Re: [RFC v2 07/10] vfs: fork one kthread to update data temperature

[Dave Chinner]

On Thu, Sep 27, 2012 at 02:54:22PM +0800, Zhi Yong Wu wrote:
> On Thu, Sep 27, 2012 at 12:03 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
> > On Sun, Sep 23, 2012 at 08:56:32PM +0800, zwu.kernel@xxxxxxxxx wrote:
> >> From: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
> >>
> >>   Fork and run one kernel kthread to calculate
> >> that temperature based on some metrics kept
> >> in custom frequency data structs, and store
> >> the info in the hash table.
> >
> > No new kthreads, please. Use a per-superblock workqueue and a struct
> > delayed_work to run periodic work on each superblock.
> If no new kthread is created, which kthread will work on these
> delayed_work tasks?

One of the kworker threads that service the workqueue
infrastructure.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx
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