Messages in this thread | | | Date | Fri, 14 Nov 2014 08:19:15 -0500 | From | Tejun Heo <> | Subject | Re: [PATCH v2] virtio_balloon: Convert "vballon" kthread into a workqueue |
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Hello, Michael, Petr.
On Wed, Nov 12, 2014 at 03:32:04PM +0200, Michael S. Tsirkin wrote: > > + /* The workqueue servicing the balloon. */ > > + struct workqueue_struct *wq; > > + struct work_struct wq_work; > > We could use system_freezable_wq instead. > I do agree a dedicated wq is better since this can get blocked > for a long time while allocating memory. > However, please add a comment to this effect.
system_freezable_wq should be fine. Workqueues by default have a pretty high maximum concurrency level (256). There's no reason to create separate workqueues solely for that purpose.
Thanks.
-- tejun
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