Re: [PATCH v13] vhost: Reintroduces support of kthread API and adds mode selection
From: Markus Elfring <hidden>
Date: 2025-07-15 18:43:52
Also in:
lkml, virtualization
This patch reintroduces kthread mode for vhost workers and provides configuration to select between kthread and task worker.
… Is there a need to reconsider the relevance once more for the presented cover letter? …
quoted hunk ↗ jump to hunk
+++ b/drivers/vhost/vhost.c
…
+static int vhost_attach_task_to_cgroups(struct vhost_worker *worker)
+{…
+ vhost_worker_queue(worker, &attach.work); + + mutex_lock(&worker->mutex);
…
+ worker->attachment_cnt = saved_cnt; + + mutex_unlock(&worker->mutex);
… Under which circumstances would you become interested to apply a statement like “guard(mutex)(&worker->mutex);”? https://elixir.bootlin.com/linux/v6.16-rc6/source/include/linux/mutex.h#L225 Regards, Markus