[linux-block.git] / tools / io_uring / barrier.h

#ifndef LIBURING_BARRIER_H
#define LIBURING_BARRIER_H

#if defined(__x86_64) || defined(__i386__)
#define read_barrier()	__asm__ __volatile__("":::"memory")
#define write_barrier()	__asm__ __volatile__("":::"memory")
#else
/*
 * Add arch appropriate definitions. Be safe and use full barriers for
 * archs we don't have support for.
 */
#define read_barrier()	__sync_synchronize()
#define write_barrier()	__sync_synchronize()
#endif

#endif
Commit	Line	Data
21b4aa5d JA	1	#ifndef LIBURING_BARRIER_H
	2	#define LIBURING_BARRIER_H
	3
	4	#if defined(__x86_64) \|\| defined(__i386__)
	5	#define read_barrier() __asm__ __volatile__("":::"memory")
	6	#define write_barrier() __asm__ __volatile__("":::"memory")
	7	#else
	8	/*
	9	* Add arch appropriate definitions. Be safe and use full barriers for
	10	* archs we don't have support for.
	11	*/
	12	#define read_barrier() __sync_synchronize()
	13	#define write_barrier() __sync_synchronize()
	14	#endif
	15
	16	#endif