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Add a SYNC instruction to the S_UNLOCK sequence for MIPS.

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This commit is contained in:
Tom Lane 2005-08-28 18:26:01 +00:00
parent 0c172b215a
commit 7319ab9a59
1 changed files with 9 additions and 1 deletions
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10
src/include/storage/s_lock.h
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@ -66,7 +66,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.138 2005/08/27 16:22:48 tgl Exp $ * $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.139 2005/08/28 18:26:01 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -487,6 +487,14 @@ tas(volatile slock_t *lock)
return _res; 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 */ #endif /* __mips__ && !__sgi */