write barrier before reset gc_active

Sokolov Yura · Sokolov Yura · commit d9d411ba0da0 · 2017-06-26T15:44:43.000+03:00
diff --git a/src/backend/storage/file/cfs.c b/src/backend/storage/file/cfs.c
@@ -607,7 +607,10 @@ static bool cfs_recover(FileMap* map, int md,
 		unlink(map_bck_path);
 	}
 	if (ok)
+	{
+		pg_write_barrier();
 		pg_atomic_write_u32(&map->gc_active, false); /* clear the GC flag */
+	}
 	return ok;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -607,7 +607,10 @@ static bool cfs_recover(FileMap* map, int md,`
`607`	`607`	`unlink(map_bck_path);`
`608`	`608`	`}`
`609`	`609`	`if (ok)`
	`610`	`+ {`
	`611`	`+ pg_write_barrier();`
`610`	`612`	`pg_atomic_write_u32(&map->gc_active, false); /* clear the GC flag */`
	`613`	`+ }`
`611`	`614`	`return ok;`
`612`	`615`	`}`
`613`	`616`