same_block       2742 fs/btrfs/file.c 	bool same_block;
same_block       2765 fs/btrfs/file.c 	same_block = (BTRFS_BYTES_TO_BLKS(fs_info, offset))
same_block       2775 fs/btrfs/file.c 	if (same_block && len < fs_info->sectorsize) {