xfs_destroy_workqueues() should not be tagged with__exit

ia64 throws away .exit sections for the built-in CONFIG case, so routines
that are used in other circumstances should not be tagged as __exit.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/xfs/linux-2.6/xfs_super.c

@@ -1741,7 +1741,7 @@ out:
 	return -ENOMEM;
 }
 
-STATIC void __exit
+STATIC void
 xfs_destroy_workqueues(void)
 {
 	destroy_workqueue(xfs_ail_wq);