include/linux/kernel.h

/* Copyright (C) 2010 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by the GPL v2 license that can
 * be found in the LICENSE file.
 * 
 * Parts of this file are derived from the Linux kernel from the file with
 * the same name and path under include/.
 */
#ifndef VERITY_INCLUDE_LINUX_KERNEL_H_
#define VERITY_INCLUDE_LINUX_KERNEL_H_
/* Pull in _MAX defines */
#include <limits.h>
#include <stdint.h>

#define ALIGN(x,a)		__ALIGN_MASK(x,(typeof(x))(a)-1)
#define __ALIGN_MASK(x,mask)	(((x)+(mask))&~(mask))
#define IS_ALIGNED(x, a)		(((x) & ((typeof(x))(a) - 1)) == 0)

#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))

#define sector_div(n, b) ({ \
	int _res; \
	_res = (n) % (b); \
	(n) /= (b); \
	_res; \
})

#define min(x, y) ({				\
	typeof(x) _min1 = (x);			\
	typeof(y) _min2 = (y);			\
	(void) (&_min1 == &_min2);		\
	_min1 < _min2 ? _min1 : _min2; })

#define max(x, y) ({				\
	typeof(x) _max1 = (x);			\
	typeof(y) _max2 = (y);			\
	(void) (&_max1 == &_max2);		\
	_max1 > _max2 ? _max1 : _max2; })


#endif  /* VERITY_INCLUDE_LINUX_KERNEL_H_ */