Re: Re: [PATCH 12/19] bcache: update bucket_in_use periodically

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From: Tang Junhui <tang.junhui@xxxxxxxxxx>

Hello Eric

> > 
> > From my personal opinion, updating bucket_in_use is for acting garbage
> > collection. If number of bucket in use is not updated in time, garbage
> > collection won't start due to old bucket_in_use still beyond
> > CUTOFF_WRITEBACK_SYNC.
> > 
> > We may maintain an atomic counter per-cache set for dirty buckets, and
> > update it at some locations when allocating or reclaiming bucket. This
> > counter is unnecessary to be very accurate, just accurate enough for
> > should_writeback() working correctly.
> > 
> > I am also looking at it for a better solution as well.
> 
> Hi Coli & Tang,
> 
> Have either of you had a chance to come up with a solution to this?

This patch is updated by 
[PATCH] [PATCH V2] bcache: update bucket_in_use in real time
and it has been applied to Mike's tree. 

Regards,

Tang


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