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From: Daniel Wagner <dwagner@suse.de>
To: linux-nvme@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Sagi Grimberg <sagi@grimberg.me>, Keith Busch <kbusch@kernel.org>,
	James Smart <james.smart@broadcom.com>,
	Hannes Reinecke <hare@suse.de>, Daniel Wagner <dwagner@suse.de>
Subject: [PATCH v3 12/16] nvmet-fc: do not tack refs on tgtports from assoc
Date: Mon, 18 Dec 2023 16:31:00 +0100	[thread overview]
Message-ID: <20231218153105.12717-13-dwagner@suse.de> (raw)
In-Reply-To: <20231218153105.12717-1-dwagner@suse.de>

The association life time is tight to the life time of the target port.
That means we do not take extra a refcount when creating a association.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
 drivers/nvme/target/fc.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index c243085d6f42..47cecc8c72b2 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -1109,12 +1109,9 @@ nvmet_fc_alloc_target_assoc(struct nvmet_fc_tgtport *tgtport, void *hosthandle)
 	if (idx < 0)
 		goto out_free_assoc;
 
-	if (!nvmet_fc_tgtport_get(tgtport))
-		goto out_ida;
-
 	assoc->hostport = nvmet_fc_alloc_hostport(tgtport, hosthandle);
 	if (IS_ERR(assoc->hostport))
-		goto out_put;
+		goto out_ida;
 
 	assoc->tgtport = tgtport;
 	assoc->a_id = idx;
@@ -1144,8 +1141,6 @@ nvmet_fc_alloc_target_assoc(struct nvmet_fc_tgtport *tgtport, void *hosthandle)
 
 	return assoc;
 
-out_put:
-	nvmet_fc_tgtport_put(tgtport);
 out_ida:
 	ida_free(&tgtport->assoc_cnt, idx);
 out_free_assoc:
@@ -1182,7 +1177,6 @@ nvmet_fc_target_assoc_free(struct kref *ref)
 	dev_info(tgtport->dev,
 		"{%d:%d} Association freed\n",
 		tgtport->fc_target_port.port_num, assoc->a_id);
-	nvmet_fc_tgtport_put(tgtport);
 	kfree(assoc);
 }
 
-- 
2.43.0



  parent reply	other threads:[~2023-12-18 16:00 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-18 15:30 [PATCH v3 00/17] enable nvmet-fc for blktests Daniel Wagner
2023-12-18 15:30 ` [PATCH v3 01/16] nvmet: report ioccsz and iorcsz for disc ctrl Daniel Wagner
2023-12-19  4:27   ` Christoph Hellwig
2023-12-20  0:50     ` Max Gurtovoy
2023-12-19  7:24   ` Hannes Reinecke
2023-12-19 15:15     ` Daniel Wagner
2023-12-18 15:30 ` [PATCH v3 02/16] nvmet-fc: remove unnecessary bracket Daniel Wagner
2023-12-19  4:27   ` Christoph Hellwig
2023-12-19  7:25   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 03/16] nvmet-trace: avoid dereferencing pointer too early Daniel Wagner
2023-12-19  4:29   ` Christoph Hellwig
2023-12-18 15:30 ` [PATCH v3 04/16] nvmet-trace: null terminate device name string correctly Daniel Wagner
2023-12-19  4:29   ` Christoph Hellwig
2023-12-18 15:30 ` [PATCH v3 05/16] nvmet-fcloop: Remove remote port from list when unlinking Daniel Wagner
2023-12-19  4:31   ` Christoph Hellwig
2023-12-19  7:26   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 06/16] nvme-fc: Do not wait in vain when unloading module Daniel Wagner
2023-12-19  4:35   ` Christoph Hellwig
2024-01-05  5:05     ` Keith Busch
2023-12-19  7:28   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 07/16] nvmet-fc: Release reference on target port Daniel Wagner
2023-12-19  4:36   ` Christoph Hellwig
2023-12-19  7:28   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 08/16] nvmet-fc: untangle cross refcounting objects Daniel Wagner
2023-12-19  5:16   ` Christoph Hellwig
2023-12-21  9:15     ` Daniel Wagner
2024-01-26 15:32       ` Daniel Wagner
2023-12-19  7:59   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 09/16] nvmet-fc: free queue and assoc directly Daniel Wagner
2023-12-19  7:59   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 10/16] nvmet-fc: hold reference on hostport match Daniel Wagner
2023-12-19  8:00   ` Hannes Reinecke
2023-12-18 15:30 ` [PATCH v3 11/16] nvmet-fc: remove null hostport pointer check Daniel Wagner
2023-12-19 11:37   ` Hannes Reinecke
2023-12-18 15:31 ` Daniel Wagner [this message]
2023-12-19 11:38   ` [PATCH v3 12/16] nvmet-fc: do not tack refs on tgtports from assoc Hannes Reinecke
2023-12-18 15:31 ` [PATCH v3 13/16] nvmet-fc: abort command if when there is binding Daniel Wagner
2023-12-19 11:39   ` Hannes Reinecke
2023-12-18 15:31 ` [PATCH v3 14/16] nvmet-fc: free hostport after release reference to tgtport Daniel Wagner
2023-12-19 11:41   ` Hannes Reinecke
2023-12-18 15:31 ` [PATCH v3 15/16] nvmet-fc: avoid deadlock on delete association path Daniel Wagner
2023-12-19  6:00   ` kernel test robot
2023-12-19  8:29   ` kernel test robot
2023-12-19 11:17   ` kernel test robot
2023-12-19 11:43   ` Hannes Reinecke
2023-12-18 15:31 ` [PATCH v3 16/16] nvmet-fc: take ref count on tgtport before delete assoc Daniel Wagner
2023-12-19 11:47   ` Hannes Reinecke
2023-12-18 15:31 ` [PATCH v3 17/17] nvmet-fc: add extensive debug logging Daniel Wagner
2023-12-19 11:54   ` Hannes Reinecke
2023-12-19 14:06     ` Daniel Wagner
2023-12-18 16:10 ` [PATCH v3 00/17] enable nvmet-fc for blktests Maurizio Lombardi
2024-01-02 21:36 ` Keith Busch

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