btrfs-progs: move get_subvol_name() to utils.c

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/utils.c b/utils.c
index 1018a7c0..cd3234e1 100644
--- a/utils.c
+++ b/utils.c
@@ -3159,3 +3159,15 @@ int test_issubvolume(const char *path)
 
 	return (int)stfs.f_type == BTRFS_SUPER_MAGIC;
 }
+
+char *get_subvol_name(char *mnt, char *full_path)
+{
+	int len = strlen(mnt);
+	if (!len)
+		return full_path;
+
+	if (mnt[len - 1] != '/')
+		len += 1;
+
+	return full_path + len;
+}