btrfs-progs: device usage: report slack space

The total filesystem space on a given device might be smaller than the
device size. We should report that space as well. The original idea was
to report the 'occupied' size but the term was not all clear, so the
logic was reversed to report the slack space.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-05-17 16:21:00 +02:00
parent 16570509f6
commit 66a2e4eee4

View File

@ -1024,13 +1024,8 @@ void print_device_sizes(int fd, struct device_info *devinfo, unsigned unit_mode)
printf(" Device size: %*s%10s\n",
(int)(20 - strlen("Device size")), "",
pretty_size_mode(devinfo->device_size, unit_mode));
#if 0
/*
* The term has not seen an agreement and we don't want to change it
* once it's in non-development branches or even released.
*/
printf(" FS occupied: %*s%10s\n",
(int)(20 - strlen("FS occupied")), "",
pretty_size_mode(devinfo->size, unit_mode));
#endif
printf(" Device slack: %*s%10s\n",
(int)(20 - strlen("Device slack")), "",
pretty_size_mode(devinfo->device_size - devinfo->size,
unit_mode));
}