[PATCH] nvme-tcp: wait socket wmem to drain in queue stop

Chaitanya Kulkarni chaitanyak at nvidia.com
Tue Apr 8 14:00:00 PDT 2025


On 4/4/25 22:48, Michael Liang wrote:
> +static void nvme_tcp_stop_queue_wait(struct nvme_tcp_queue *queue)
> +{
> +	int timeout = 100;
> +

is there a guarantee that above will work for all the setups?
using configurable timeout values helps creating more generic
fix, do we need to consider that here ?

> +	while (timeout > 0) {
> +		if (!sk_wmem_alloc_get(queue->sock->sk))
> +			return;
> +		msleep(2);
> +		timeout -= 2;
> +	}
> +	dev_warn(queue->ctrl->ctrl.device,
> +		 "qid %d: wait draining sock wmem allocation timeout\n",
> +		 nvme_tcp_queue_id(queue));
> +}
> +

-ck




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