Commitc1ba7db

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Add a comment noting that the owner_pid test in OwnLatch is just a sanity

check, per request by Jeff Davis.

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Lines changed: 2 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -77,7 +77,7 @@`
`77`	`77`	`* Portions Copyright (c) 1994, Regents of the University of California`
`78`	`78`	`*`
`79`	`79`	`* IDENTIFICATION`
`80`		`- * $PostgreSQL: pgsql/src/backend/port/unix_latch.c,v 1.2 2010/09/11 16:26:04 heikki Exp $`
	`80`	`+ * $PostgreSQL: pgsql/src/backend/port/unix_latch.c,v 1.3 2010/09/13 18:01:20 heikki Exp $`
`81`	`81`	`*`
`82`	`82`	`*-------------------------------------------------------------------------`
`83`	`83`	`*/`
`@@ -156,6 +156,7 @@ OwnLatch(volatile Latch *latch)`
`156`	`156`	`if (selfpipe_readfd==-1)`
`157`	`157`	`initSelfPipe();`
`158`	`158`
	`159`	`+/* sanity check */`
`159`	`160`	`if (latch->owner_pid!=0)`
`160`	`161`	`elog(ERROR,"latch already owned");`
`161`	`162`	`latch->owner_pid=MyProcPid;`

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