From: Christoph Hellwig <hch@lst.de>
To: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
Keith Busch <kbusch@kernel.org>,
linux-nvme@lists.infradead.org
Subject: Re: [PATCH 3/6] nvme-auth: use xarray instead of linked list
Date: Wed, 2 Nov 2022 09:03:19 +0100 [thread overview]
Message-ID: <20221102080319.GB10816@lst.de> (raw)
In-Reply-To: <20221102075224.70869-4-hare@suse.de>
> @@ -907,33 +915,28 @@ EXPORT_SYMBOL_GPL(nvme_auth_negotiate);
> int nvme_auth_wait(struct nvme_ctrl *ctrl, int qid)
> {
> struct nvme_dhchap_queue_context *chap;
> - int ret;
>
> + chap = xa_load(&ctrl->dhchap_auth_xa, qid);
> + if (!chap) {
> + dev_warn(ctrl->device,
> + "qid %d: authentication not initialized!",
> + qid);
> + return -ENOENT;
> }
> + flush_work(&chap->auth_work);
What protects chap from going away after the load, but before use?
next prev parent reply other threads:[~2022-11-02 8:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-02 7:52 [PATCH 0/6] nvme-auth: use xarray and minor fixes Hannes Reinecke
2022-11-02 7:52 ` [PATCH 1/6] nvme-auth: allocate authentication buffer only during transaction Hannes Reinecke
2022-11-03 20:01 ` Sagi Grimberg
2022-11-04 6:49 ` Hannes Reinecke
2022-11-04 6:55 ` Christoph Hellwig
2022-11-02 7:52 ` [PATCH 2/6] nvme-auth: do not queue authentication if the queue is not live Hannes Reinecke
2022-11-03 21:19 ` Sagi Grimberg
2022-11-04 6:54 ` Hannes Reinecke
2022-11-02 7:52 ` [PATCH 3/6] nvme-auth: use xarray instead of linked list Hannes Reinecke
2022-11-02 8:03 ` Christoph Hellwig [this message]
2022-11-02 8:52 ` Hannes Reinecke
2022-11-02 8:54 ` Christoph Hellwig
2022-11-03 21:20 ` Sagi Grimberg
2022-11-04 6:57 ` Hannes Reinecke
2022-11-02 7:52 ` [PATCH 4/6] nvme-auth: return real error instead of NVME_SC_AUTH_REQUIRED Hannes Reinecke
2022-11-02 7:52 ` [PATCH 5/6] nvme-auth: set DNR bit on non-retryable errors Hannes Reinecke
2022-11-02 8:02 ` Christoph Hellwig
2022-11-02 8:40 ` Hannes Reinecke
2022-11-02 7:52 ` [PATCH 6/6] nvme-auth: use a define for chap buffer size Hannes Reinecke
2022-11-03 21:22 ` Sagi Grimberg
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