Re: Detaching a caching device

[Rolf Fokkens <rolf-6w2rdlBuEQTpMFipWq+H6g@public.gmane.org>]

Yep, works indeed.

Dispite the alarming description :-)

Suggestion for alternative text:  "Detaches all caching devices and 
closes them; if any data is present in the caching devices it will ..."

On 09/15/2013 05:42 PM, Rolf Fokkens wrote:
> On 09/15/2013 05:20 PM, Gabriel de Perthuis wrote:
>> Cache sets have an 'unregister' action: 
>> /sys/fs/bcache/<uuid>/unregister The reference docs are in 
>> bcache.txt. 
>> http://atlas.evilpiepirate.org/git/linux-bcache.git/tree/Documentation/bcache.txt?h=bcache-dev#n367 
>
> I noteced that one, but it looks kind of scary to me:
> |"Detaches all backing devices and closes the cache devices; if dirty data is present it will disable writeback caching and wait for it to be flushed.|
> Sounds like one of these:
> - the /dev/cache* devices are gone; if so: that's definitely not what 
> I want.
> - or at least the the baching devices are detached; that also sounds 
> bad. I don't want to detacht the backing devices at all, I want to 
> detacht the caching device.
>
> The text is somewhat confusing to me. I'll give it a try, it's only a VM.