Re: [PATCH] Btrfs-progs: add dedup subcommand

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Martin Steigerwald <Martin@xxxxxxxxxxxx> schrieb:

>> - btrfs dedup disable
>> Delete the dedup tree, after this we're not able to use dedup any more
>> unless you enable it again.
> 
> So if deduplication has been switched on for a while, btrfs dedup disable
> will cause BTRFS to undo the deduplication (and thus require more space
> for the same amount of data)?

>From my intention I would guess it just looses track of what the content is 
in "content based storage" - so when re-enabling it will have to "learn" 
from beginning. It should not unshare data as sharing extents is a feature 
of btrfs disting from the function of online dedup itself.

At least that would sound reasonable to me.

Regards,
Kai

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