linux/fs/btrfs/math.h
David Sterba 9888c3402c btrfs: replace GPL boilerplate by SPDX -- headers
Remove GPL boilerplate text (long, short, one-line) and keep the rest,
ie. personal, company or original source copyright statements. Add the
SPDX header.

Unify the include protection macros to match the file names.

Signed-off-by: David Sterba <dsterba@suse.com>
2018-04-12 16:29:46 +02:00

29 lines
487 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2012 Fujitsu. All rights reserved.
* Written by Miao Xie <miaox@cn.fujitsu.com>
*/
#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;
return div_u64(num, 10);
}
static inline u64 div_factor_fine(u64 num, int factor)
{
if (factor == 100)
return num;
num *= factor;
return div_u64(num, 100);
}
#endif