2891 	size_t iosize;  in __do_readpage()  local
2911 			iosize = PAGE_SIZE - zero_offset;  in __do_readpage()
2913 			memset(userpage + zero_offset, 0, iosize);  in __do_readpage()
2926 			iosize = PAGE_SIZE - pg_offset;  in __do_readpage()
2928 			memset(userpage + pg_offset, 0, iosize);  in __do_readpage()
2931 			set_extent_uptodate(tree, cur, cur + iosize - 1,  in __do_readpage()
2934 					     cur + iosize - 1, &cached);  in __do_readpage()
2954 		iosize = min(extent_map_end(em) - cur, end - cur + 1);  in __do_readpage()
2956 		iosize = ALIGN(iosize, blocksize);  in __do_readpage()
2962 			disk_io_size = iosize;  in __do_readpage()
3020 			memset(userpage + pg_offset, 0, iosize);  in __do_readpage()
3024 			set_extent_uptodate(tree, cur, cur + iosize - 1,  in __do_readpage()
3027 					     cur + iosize - 1, &cached);  in __do_readpage()
3028 			cur = cur + iosize;  in __do_readpage()
3029 			pg_offset += iosize;  in __do_readpage()
3036 			unlock_extent(tree, cur, cur + iosize - 1);  in __do_readpage()
3037 			cur = cur + iosize;  in __do_readpage()
3038 			pg_offset += iosize;  in __do_readpage()
3046 			unlock_extent(tree, cur, cur + iosize - 1);  in __do_readpage()
3047 			cur = cur + iosize;  in __do_readpage()
3048 			pg_offset += iosize;  in __do_readpage()
3064 			unlock_extent(tree, cur, cur + iosize - 1);  in __do_readpage()
3067 		cur = cur + iosize;  in __do_readpage()
3068 		pg_offset += iosize;  in __do_readpage()
3311 	u64 iosize;  in __extent_writepage_io()  local
3374 		iosize = min(em_end - cur, end - cur + 1);  in __extent_writepage_io()
3375 		iosize = ALIGN(iosize, blocksize);  in __extent_writepage_io()
3396 							 cur + iosize - 1,  in __extent_writepage_io()
3406 			cur += iosize;  in __extent_writepage_io()
3407 			pg_offset += iosize;  in __extent_writepage_io()
3411 		btrfs_set_range_writeback(tree, cur, cur + iosize - 1);  in __extent_writepage_io()
3419 					 page, offset, iosize, pg_offset,  in __extent_writepage_io()
3429 		cur = cur + iosize;  in __extent_writepage_io()
3430 		pg_offset += iosize;  in __extent_writepage_io()