Commitfa72121

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Fix another recently-changed place that was messing with spinlock-

protected data structures and not using a volatile pointer for same.

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Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -15,7 +15,7 @@`
`15`	`15`	`* Portions Copyright (c) 1994, Regents of the University of California`
`16`	`16`	`*`
`17`	`17`	`* IDENTIFICATION`
`18`		`- * $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.32 2005/10/07 21:42:38 tgl Exp $`
	`18`	`+ * $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.33 2005/10/12 16:55:59 tgl Exp $`
`19`	`19`	`*`
`20`	`20`	`*-------------------------------------------------------------------------`
`21`	`21`	`*/`
`@@ -226,7 +226,8 @@ LWLockId`
`226`	`226`	`LWLockAssign(void)`
`227`	`227`	`{`
`228`	`228`	`LWLockIdresult;`
`229`		`-int*LWLockCounter;`
	`229`	`+/* use volatile pointer to prevent code rearrangement */`
	`230`	`+volatileint*LWLockCounter;`
`230`	`231`
`231`	`232`	`LWLockCounter= (int) ((char)LWLockArray-2*sizeof(int));`
`232`	`233`	`SpinLockAcquire(ShmemLock);`

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