We can read fs_info from the block group cache structure and can drop it
from the parameters.
Signed-off-by: David Sterba <dsterba@suse.com>
 
        if (btrfs_test_opt(fs_info, SPACE_CACHE)) {
                mutex_lock(&caching_ctl->mutex);
-               ret = load_free_space_cache(fs_info, cache);
+               ret = load_free_space_cache(cache);
 
                spin_lock(&cache->lock);
                if (ret == 1) {
 
        goto out;
 }
 
-int load_free_space_cache(struct btrfs_fs_info *fs_info,
-                         struct btrfs_block_group_cache *block_group)
+int load_free_space_cache(struct btrfs_block_group_cache *block_group)
 {
+       struct btrfs_fs_info *fs_info = block_group->fs_info;
        struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
        struct inode *inode;
        struct btrfs_path *path;
 
 int btrfs_truncate_free_space_cache(struct btrfs_trans_handle *trans,
                                    struct btrfs_block_group_cache *block_group,
                                    struct inode *inode);
-int load_free_space_cache(struct btrfs_fs_info *fs_info,
-                         struct btrfs_block_group_cache *block_group);
+int load_free_space_cache(struct btrfs_block_group_cache *block_group);
 int btrfs_wait_cache_io(struct btrfs_trans_handle *trans,
                        struct btrfs_block_group_cache *block_group,
                        struct btrfs_path *path);