Files
liburing/src/barrier.h
Jens Axboe 6110279661 Update barriers for x86/x86-64
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-16 09:04:02 -07:00

17 lines
441 B
C

#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