char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
u64 subvol_objectid);
-#if BITS_PER_LONG == 32
-#define BTRFS_32BIT_MAX_FILE_SIZE (((u64)ULONG_MAX + 1) << PAGE_SHIFT)
-/*
- * The warning threshold is 5/8th of the MAX_LFS_FILESIZE that limits the logical
- * addresses of extents.
- *
- * For 4K page size it's about 10T, for 64K it's 160T.
- */
-#define BTRFS_32BIT_EARLY_WARN_THRESHOLD (BTRFS_32BIT_MAX_FILE_SIZE * 5 / 8)
-void btrfs_warn_32bit_limit(struct btrfs_fs_info *fs_info);
-void btrfs_err_32bit_limit(struct btrfs_fs_info *fs_info);
-#endif
-
/*
* Get the correct offset inside the page of extent buffer.
*