fs/btrfs/extent_io.c

1001 	u64 last_byte = i_size_read(inode);
1017 	if (page->index == last_byte >> PAGE_SHIFT) {
1018 		size_t zero_offset = offset_in_page(last_byte);
1033 		if (cur >= last_byte) {
4767 	unsigned int last_byte = start + BIT_BYTE(pos + len - 1);
4768 	const bool same_byte = (first_byte == last_byte);
4782 	ASSERT(first_byte + 1 <= last_byte);
4783 	memset_extent_buffer(eb, 0xff, first_byte + 1, last_byte - first_byte - 1);
4786 	kaddr = extent_buffer_get_byte(eb, last_byte);
4804 	unsigned int last_byte = start + BIT_BYTE(pos + len - 1);
4805 	const bool same_byte = (first_byte == last_byte);
4819 	ASSERT(first_byte + 1 <= last_byte);
4820 	memset_extent_buffer(eb, 0, first_byte + 1, last_byte - first_byte - 1);
4823 	kaddr = extent_buffer_get_byte(eb, last_byte);