linux-kernel - Re: [PATCH] nvme/pci: make PRP list DMA pools per-NUMA-node

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Message-ID: <ba40abc8-8b41-4e2c-a700-04e8e424bcc3@samsung.com>
Date: Mon, 21 Apr 2025 12:39:34 +0530
From: Kanchan Joshi <joshi.k@...sung.com>
To: Caleb Sander Mateos <csander@...estorage.com>, Keith Busch
	<kbusch@...nel.org>, Jens Axboe <axboe@...nel.dk>, Christoph Hellwig
	<hch@....de>, Sagi Grimberg <sagi@...mberg.me>
Cc: linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nvme/pci: make PRP list DMA pools per-NUMA-node

On 4/20/2025 10:14 PM, Caleb Sander Mateos wrote:
>   static int nvme_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
>   			  unsigned int hctx_idx)

Missing this handling for admin queue.

We may go to that case (i.e., admin command with data payload > 1 
segment) less often. But when we do, this code will give 
null-pointer-deference.