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Add a SYNC instruction to the S_UNLOCK sequence for MIPS.

This commit is contained in:
Tom Lane
2005-08-28 18:26:07 +00:00
parent 5677c28c91
commit 9f70dce4ce

View File

@@ -66,7 +66,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.133.4.3 2005/08/27 16:22:58 tgl Exp $
* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.133.4.4 2005/08/28 18:26:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -472,6 +472,14 @@ tas(volatile slock_t *lock)
return _res;
}
/* MIPS S_UNLOCK is almost standard but requires a "sync" instruction */
#define S_UNLOCK(lock) \
do \
{\
__asm__ __volatile__ (" sync \n"); \
*((volatile slock_t *) (lock)) = 0; \
} while (0)
#endif /* __mips__ && !__sgi */