971 	u64 last_byte = i_size_read(inode);  in btrfs_do_readpage()  local
987 	if (page->index == last_byte >> PAGE_SHIFT) {  in btrfs_do_readpage()
988 		size_t zero_offset = offset_in_page(last_byte);  in btrfs_do_readpage()
1003 		if (cur >= last_byte) {  in btrfs_do_readpage()
4543 	unsigned int last_byte = start + BIT_BYTE(pos + len - 1);  in extent_buffer_bitmap_set()  local
4544 	const bool same_byte = (first_byte == last_byte);  in extent_buffer_bitmap_set()
4558 	ASSERT(first_byte + 1 <= last_byte);  in extent_buffer_bitmap_set()
4559 	memset_extent_buffer(eb, 0xff, first_byte + 1, last_byte - first_byte - 1);  in extent_buffer_bitmap_set()
4562 	kaddr = extent_buffer_get_byte(eb, last_byte);  in extent_buffer_bitmap_set()
4580 	unsigned int last_byte = start + BIT_BYTE(pos + len - 1);  in extent_buffer_bitmap_clear()  local
4581 	const bool same_byte = (first_byte == last_byte);  in extent_buffer_bitmap_clear()
4595 	ASSERT(first_byte + 1 <= last_byte);  in extent_buffer_bitmap_clear()
4596 	memset_extent_buffer(eb, 0, first_byte + 1, last_byte - first_byte - 1);  in extent_buffer_bitmap_clear()
4599 	kaddr = extent_buffer_get_byte(eb, last_byte);  in extent_buffer_bitmap_clear()