From 9f70dce4cef73a8dce009428f787d9c339c5c10e Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sun, 28 Aug 2005 18:26:07 +0000 Subject: Add a SYNC instruction to the S_UNLOCK sequence for MIPS. --- src/include/storage/s_lock.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h index 39410c211b6..6b753bd3c66 100644 --- a/src/include/storage/s_lock.h +++ b/src/include/storage/s_lock.h @@ -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 */ -- cgit v1.2.3