Btrfs-progs: add btrfs filesystem df to print space info

This goes along with the new space info ioctl.  This will spit out the space
info all nice and pretty with the type, it's flags (DUP, RAID) and how much
space is in that group and how much is in use.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/btrfs.c b/btrfs.c
index ce7955b9..f1a8806c 100644
--- a/btrfs.c
+++ b/btrfs.c
@@ -83,6 +83,10 @@ static struct Command commands[] = {
 		"Show the info of a btrfs filesystem. If no <uuid> or <label>\n"
 		"is passed, info of all the btrfs filesystem are shown."
 	},
+	{ do_df_filesystem, 1,
+	  "filesystem df", "<path>\n"
+		"Show space usage information for a mount point\n."
+	},
 	{ do_balance, 1,
 	  "filesystem balance", "<path>\n"
 		"Balance the chunks across the device."