22 	unsigned long b, m, y = 0;  in int_sqrt()  local
27 	m = 1UL << (__fls(x) & ~1UL);  in int_sqrt()
28 	while (m != 0) {  in int_sqrt()
29 		b = y + m;  in int_sqrt()
34 			y += m;  in int_sqrt()
36 		m >>= 2;  in int_sqrt()
43 #if BITS_PER_LONG < 64
45  * int_sqrt64 - strongly typed int_sqrt function when minimum 64 bit input
47  * @x: 64bit integer of which to calculate the sqrt
51 	u64 b, m, y = 0;  in int_sqrt64()  local
56 	m = 1ULL << ((fls64(x) - 1) & ~1ULL);  in int_sqrt64()
57 	while (m != 0) {  in int_sqrt64()
58 		b = y + m;  in int_sqrt64()
63 			y += m;  in int_sqrt64()
65 		m >>= 2;  in int_sqrt64()