https://github.com/torvalds/linux
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Tip revision: 7171511eaec5bf23fb06078f59784a3a0626b38f authored by Linus Torvalds on 16 June 2014, 03:45:28 UTC
Linux 3.16-rc1
Tip revision: 7171511
math.h

/*
 * Copyright (C) 2012 Fujitsu.  All rights reserved.
 * Written by Miao Xie <miaox@cn.fujitsu.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License v2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 021110-1307, USA.
 */

#ifndef __BTRFS_MATH_H
#define __BTRFS_MATH_H

#include <asm/div64.h>

static inline u64 div_factor(u64 num, int factor)
{
	if (factor == 10)
		return num;
	num *= factor;
	do_div(num, 10);
	return num;
}

static inline u64 div_factor_fine(u64 num, int factor)
{
	if (factor == 100)
		return num;
	num *= factor;
	do_div(num, 100);
	return num;
}

#endif
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