fs/btrfs/inode.c

424 	u64 page_start = 0, page_end = 0;
428 		page_start = page_offset(locked_page);
429 		page_end = page_start + PAGE_SIZE - 1;
443 		if (locked_page && index == (page_start >> PAGE_SHIFT)) {
464 		if (bytes + offset <= page_start + PAGE_SIZE)
472 		if (page_start >= offset && page_end <= (offset + bytes - 1)) {
1092 			const u64 page_start = page_offset(locked_page);
1097 						       page_start, PAGE_SIZE,
2723 	u64 page_start = page_offset(page);
2732 	ret = btrfs_delalloc_reserve_space(inode, &data_reserved, page_start,
2763 						     page_start, PAGE_SIZE,
2777 	lock_extent(&inode->io_tree, page_start, page_end, &cached_state);
2783 	ordered = btrfs_lookup_ordered_range(inode, page_start, PAGE_SIZE);
2785 		unlock_extent(&inode->io_tree, page_start, page_end,
2793 	ret = btrfs_set_extent_delalloc(inode, page_start, page_end, 0,
2810 		btrfs_delalloc_release_space(inode, data_reserved, page_start,
2812 	unlock_extent(&inode->io_tree, page_start, page_end, &cached_state);
2820 		btrfs_mark_ordered_io_finished(inode, page, page_start,
2824 	btrfs_folio_clear_checked(fs_info, page_folio(page), page_start, PAGE_SIZE);
8017 	u64 page_start = folio_pos(folio);
8018 	u64 page_end = page_start + folio_size(folio) - 1;
8056 		lock_extent(tree, page_start, page_end, &cached_state);
8058 	cur = page_start;
8208 	u64 page_start;
8217 	page_start = page_offset(page);
8218 	page_end = page_start + PAGE_SIZE - 1;
8230 					    page_start, reserved_space);
8249 	    (page_start >= size)) {
8255 	lock_extent(io_tree, page_start, page_end, &cached_state);
8259 		unlock_extent(io_tree, page_start, page_end, &cached_state);
8267 	ordered = btrfs_lookup_ordered_range(BTRFS_I(inode), page_start,
8270 		unlock_extent(io_tree, page_start, page_end, &cached_state);
8279 		reserved_space = round_up(size - page_start,
8282 			end = page_start + reserved_space - 1;
8284 					data_reserved, page_start,
8296 	clear_extent_bit(&BTRFS_I(inode)->io_tree, page_start, end,
8300 	ret2 = btrfs_set_extent_delalloc(BTRFS_I(inode), page_start, end, 0,
8303 		unlock_extent(io_tree, page_start, page_end, &cached_state);
8309 	if (page_start + PAGE_SIZE > size)
8317 	btrfs_folio_clear_checked(fs_info, folio, page_start, PAGE_SIZE);
8318 	btrfs_folio_set_dirty(fs_info, folio, page_start, end + 1 - page_start);
8319 	btrfs_folio_set_uptodate(fs_info, folio, page_start, end + 1 - page_start);
8323 	unlock_extent(io_tree, page_start, page_end, &cached_state);
8336 	btrfs_delalloc_release_space(BTRFS_I(inode), data_reserved, page_start,