public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Daniel Wagner <dwagner@suse.de>
To: James Smart <james.smart@broadcom.com>
Cc: Keith Busch <kbusch@kernel.org>, Christoph Hellwig <hch@lst.de>,
	Hannes Reinecke <hare@suse.de>,
	linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
	Daniel Wagner <dwagner@suse.de>
Subject: [PATCH v4 08/12] nvmet-fc: do not tack refs on tgtports from assoc
Date: Tue, 30 Jan 2024 10:49:34 +0100	[thread overview]
Message-ID: <20240130094938.1575-9-dwagner@suse.de> (raw)
In-Reply-To: <20240130094938.1575-1-dwagner@suse.de>

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

Reviewed-by: Hannes Reinecke <hare@suse.de>
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 849d9b17c60a..fe3246024836 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -1107,12 +1107,9 @@ 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;
@@ -1142,8 +1139,6 @@ 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:
@@ -1180,7 +1175,6 @@ 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:[~2024-01-30  9:49 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-30  9:49 [PATCH v4 00/12] enable nvmet-fc for blktests Daniel Wagner
2024-01-30  9:49 ` [PATCH v4 01/12] nvme-fc: do not wait in vain when unloading module Daniel Wagner
2024-01-30  9:49 ` [PATCH v4 02/12] nvmet-fcloop: swap the list_add_tail arguments Daniel Wagner
2024-01-31  6:26   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 03/12] nvmet-fc: release reference on target port Daniel Wagner
2024-01-31  6:26   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 04/12] nvmet-fc: defer cleanup using RCU properly Daniel Wagner
2024-01-31  6:26   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 05/12] nvmet-fc: free queue and assoc directly Daniel Wagner
2024-01-31  6:27   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 06/12] nvmet-fc: hold reference on hostport match Daniel Wagner
2024-01-31  6:27   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 07/12] nvmet-fc: remove null hostport pointer check Daniel Wagner
2024-01-31  6:27   ` Christoph Hellwig
2024-01-30  9:49 ` Daniel Wagner [this message]
2024-01-31  6:28   ` [PATCH v4 08/12] nvmet-fc: do not tack refs on tgtports from assoc Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 09/12] nvmet-fc: abort command when there is no binding Daniel Wagner
2024-01-31  6:28   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 10/12] nvmet-fc: avoid deadlock on delete association path Daniel Wagner
2024-01-31  6:28   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 11/12] nvmet-fc: take ref count on tgtport before delete assoc Daniel Wagner
2024-01-31  6:28   ` Christoph Hellwig
2024-01-30  9:49 ` [PATCH v4 12/12] nvmet-fc: use RCU list iterator for assoc_list Daniel Wagner
2024-01-31  6:29   ` Christoph Hellwig

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240130094938.1575-9-dwagner@suse.de \
    --to=dwagner@suse.de \
    --cc=hare@suse.de \
    --cc=hch@lst.de \
    --cc=james.smart@broadcom.com \
    --cc=kbusch@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-nvme@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox