[linux-2.6-block.git] / tools / virtio / linux / compiler.h

#ifndef LINUX_COMPILER_H
#define LINUX_COMPILER_H

#define WRITE_ONCE(var, val) \
	(*((volatile typeof(val) *)(&(var))) = (val))

#define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))

#endif
Commit	Line	Data
a7c49033 MT	1	#ifndef LINUX_COMPILER_H
	2	#define LINUX_COMPILER_H
	3
	4	#define WRITE_ONCE(var, val) \
	5	(((volatile typeof(val) )(&(var))) = (val))
	6
5da889c7	7	#define READ_ONCE(var) (((volatile typeof(var) )(&(var))))
a7c49033 MT	8
a7c49033 MT	9	#endif