2985 	u64 cur = start;  in __do_readpage()  local
3025 	while (cur <= end) {  in __do_readpage()
3029 		if (cur >= last_byte) {  in __do_readpage()
3038 			set_extent_uptodate(tree, cur, cur + iosize - 1,  in __do_readpage()
3041 				unlock_extent_cached(tree, cur,  in __do_readpage()
3042 						     cur + iosize - 1,  in __do_readpage()
3046 		em = __get_extent_map(inode, page, pg_offset, cur,  in __do_readpage()
3047 				      end - cur + 1, get_extent, em_cached);  in __do_readpage()
3051 				unlock_extent(tree, cur, end);  in __do_readpage()
3054 		extent_offset = cur - em->start;  in __do_readpage()
3055 		BUG_ON(extent_map_end(em) <= cur);  in __do_readpage()
3056 		BUG_ON(end < cur);  in __do_readpage()
3064 		iosize = min(extent_map_end(em) - cur, end - cur + 1);  in __do_readpage()
3134 			set_extent_uptodate(tree, cur, cur + iosize - 1,  in __do_readpage()
3139 				unlock_extent_cached(tree, cur,  in __do_readpage()
3140 						     cur + iosize - 1,  in __do_readpage()
3142 			cur = cur + iosize;  in __do_readpage()
3147 		if (test_range_bit(tree, cur, cur_end,  in __do_readpage()
3151 				unlock_extent(tree, cur, cur + iosize - 1);  in __do_readpage()
3152 			cur = cur + iosize;  in __do_readpage()
3162 				unlock_extent(tree, cur, cur + iosize - 1);  in __do_readpage()
3163 			cur = cur + iosize;  in __do_readpage()
3182 				unlock_extent(tree, cur, cur + iosize - 1);  in __do_readpage()
3184 		cur = cur + iosize;  in __do_readpage()
3446 	u64 cur = start;  in __extent_writepage_io()  local
3493 	while (cur <= end) {  in __extent_writepage_io()
3495 		if (cur >= i_size) {  in __extent_writepage_io()
3497 				tree->ops->writepage_end_io_hook(page, cur,  in __extent_writepage_io()
3501 		em = epd->get_extent(inode, page, pg_offset, cur,  in __extent_writepage_io()
3502 				     end - cur + 1, 1);  in __extent_writepage_io()
3509 		extent_offset = cur - em->start;  in __extent_writepage_io()
3511 		BUG_ON(em_end <= cur);  in __extent_writepage_io()
3512 		BUG_ON(end < cur);  in __extent_writepage_io()
3513 		iosize = min(em_end - cur, end - cur + 1);  in __extent_writepage_io()
3534 				tree->ops->writepage_end_io_hook(page, cur,  in __extent_writepage_io()
3535 							 cur + iosize - 1,  in __extent_writepage_io()
3545 			cur += iosize;  in __extent_writepage_io()
3551 			ret = tree->ops->writepage_io_hook(page, cur,  in __extent_writepage_io()
3552 						cur + iosize - 1);  in __extent_writepage_io()
3561 			set_range_writeback(tree, cur, cur + iosize - 1);  in __extent_writepage_io()
3565 				       page->index, cur, end);  in __extent_writepage_io()
3576 		cur = cur + iosize;  in __extent_writepage_io()
5366 	size_t cur;  in read_extent_buffer()  local
5382 		cur = min(len, (PAGE_CACHE_SIZE - offset));  in read_extent_buffer()
5384 		memcpy(dst, kaddr + offset, cur);  in read_extent_buffer()
5386 		dst += cur;  in read_extent_buffer()
5387 		len -= cur;  in read_extent_buffer()
5397 	size_t cur;  in read_extent_buffer_to_user()  local
5414 		cur = min(len, (PAGE_CACHE_SIZE - offset));  in read_extent_buffer_to_user()
5416 		if (copy_to_user(dst, kaddr + offset, cur)) {  in read_extent_buffer_to_user()
5421 		dst += cur;  in read_extent_buffer_to_user()
5422 		len -= cur;  in read_extent_buffer_to_user()
5472 	size_t cur;  in memcmp_extent_buffer()  local
5489 		cur = min(len, (PAGE_CACHE_SIZE - offset));  in memcmp_extent_buffer()
5492 		ret = memcmp(ptr, kaddr + offset, cur);  in memcmp_extent_buffer()
5496 		ptr += cur;  in memcmp_extent_buffer()
5497 		len -= cur;  in memcmp_extent_buffer()
5507 	size_t cur;  in write_extent_buffer()  local
5524 		cur = min(len, PAGE_CACHE_SIZE - offset);  in write_extent_buffer()
5526 		memcpy(kaddr + offset, src, cur);  in write_extent_buffer()
5528 		src += cur;  in write_extent_buffer()
5529 		len -= cur;  in write_extent_buffer()
5538 	size_t cur;  in memset_extent_buffer()  local
5554 		cur = min(len, PAGE_CACHE_SIZE - offset);  in memset_extent_buffer()
5556 		memset(kaddr + offset, c, cur);  in memset_extent_buffer()
5558 		len -= cur;  in memset_extent_buffer()
5569 	size_t cur;  in copy_extent_buffer()  local
5585 		cur = min(len, (unsigned long)(PAGE_CACHE_SIZE - offset));  in copy_extent_buffer()
5588 		read_extent_buffer(src, kaddr + offset, src_offset, cur);  in copy_extent_buffer()
5590 		src_offset += cur;  in copy_extent_buffer()
5591 		len -= cur;  in copy_extent_buffer()
5628 	size_t cur;  in memcpy_extent_buffer()  local
5657 		cur = min(len, (unsigned long)(PAGE_CACHE_SIZE -  in memcpy_extent_buffer()
5659 		cur = min_t(unsigned long, cur,  in memcpy_extent_buffer()
5663 			   dst_off_in_page, src_off_in_page, cur);  in memcpy_extent_buffer()
5665 		src_offset += cur;  in memcpy_extent_buffer()
5666 		dst_offset += cur;  in memcpy_extent_buffer()
5667 		len -= cur;  in memcpy_extent_buffer()
5674 	size_t cur;  in memmove_extent_buffer()  local
5706 		cur = min_t(unsigned long, len, src_off_in_page + 1);  in memmove_extent_buffer()
5707 		cur = min(cur, dst_off_in_page + 1);  in memmove_extent_buffer()
5709 			   dst_off_in_page - cur + 1,  in memmove_extent_buffer()
5710 			   src_off_in_page - cur + 1, cur);  in memmove_extent_buffer()
5712 		dst_end -= cur;  in memmove_extent_buffer()
5713 		src_end -= cur;  in memmove_extent_buffer()
5714 		len -= cur;  in memmove_extent_buffer()