Re: [PATCH] nbd: Don't use workqueue to handle recv work

[Bart Van Assche]

On 12/20/21 04:22, Xie Yongji wrote:
> The rescuer thread might take over the works queued on
> the workqueue when the worker thread creation timed out.
> If this happens, we have no chance to create multiple
> recv threads which causes I/O hung on this nbd device.
>
> To fix it, this tries to create kthreads directly to
> handle the recv work instead of using workqueue.

Why a kthread instead of only removing the WQ_MEM_RECLAIM flag from the 
alloc_workqueue() call? This should have been explained in the patch 
description. Additionally, a Fixes: tag is missing.

Thanks,

Bart.