btrfs: move btrfs_cmp_device_free_bytes to super.c

this function won't be used here anymore, so move it super.c where it is
used for df-calculation

1 files changed, 0 insertions, 13 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8b9fb8c7683d..a9f1fc23278b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2282,19 +2282,6 @@ static noinline u64 chunk_bytes_by_type(u64 type, u64 calc_size,
                 return calc_size * num_stripes;
 }
 
-/* Used to sort the devices by max_avail(descending sort) */
-int btrfs_cmp_device_free_bytes(const void *dev_info1, const void *dev_info2)
-{
-        if (((struct btrfs_device_info *)dev_info1)->max_avail >
-            ((struct btrfs_device_info *)dev_info2)->max_avail)
-                return -1;
-        else if (((struct btrfs_device_info *)dev_info1)->max_avail <
-                 ((struct btrfs_device_info *)dev_info2)->max_avail)
-                return 1;
-        else
-                return 0;
-}
-
 static int __btrfs_calc_nstripes(struct btrfs_fs_devices *fs_devices, u64 type,
                                  int *num_stripes, int *min_stripes,
                                  int *sub_stripes)