On Thu, Jul 16, 2015 at 04:47:13PM +0100, fdmanana@xxxxxxxxxx wrote: > From: Filipe Manana <fdmanana@xxxxxxxx> > > Currently there is not way for a user to know what is the minimum size a > device of a btrfs filesystem can be resized to. Sometimes the value of > total allocated space (sum of all allocated chunks/device extents), which > can be parsed from 'btrfs filesystem show' and 'btrfs filesystem usage', > works as the minimum size, but sometimes it does not, namely when device > extents have to relocated to holes (unallocated space) within the new > size of the device (the total allocated space sum). > > This change adds the ability to reliably compute such minimum value and > extents 'btrfs filesystem resize' with the following syntax to get such > value: > > btrfs filesystem resize [devid:]get_min_size > > Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx> Applied, thanks. As mentioned before, the preferred interface is 'inspect-internal'. I've named the command 'min-dev-size' and added optional arugment --id as replacement for the original resize syntax. (It's a simple getopt stub so I'm not posting the patch.) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
