https://github.com/torvalds/linux
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Tip revision: 9489e9dcae718d5fde988e4a684a0f55b5f94d17 authored by Linus Torvalds on 26 November 2012, 01:59:19 UTC
Linux 3.7-rc7
Tip revision: 9489e9d
reciprocal_div.c
#include <asm/div64.h>
#include <linux/reciprocal_div.h>
#include <linux/export.h>

u32 reciprocal_value(u32 k)
{
	u64 val = (1LL << 32) + (k - 1);
	do_div(val, k);
	return (u32)val;
}
EXPORT_SYMBOL(reciprocal_value);
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