On Sun, Sep 29, 2013 at 11:25:36PM +0800, Anand Jain wrote: > It needs a lot more information about the snapshots if > snapshot's life cycle has to be all auto managed by > scripts _some day_. this patch is a step towards that. > > This patch provides the size which would be freed > if the subvol/snapshot is deleted. > preview: > --------------------- > btrfs su show /btrfs/sv1 > :: > Unshared space: 89.09MiB
Useful information, but it takes time to calculate the number. The tree search ioctl has significant overhead and seeking all over the extent tree can be also lengthy. I've tried it on a random subvolume on a SSD disk and it's been running 10 minutes already, one cpu is at 100%. david -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
