58 	size_t copy;  in copy_to_rd()  local
60 	copy = min_t(size_t, n, PAGE_SIZE - offset);  in copy_to_rd()
65 	memcpy(dst + offset, src, copy);  in copy_to_rd()
68 	if (copy < n) {  in copy_to_rd()
69 		src += copy;  in copy_to_rd()
70 		sector += copy >> SECTOR_SHIFT;  in copy_to_rd()
71 		copy = n - copy;  in copy_to_rd()
76 		memcpy(dst, src, copy);  in copy_to_rd()
90 	size_t copy;  in copy_from_rd()  local
92 	copy = min_t(size_t, n, PAGE_SIZE - offset);  in copy_from_rd()
96 		memcpy(dst, src + offset, copy);  in copy_from_rd()
99 		memset(dst, 0, copy);  in copy_from_rd()
102 	if (copy < n) {  in copy_from_rd()
103 		dst += copy;  in copy_from_rd()
104 		sector += copy >> SECTOR_SHIFT;  in copy_from_rd()
105 		copy = n - copy;  in copy_from_rd()
109 			memcpy(dst, src, copy);  in copy_from_rd()
112 			memset(dst, 0, copy);  in copy_from_rd()