove nport from list on last user Daniel Wagner
2025-05-07 12:22 ` [PATCH v6 03/14] nvmet-fcloop: refactor fcloop_nport_alloc and track lport Daniel Wagner
2025-05-07 12:23 ` [PATCH v6 04/14] nvmet-fcloop: refactor fcloop_delete_local_port Daniel Wagner
2025-05-07 12:23 ` [PATCH v6 05/14] nvmet-fcloop: update refs on tfcp_req Daniel Wagner
2025-05-07 12:23 ` [PATCH v6 06/14] nvmet-fcloop: add missing fcloop_callback_host_done Daniel Wagner
2025-05-07 13:51   ` Hannes Reinecke
2025-05-07 12:23 ` [PATCH v6 07/14] nvmet-fcloop: access fcpreq only when holding reqlock Daniel Wagner
2025-05-07 13:52   ` Hannes Reinecke
2025-05-07 12:23 ` [PATCH v6 08/14] nvmet-fcloop: prevent double port deletion Daniel Wagner
2025-05-07 13:59   ` Hannes Reinecke
2025-05-07 12:23 ` [PATCH v6 09/14] nvmet-fcloop: allocate/free fcloop_lsreq directly Daniel Wagner
2025-05-07 12:23 ` Daniel Wagner [this message]
2025-05-07 13:59   ` [PATCH v6 10/14] nvmet-fcloop: don't wait for lport cleanup Hannes Reinecke
2025-05-07 12:23 ` [PATCH v6 11/14] nvmet-fcloop: drop response if targetport is gone Daniel Wagner
2025-05-07 12:23 ` [PATCH v6 12/14] nvmet-fc: free pending reqs on tgtport unregister Daniel Wagner
2025-05-07 12:23 ` [PATCH v6 13/14] nvmet-fc: take tgtport refs for portentry Daniel Wagner
2025-05-07 12:23 ` [PATCH v6 14/14] nvme-fc: do not reference lsrsp after failure Daniel Wagner
2025-05-07 14:00   ` Hannes Reinecke
2025-05-12 14:16 ` [PATCH v6 00/14] nvmet-fcloop: track resources via reference counting Christoph Hellwig

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