Re: Updating the wiki pages adding btrfs command [Was Re: reserving an IOCTL number; other details]

[Goffredo Baroncelli <kreijack@gmail.com>]

On Wednesday, 15 September, 2010, David Nicol wrote:
> btrfs s ... is imprecise, as the operation isn't on a subvolume, but
> on the fi where the s used to be but isn't any more.

ok 
> 
> With your approval I'll go with "filesystem garbage-collection" which
> can be abbrevd to
> 
>    btrfs fi g /butter 30000 || echo there should be some more space now \
>    but it would have taken more than 30 sec to clean it all
> 
> and in some imaginary future might trigger something instead of simply
> waiting for something.

I don't like too much "garbage-collector". It seems that you can start a 
"garbage collector". Instead we wait the finish of the garbage collector 
activity.

I would like also to have the option to wait in "btrfs subvolume delete"

# btrfs subvolume delete --wait /path/to/subvolume

(instead of "--wait", we can use "--sync"...)

In any case could you highlight the behavior of your ioctl when two snapshot 
deletions are performed. Does the ioctl wait the end of both the snapshot 
deletion ? 

Regards
G.Baroncelli

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