Btrfs: Remove unused btrfs_block_group_free_space()

We've already recorded the value in block_group->frees_space.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>

2 files changed, 0 insertions, 16 deletions

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 11d2e9cea09e..3af64c6ea9df 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1685,21 +1685,6 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
                "\n", count);
 }
 
-u64 btrfs_block_group_free_space(struct btrfs_block_group_cache *block_group)
-{
-        struct btrfs_free_space *info;
-        struct rb_node *n;
-        u64 ret = 0;
-
-        for (n = rb_first(&block_group->free_space_offset); n;
-             n = rb_next(n)) {
-                info = rb_entry(n, struct btrfs_free_space, offset_index);
-                ret += info->bytes;
-        }
-
-        return ret;
-}
-
 /*
  * for a given cluster, put all of its extents back into the free
  * space cache.  If the block group passed doesn't match the block group
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index 65c3b935289f..12b2b5165f8a 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -55,7 +55,6 @@ u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group,
                                u64 offset, u64 bytes, u64 empty_size);
 void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
                            u64 bytes);
-u64 btrfs_block_group_free_space(struct btrfs_block_group_cache *block_group);
 int btrfs_find_space_cluster(struct btrfs_trans_handle *trans,
                              struct btrfs_root *root,
                              struct btrfs_block_group_cache *block_group,