1165 	const u64 page_start = page_offset(page);  in writepage_delalloc()  local
1166 	const u64 page_end = page_start + PAGE_SIZE - 1;  in writepage_delalloc()
1167 	u64 delalloc_start = page_start;  in writepage_delalloc()
1193 		DIV_ROUND_UP(delalloc_end + 1 - page_start, PAGE_SIZE);  in writepage_delalloc()
1405 	const u64 page_start = page_offset(page);  in __extent_writepage()  local
1450 		btrfs_mark_ordered_io_finished(BTRFS_I(inode), page, page_start,  in __extent_writepage()
1720 	u64 page_start = page_offset(page);  in submit_eb_subpage()  local
1749 		start = page_start + bit_start * fs_info->sectorsize;  in submit_eb_subpage()
4687 	u64 page_start = page_offset(page);  in get_next_extent_buffer()  local
4688 	u64 cur = page_start;  in get_next_extent_buffer()
4690 	ASSERT(in_range(bytenr, page_start, PAGE_SIZE));  in get_next_extent_buffer()
4693 	while (cur < page_start + PAGE_SIZE) {  in get_next_extent_buffer()
4705 			if (gang[i]->start >= page_start + PAGE_SIZE)  in get_next_extent_buffer()