Further tweak for comment in CheckDeadLock(), per Tom.

Neil Conway · Neil Conway · commit 837424605408 · 2008-06-09T18:23:05.000Z
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.200 2008/06/09 06:55:34 neilc Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.201 2008/06/09 18:23:05 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1171,9 +1171,9 @@ CheckDeadLock(void)
 	/*
 	 * Check to see if we've been awoken by anyone in the interim.
 	 *
-	 * If we can return and resume our transaction -- happy day.  Before we
-	 * are awoken the process releasing the lock grants it to us so we know
-	 * that we don't have to wait anymore.
+	 * If we have, we can return and resume our transaction -- happy day.
+	 * Before we are awoken the process releasing the lock grants it to us
+	 * so we know that we don't have to wait anymore.
 	 *
 	 * We check by looking to see if we've been unlinked from the wait queue.
 	 * This is quicker than checking our semaphore's state, since no kernel

Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,7 @@`
`8`	`8`	`*`
`9`	`9`	`*`
`10`	`10`	`* IDENTIFICATION`
`11`		`- * $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.200 2008/06/09 06:55:34 neilc Exp $`
	`11`	`+ * $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.201 2008/06/09 18:23:05 neilc Exp $`
`12`	`12`	`*`
`13`	`13`	`*-------------------------------------------------------------------------`
`14`	`14`	`*/`
`@@ -1171,9 +1171,9 @@ CheckDeadLock(void)`
`1171`	`1171`	`/*`
`1172`	`1172`	`* Check to see if we've been awoken by anyone in the interim.`
`1173`	`1173`	`*`
`1174`		`- * If we can return and resume our transaction -- happy day. Before we`
`1175`		`- * are awoken the process releasing the lock grants it to us so we know`
`1176`		`- * that we don't have to wait anymore.`
	`1174`	`+ * If we have, we can return and resume our transaction -- happy day.`
	`1175`	`+ * Before we are awoken the process releasing the lock grants it to us`
	`1176`	`+ * so we know that we don't have to wait anymore.`
`1177`	`1177`	`*`
`1178`	`1178`	`* We check by looking to see if we've been unlinked from the wait queue.`
`1179`	`1179`	`* This is quicker than checking our semaphore's state, since no kernel`