rwsem: do not block readers at head of queue if other readers are active
[platform/adaptation/renesas_rcar/renesas_kernel.git] / lib / reciprocal_div.c
1 #include <asm/div64.h>
2 #include <linux/reciprocal_div.h>
3 #include <linux/export.h>
4
5 u32 reciprocal_value(u32 k)
6 {
7         u64 val = (1LL << 32) + (k - 1);
8         do_div(val, k);
9         return (u32)val;
10 }
11 EXPORT_SYMBOL(reciprocal_value);