Re: [PATCH 06/13] writeback: bdi write bandwidth estimation

[Peter Zijlstra]

On Wed, 2010-11-24 at 21:20 +0800, Wu Fengguang wrote:
> >         (jiffies - bdi->write_bandwidth_update_time < elapsed)
> 
> this will be true if someone else has _done_ overlapped estimation,
> otherwise it will equal:
> 
>         jiffies - bdi->write_bandwidth_update_time == elapsed
> 
> Sorry the comment needs updating. 

Right, but its racy as hell..
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