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Date:	Thu, 27 Sep 2012 17:01:17 +1000
From:	Dave Chinner <>
To:	Zhi Yong Wu <>
	Zhi Yong Wu <>
Subject: Re: [RFC v2 07/10] vfs: fork one kthread to update data temperature

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 <> wrote:
> > On Sun, Sep 23, 2012 at 08:56:32PM +0800, wrote:
> >> From: Zhi Yong Wu <>
> >>
> >>   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


Dave Chinner
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