diff options
Diffstat (limited to 'src/include/storage/barrier.h')
| -rw-r--r-- | src/include/storage/barrier.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/src/include/storage/barrier.h b/src/include/storage/barrier.h index bc61de0ff14..79a2f8d9b2c 100644 --- a/src/include/storage/barrier.h +++ b/src/include/storage/barrier.h @@ -109,16 +109,7 @@ extern slock_t dummy_spinlock; #define pg_memory_barrier() __asm__ __volatile__ ("sync" : : : "memory") #define pg_read_barrier() __asm__ __volatile__ ("lwsync" : : : "memory") #define pg_write_barrier() __asm__ __volatile__ ("lwsync" : : : "memory") -#elif defined(__alpha) || defined(__alpha__) /* Alpha */ -/* - * Unlike all other known architectures, Alpha allows dependent reads to be - * reordered, but we don't currently find it necessary to provide a conditional - * read barrier to cover that case. We might need to add that later. - */ -#define pg_memory_barrier() __asm__ __volatile__ ("mb" : : : "memory") -#define pg_read_barrier() __asm__ __volatile__ ("rmb" : : : "memory") -#define pg_write_barrier() __asm__ __volatile__ ("wmb" : : : "memory") #elif defined(__hppa) || defined(__hppa__) /* HP PA-RISC */ /* HPPA doesn't do either read or write reordering */ |