Re: Re: [PATCH] bcache: add a separate open bucket list for flash devices

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From: Tang Junhui <tang.junhui@xxxxxxxxxx>

Hello Coly, Kent

> Correct me if I am wrong. I guess the reason why you care about flash
> only volume is because ceph users use flash only volume to store some
> metadata only on SSD ?

Yes, we store ceph metadata in flash only volume and object data in 
cached device. The buckets reclaimer performs badly, buckets often 
be exhaustion.

> If that's the goal the way to do it would be to segregate the write points, not
> the open buckets.
This patch is simple and effective, but I will try the method of segregating
the write points, and send a patch V2 later.        

Thanks,
Tang


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