Re: [PATCH 12/22] btrfs: keep track of discardable_bytes

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On Wed, Oct 23, 2019 at 06:53:06PM -0400, Dennis Zhou wrote:
> Keep track of this metric so that we can understand how ahead or behind
> we are in discarding rate.
> 

If these are only going to be exposed via a debug sysfs, then it makes sense to
only track it if we have DEBUG set.  Thanks,

Josef



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