btrfs_free_ref_cache 4104 fs/btrfs/disk-io.c 	btrfs_free_ref_cache(fs_info);
btrfs_free_ref_cache 1019 fs/btrfs/ref-verify.c 		btrfs_free_ref_cache(fs_info);
btrfs_free_ref_cache   11 fs/btrfs/ref-verify.h void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info);